dr Aneta Ustrzycka 

Doktorat
20121219  Optymalne kształtowanie elementów konstrukcyjnych z uwagi na czas zniszczenia mieszanego w warunkach pełzania (PK)
 1245 
Ostatnie publikacje
1.  Nowak M., Mulewska K.^{♦}, Azarov A.^{♦}, Kurpaska ^{♦}, Ustrzycka A., A peridynamic elastoplastic damage model for ionirradiated materials, INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES, ISSN: 00207403, DOI: 10.1016/j.ijmecsci.2022.107806, No.107806, pp.146, 2022 Streszczenie: This study presents the novel peridynamic constitutive relations formulated in order to predict the plastic deformation and damage evolution in irradiated materials. The plastic behaviour of the material in which radiation induced defects contribute to the defined peridynamic porosity is described by the GursonTvergaardNeedleman (GTN) yield criterion with irradiation hardening. The definition of peridynamic porosity is proposed as a volume of discontinuities created in the volume of peridynamic particles. The new constitutive relations for irradiation hardening based on the dilatational part of elastic strain energy are formulated. The physical relevance of coupling the porosity with the nonlinear irradiation hardening is discussed. The expressions for the yield function, kinetics of evolution of radiation induced porosity, irradiation hardening and plastic flow rule are derived in terms of the peridynamics variables. The peridynamic predictions are calibrated based on the experimental data obtained during the advanced experimental campaigns dedicated to irradiated materials to verify the validity of the proposed constitutive model. Ion irradiation campaigns were carried out to mimic the effects of neutron irradiation. A series of indentation experiments were conducted to elucidate the effects of material structure modification and assess the hardening effect originating from radiation defects. Słowa kluczowe: Peridynamics,Constitutive modeling,Radiation induced damage,Peridynamic porosity,Gurson yield function,Irradiation hardening,Ion irradiation,Nanoindentation test Afiliacje autorów:
 140p.  
2.  DominguezGutierrez F.J.^{♦}, Ustrzycka A., Xu Q.^{♦}, AlvarezDonado R.^{♦}, Papanikolaou S.^{♦}, Alava M.J.^{♦}, Dislocation nucleation mechanisms during nanoindentation of concentrated FeNiCr alloys: unveiling the effects of Cr through molecular simulations, MODELLING AND SIMULATION IN MATERIALS SCIENCE AND ENGINEERING, ISSN: 09650393, DOI: 10.1088/1361651X/ac9d54, Vol.30, No.085010, pp.115, 2022 Streszczenie: Febased alloys with high chromium and nickel concentrations are very attractive for efficient energy production in extreme operating conditions. We perform molecular dynamics (MD) simulations of nanoindentation on fcc FeNiCr multicomponent materials. Equiatomic FeNi, Fe55Ni19Cr26, and Fe74Ni8Cr18 are tested by using established interatomic potentials and similar conditions, for the elucidation of key dislocation nucleation mechanisms and interactions. Generally, we find that the presence of Cr in these alloys reduces the mobility of prismatic dislocation loops, and increases their area, regardless of crystallographic orientation. Dislocation nucleation and evolution is tracked during mechanical testing as a function of nanoindentation strain and Kocks–Mecking continuum modeling displays good agreement with MD findings. Furthermore, the analysis of geometrically necessary dislocations (GNDs) is consistent with the Ma–Clarke’s model at depths lower than 1.5 nm. The presence of Cr leads to a decrease of the GND density with respect to Crless FeNi samples, thus we find that Cr is critically responsible of increasing these alloys’ hardness. Postindentation impression maps indicate that Ni–Fe–Cr compositions display strain localization and hardening due to high Cr concentration. Afiliacje autorów:
 70p.  
3.  Ustrzycka A., Physical mechanisms based constitutive model of creep in irradiated and unirradiated metals at cryogenic temperatures, Journal of Nuclear Materials, ISSN: 00223115, DOI: 10.1016/j.jnucmat.2021.152851, Vol.548, pp.152851115, 2021 Streszczenie: The present work describes the physical mechanisms of low temperature creep in irradiated and unirradiated metals. The slow inelastic deformations of solids under stress below the yield stress of the material are considered. For the problem of creep at cryogenic temperatures, the classical creep models are not enough. The purpose of this paper is to formulate a physicallybased constitutive model of creep for irradiated materials at cryogenic temperatures (liquid nitrogen 77 K, liquid helium, 4.2 K) based on the idea that a dislocation held up by a potential barrier can pass through it owing to the quantummechanical tunnelling effect. The problem is novel in the context of recognition of physical mechanisms taking place at cryogenic temperatures leading to the evolution of radiation induced defects under mechanical loads. Creep produced by the expansion of irradiation induced dislocation loops is considered. The kinetic law for evolution of a dislocation loop is proposed using the mechanism of development of a dislocation line over Peierls stress hills. Also, creep produced by the elastic interaction of a radiation induced point defects with existing dislocations in materials is regarded. Predicted creep rate behaviour as a function of stresses and dpa are presented which would need to be validated with data in irradiated materials. Moreover, the new constitutive model of low temperature creep in unirradiated materials is formulated. The GlenMott quantum mechanical dislocation tunnelling effect allows extending the theory to the liquid helium temperature range. For this case of unirradiated materials, the creep curves validated experimentally for copper and stainless steel in cryogenic temperature are shown. Słowa kluczowe: creep in the proximity of absolute zero,irradiation creep,quantummechanical tunneling effect,cryogenic temperatures,low thermal energy,Peierls stress hills Afiliacje autorów:
 100p.  
4.  Kowalewski Z.L., Szymczak T.^{♦}, Ustrzycka A., Współczesna interferometria plamkowa na tropach przyczyn uszkodzeń pod wpływem obciążeń zmęczeniowych, Dozór Techniczny, ISSN: 02091763, Vol.4, pp.2528, 2021  
5.  Ustrzycka A., Mróz Z., Kowalewski Z.L., Kucharski S., Analysis of fatigue crack initiation in cyclic microplasticity regime, INTERNATIONAL JOURNAL OF FATIGUE, ISSN: 01421123, DOI: 10.1016/j.ijfatigue.2019.105342, Vol.131, pp.105342115, 2020 Streszczenie: The present work provides description of fatigue crack initiation in metals subjected to cyclic loading within the nominal elastic or initial elasticplastic regimes next passing to elastic response during cyclic deformation and shake down process. It is assumed that damage growth proceeds due to action of local stress, specified as the sum of mean stress and its fluctuations induced by material inhomogeneities such as grain boundaries, inclusions, cavities, boundary asperities, also due to design notches or holes introduced into the element. The damage growth model is proposed, based on the critical plane concept. The macrocrack initiation then corresponds to a critical value of accumulated damage. The modelling of damage growth is supported by Electronic Speckle Pattern Interferometry (ESPI) apparatus using the coherent laser light. The damage growth effect is analysed by microindentation tests. The fatigue tests are performed for high strength steel specimens with central hole. Słowa kluczowe: fatigue crack initiation, microplasticity, damage evolution, optical ESPI method, micro indentation Afiliacje autorów:
 140p.  
6.  Ustrzycka A., Skoczeń B.^{♦}, Nowak M., Kurpaska Ł.^{♦}, Wyszkowska E.^{♦}, Jagielski J.^{♦}, Elastic–plasticdamage model of nanoindentation of the ionirradiated 6061 aluminium alloy, INTERNATIONAL JOURNAL OF DAMAGE MECHANICS, ISSN: 10567895, DOI: 10.1177/1056789520906209, pp.135, 2020 Streszczenie: The paper presents experimental and numerical characterization of damage evolution for ionirradiated materials subjected to plastic deformation during nanoindentation. Ion irradiation technique belongs to the methods where creation of radiationinduced defects is controlled with a high accuracy (including both, concentration and depth distribution control), and allows to obtain materials having a wide range of damage level, usually expressed in terms of displacements per atom (dpa) scale. Ion affected layers are usually thin, typically less than 1 micrometer thick. Such a low thickness requires to use nanoindentation technique to measure the mechanical properties of the irradiated layers. The He or Ar ion penetration depth reaches approximately 150 nm, which is sufficient to perform several loadingpartialunloading cycles at increasing forces. Damage evolution is reflected by the forcedisplacement diagram, that is backed by the stress–strain relation including damage. In this work the following approach is applied: dpa is obtained from physics (irradiation mechanisms), afterwards, the radiationinduced damage is defined in the framework of continuum damage mechanics to solve the problem of further evolution of damage fields under mechanical loads. The nature of radiationinduced damage is close to porosity because of formation of clusters of vacancies. The new mathematical relation between radiation damage (dpa) and porosity parameter is proposed. Deformation process experienced by the ion irradiated materials during the nanoindentation test is then numerically simulated by using extended Gurson–Tvergaard– Needleman (GTN) model, that accounts for the damage effects. The corresponding numerical results are validated by means of the experimental measurements. It turns out, that the GTN model quite successfully reflects closure of voids, and increase of material density during the nanoindentation. Słowa kluczowe: radiationinduced damage, evolution of vacancy clusters, nanoindentation test, ion irradiation, radiation hardening Afiliacje autorów:
 100p.  
7.  Ustrzycka A., Szuwalski K.^{♦}, Annular rotating disks optimal with respect to mixed creep rupture, JOURNAL OF THEORETICAL AND APPLIED MECHANICS, ISSN: 14292955, DOI: 10.15632/jtampl.56.1.57, Vol.56, No.1, pp.5769, 2018 Streszczenie: Optimal shapes in the class of polynomial functions for rotating annular disks with respect to the mixed creep rupture time are found. Two effects leading to damage: diminishing of transversal dimensions and growth of microcracks are simultaneously taken into account. The first of them requires the finite strain analysis, the latter is described by Kachanov's evolution equation. Behaviour of the material is described by nonlinear Norton's law, generalized for true stresses and logarithmic strains, and the shape change law in form of similarity of true stresses and logarithmic strains deviators. For optimal shapes of the disk, changes of geometry and a continuity function are presented. The theoretical considerations based on the perception of the structural components as some highlighted objects with defined properties is presented Słowa kluczowe: annular disk, mixed creep rupture, optimal design Afiliacje autorów:
 15p.  
8.  Ustrzycka A., Mróz Z., Kowalewski Z.L., Experimental analysis and modelling of fatigue crack initiation mechanisms, JOURNAL OF THEORETICAL AND APPLIED MECHANICS, ISSN: 14292955, DOI: 10.15632/jtampl.55.4.1443, Vol.55, No.4, pp.14431448, 2017 Streszczenie: The present work is devoted to simulation of fatigue crack initiation for cyclic loading within the nominal elastic regime. It is assumed that damage growth occurs due to action of meanstress and its fluctuations induced by crystalline grain inhomogeneity and the free boundary effect. The macrocrack initiation corresponds to a critical value of accumulated damage. The modelling of damage growth is supported by Electronic Speckle Pattern Interferometry (ESPI) apparatus using coherent laser light. Słowa kluczowe: fatigue crack initiation, damage evolution, optical methods Afiliacje autorów:
 15p.  
9.  Skoczeń B.^{♦}, Ustrzycka A.^{♦}, Kinetics of evolution of radiation induced microdamage in ductile materials subjected to timedependent stresses, International Journal of Plasticity, ISSN: 07496419, DOI: 10.1016/j.ijplas.2016.01.006, Vol.80, pp.86110, 2016 Streszczenie: The present paper aims at predicting evolution of radiation induced damage in the solids subjected to mechanical loads beyond the yield stress. Moreover, the evolution of radiation induced damage is combined with the evolution of mechanically induced damage within the common framework of Continuum Damage Mechanics (CDM). An additive formulation with respect to damage parameters (tensors) has been postulated. Multiscale constitutive model containing strong physical background related to the mechanism of generation of clusters of voids in the irradiated solids has been built. The model is based on the experimental estimation of concentration of lattice defects (interstitials, diinterstitials, interstitial clusters, vacancies, divacancies, vacancy clusters) in Al as a function of dpa (displacement per atom), and comprises the relevant kinetics of evolution of radiation induced damage under mechanical loads. Two kinetic laws of damage evolution were taken into account: the Rice & Tracey model and – for comparison – the Gurson model. As an application, estimation of lifetime of a cylindrical shell (coaxial target embedded in a detector of particles) subjected to combination of irradiation and mechanical loads, has been carried out. It is demonstrated that the number of cycles to failure depends strongly on the accumulation of microdamage due to irradiation. The lifetime of irradiated components has been expressed as a function of two parameters: maximum dpa and axial stress amplitude on cycle. Afiliacje autorów:
 45p.  
10.  Szuwalski K.^{♦}, Ustrzycka A.^{♦}, Mathematical and numerical modelling of large creep deformations for annular rotating disks, APPLIED MATHEMATICS AND MECHANICSENGLISH EDITION, ISSN: 02534827, DOI: 10.1007/s1048301519947, Vol.36, No.11, pp.14411448, 2015 Streszczenie: A simulation model is presented for the creep process of the rotating disks under the radial pressure in the presence of body forces. The finite strain theory is applied. The material is described by the NortonBailey law generalized for true stresses and logarithmic strains. A mathematical model is formulated in the form of a set of four partial differential equations with respect to the radial coordinate and time. Necessary initial and boundary conditions are also given. To make the model complete, a numerical procedure is proposed. The given example shows the effectiveness of this procedure. The results show that the classical finite element method cannot be used here because both the geometry and the loading (body forces) change with the time in the creep process, and the finite elements need to be redefined at each time step. Słowa kluczowe: creep process, rotating disk, finite strain theory, simulation model Afiliacje autorów:
 25p.  
11.  Szuwalski K.^{♦}, Ustrzycka A.^{♦}, Mathematical and numerical modelling of large axisymmetric creep strains and damage, APPLIED MECHANICS AND MATERIALS, ISSN: 16627482, DOI: 10.4028/www.scientific.net/AMM.784.241, Vol.784, pp.214248, 2015 Streszczenie: The paper presents a simulation model for the creep process of rotating disks under radial tensional pressure subjected to of body force. The finite strain theory is applied. The material is described by the Norton  Bailey law generalized for true stresses and logarithmic strains. The mathematical model is formulated in form of set of four partial differential equations with respect to radial coordinate and time. Necessary initial and boundary conditions are also given. To make the model complete, the numerical procedure for solving this set is proposed. What is worth noticing the classical F EM is not applicable, because not only geometry, but also loading (body forces) change in time during the creep process. It would demand redefinition of finite elements at each time step. In uniaxial problem similar model was presented in [ 4 ], but now it is developed for complex stress state. Possible different formulations of initial and boundary conditions may be found in [ 5 ]. The procedure may be useful in problems of optimal design of full disks in [ 6 ] Słowa kluczowe: creep process, rotating disks, finite strain theory, simulation model Afiliacje autorów:
 
12.  Baussan E.^{♦}, Bielski J.^{♦}, Bobeth C.^{♦}, Bouquerel E.^{♦}, Caretta O.^{♦}, Cupial P.^{♦}, Davenne T.^{♦}, Densham C.^{♦}, Dracos M.^{♦}, Fitton M.^{♦}, Gaudiot G.^{♦}, Kozien M.^{♦}, Lacny L.^{♦}, Lepers B.^{♦}, Longhin A.^{♦}, Loveridge P.^{♦}, Osswald F.^{♦}, Poussot P.^{♦}, Rooney M.^{♦}, Skoczeń B.^{♦}, Szybinski B.^{♦}, Ustrzycka A.^{♦}, Vassilopoulos N.^{♦}, Wilcox D.^{♦}, Wroblewski A.^{♦}, Wurtz J.^{♦}, Zeter V.^{♦}, Zito M.^{♦}, Neutrino super beam based on a superconducting proton linac, PHYSICAL REVIEW SPECIAL TOPICS  ACCELERATORS AND BEAMS, ISSN: 10984402, DOI: 10.1103/PhysRevSTAB.17.031001, Vol.17, No.3, pp.031001126, 2014 Streszczenie: We present a new design study of the neutrino Super Beam based on the Superconducting Proton Linac at CERN. This beam is aimed at megaton mass physics, a large water Cherenkov detector, proposed for the Laboratoire Souterrain de Modane in France, with a baseline of 130 km. The aim of this proposed facility is to study CP violation in the neutrino sector. In the study reported here, we have developed the conceptual design of the neutrino beam, especially the target and the magnetic focusing device. Indeed, this beam presents several unprecedented challenges, related to the high primary proton beam power (4 MW), the high repetition rate (50 Hz), and the low kinetic energy of the protons (4.5 GeV). The design is completed by a study of all the main components of the system, starting from the transport system to guide the beam to the target up to the beam dump. This is the first complete study of a neutrino beam based on a pebblebed target capable of standing the large heat deposition of MW class proton beams Afiliacje autorów:
 25p.  
13.  Szuwalski K.^{♦}, Ustrzycka A.^{♦}, Optimal design of full disks with respect to mixed creep rupture time, ENGINEERING STRUCTURES, ISSN: 01410296, DOI: 10.1016/j.engstruct.2013.08.001, Vol.56, pp.17281734, 2013 Streszczenie: The mixed creep rupture theory to the optimization problem for the complex stress state is used. The problem of optimal shape for the rotating full disk with respect to mixed rupture time is investigated. The mathematical model of mixed creep rupture is described by the system of five partial differential equations. Difficulty of the problem results from two types of nonlinearities: geometrical connected with the use of the finite strain theory and physical – the material is described by the Norton’s creep law, here generalized for true stresses and logarithmic strains. Additional time factor leads to subsequent complications. The parametric optimization describing the initial shape of the disk is applied. The obtained results are compared with the optimal disks with respect to ductile creep rupture time Słowa kluczowe: Mixed creep rupture, Structural optimization, Full disk Afiliacje autorów:
 40p.  
14.  Szuwalski K.^{♦}, Ustrzycka A.^{♦}, The influence of boundary conditions on optimal shape of annular disk with respect to ductile creep rupture time, EUROPEAN JOURNAL OF MECHANICS ASOLIDS, ISSN: 09977538, DOI: 10.1016/j.euromechsol.2012.05.006, Vol.37, pp.7985, 2013 Streszczenie: This article deals with the influence of boundary conditions on the optimal shape of a rotating, axisymmetric annular disk of given volume that maximizes the ductile creep rupture time. The finite strain theory and physical law in form of Norton's law generalized for true stresses and logarithmic strains are applied. The optimal shape is found using parametric optimization. The initial shape of the disk is defined by class of polynomial function. Słowa kluczowe: Boundary conditions, Optimal design, Ductile creep rupture time, Annular disk Afiliacje autorów:
 35p.  
15.  Edgecock T.R.^{♦}, Caretta O.^{♦}, Davenne T.^{♦}, Densam C.^{♦}, Fitton M.^{♦}, Kelliher D.^{♦}, Loveridge P.^{♦}, Machida S.^{♦}, Prior C.^{♦}, Rogers C.^{♦}, Rooney M.^{♦}, Thomason J.^{♦}, Wilcox D.^{♦}, Wildner E.^{♦}, Efthymiopoulos I.^{♦}, Garoby R.^{♦}, Gilardoni S.^{♦}, Hansen C.^{♦}, Benedetto E.^{♦}, Jensen E.^{♦}, Kosmicki A.^{♦}, Martini M.^{♦}, Osborne J.^{♦}, Prior G.^{♦}, Stora T.^{♦}, Melo Mendonca T.^{♦}, Vlachoudis V.^{♦}, Waaijer C.^{♦}, Cupial P.^{♦}, Chancé A.^{♦}, Longhin A.^{♦}, Payet J.^{♦}, Zito M.^{♦}, Baussan E.^{♦}, Bobeth C.^{♦}, Bouquerel E.^{♦}, Dracos M.^{♦}, Gaudiot G.^{♦}, Lepers B.^{♦}, Osswald F.^{♦}, Poussot P.^{♦}, Vassilopoulos N.^{♦}, Wurtz J.^{♦}, Zeter V.^{♦}, Bielski J.^{♦}, Kozien M.^{♦}, Lacny L.^{♦}, Skoczeń B.^{♦}, Szybinski B.^{♦}, Ustrzycka A.^{♦}, et al., High intensity neutrino oscillation facilities in Europe, PHYSICAL REVIEW SPECIAL TOPICS  ACCELERATORS AND BEAMS, ISSN: 10984402, DOI: 10.1103/PhysRevSTAB.16.021002, Vol.16, No.2, pp.021002118, 2013 Streszczenie: The EUROnu project has studied three possible options for future, high intensity neutrino oscillation facilities in Europe. The first is a Super Beam, in which the neutrinos come from the decay of pions created by bombarding targets with a 4 MW proton beam from the CERN High Power Superconducting Proton Linac. The far detector for this facility is the 500 kt MEMPHYS water Cherenkov, located in the Fréjus tunnel. The second facility is the Neutrino Factory, in which the neutrinos come from the decay of μ+ and μ− beams in a storage ring. The far detector in this case is a 100 kt magnetized iron neutrino detector at a baseline of 2000 km. The third option is a Beta Beam, in which the neutrinos come from the decay of beta emitting isotopes, in particular He6 and Ne18, also stored in a ring. The far detector is also the MEMPHYS detector in the Fréjus tunnel. EUROnu has undertaken conceptual designs of these facilities and studied the performance of the detectors. Based on this, it has determined the physics reach of each facility, in particular for the measurement of CP violation in the lepton sector, and estimated the cost of construction. These have demonstrated that the best facility to build is the Neutrino Factory. However, if a powerful proton driver is constructed for another purpose or if the MEMPHYS detector is built for astroparticle physics, the Super Beam also becomes very attractive Afiliacje autorów:
 25p.  
16.  Szuwalski K.^{♦}, Ustrzycka A.^{♦}, Optimal design of bars under nonuniform tension with respect to mixed creep rupture time, INTERNATIONAL JOURNAL OF NONLINEAR MECHANICS, ISSN: 00207462, DOI: 10.1016/j.ijnonlinmec.2012.03.002, Vol.47, pp.5560, 2012 Streszczenie: The first attempt of finding of optimal shape for bars in presence of body forces with respect to mixed creep rupture is made. For given volume of the bar, distribution of initial crosssection, ensuring the longest lifetime to mixed rupture is sought. The finite strain theory and physical law in form of Norton's law generalized for true stresses and logarithmic strains are applied. Using the method of parametric optimization, the best of linear and quadratic functions describing the initial shape of the bar are found. The shape of initial strength is corrected in a way leading to longer lifetime. Results of both approaches are compared Słowa kluczowe: Mixed rupture, Structural optimization, Nonhomogeneity Afiliacje autorów:
 35p.  
17.  Ustrzycka A.^{♦}, Optimal design of parabolic disk with respect to ductile creep rupture time, Czasopismo Techniczne. Mechanika, ISSN: 18976328, Vol.108, No.15, pp.123134, 2011 Streszczenie: Axisymmetric rotating disks optimal with respect to ductile creep rupture time are considered. Finite strain theory is applied. The material is describe d by the NortonBailey law generalized for true stresses and logarithmic strains. The set of four partial differential equations describes the creep conditions of parabolic disk. The optimal shape of the disk is found using parametric optimisation with two free parameters. The results are compared with disks of conical shape. Słowa kluczowe: finite strain theory, annular disk, ductile creep rupture time, biparametric optimization Afiliacje autorów:
 5p.  
18.  Szuwalski K.^{♦}, Ustrzycka A.^{♦}, Optimal Design of Conical Disk with Respect to Ductile Creep Rupture Time, Czasopismo Techniczne. Mechanika, ISSN: 18976328, Vol.106, No.12, pp.8595, 2009 Streszczenie: This paper presents the problem of optimal design with respect to ductile creep rupture time for rotating disk. The material is described by the Norton–Bailey nonlinear creep law, here generalized for true stresses and logarithmic strains. For complex stress states, the law of similarity of deviators, combined with the Huber–Mises–Hencky hypothesis is applied. The set of four partial differential equations describes the creep conditions of annular disk. The optimal shape of the disk is found using parametric optimisation with one free parameter. The results are compared with disks of uniform thickness. Słowa kluczowe: optimal design, annular disk, ductile creep rupture time Afiliacje autorów:
 6p.  
19.  Ustrzycka A.^{♦}, Próba interpretacji niskich chmur rodzaju Stratus na sodarogramie, PRZEGLĄD GEOFIZYCZNY, ISSN: 00332135, Vol.34, pp.227236, 2006  
20.  Walczewski J.^{♦}, Ustrzycka A.^{♦}, Biometeorologiczne aspekty wysokich temperatur powietrza lata 2003 w Krakowie, WIADOMOŚCI IMGW, ISSN: 18975143, Vol.28, pp.7379, 2005 
Lista rozdziałów w ostatnich monografiach
1. 634  Kowalewski Z.L., Ustrzycka A., Szymczak T.^{♦}, Makowska K.^{♦}, Kukla D., Plasticity, Damage and Fracture in Advanced Materials, rozdział: Damage Identification Supported by Nondestructive Testing Techniques, Springer International Publishing, pp.67117, 2020  
2. 553  Ustrzycka A., Szuwalski K.^{♦}, Kowalewski Z.L., Advances in Mechanics of Materials and Structural Analysis, rozdział: Optimal Design of Disks Under Large Creep Deformation, Springer International Publishing, 80, pp.387418, 2018  
3. 589  Kowalewski Z.L., Ustrzycka A., Encyclopedia of Continuum Mechanics, rozdział: Creep Deformation, Springer, 1, pp.110, 2018  
4. 590  Szuwalski K.^{♦}, Ustrzycka A., Encyclopedia of Continuum Mechanics, rozdział: Creep in Structures, Springer, 1, pp.111, 2018  
5. 433  Skoczeń B.^{♦}, Ustrzycka A.^{♦}, From Creep Damage Mechanics to Homogenization Methods, rozdział: Radiation Damage Evolution in Ductile Materials, Springer International Publishing, 64 of the series Advanced Structured Materials, pp.391406, 2015  
6. 434  Ustrzycka A.^{♦}, Szuwalski K.^{♦}, Computer Aided Optimum Design in Engineering XII, rozdział: Optimal design of full disks with respect to mixed creep rupture time, WIT Transactions on The Built Environment, 125, pp.8394, 2012  
7. 432  Godłowska J.^{♦}, Walczewski J.^{♦}, Tomaszewska A.M.^{♦}, Ustrzycka A.^{♦}, Metody kontroli jakości dla polskiej Państwowej Służby HydrologicznoMeteorologicznej, rozdział: Metoda uzupełniania braków danych dla stacji klimatycznych (temperatura) oparta na analizie ciągów czasowych, Wydawnictwo Instytutu Meteorologii i Gospodarki Wodnej, cz. 1, pp.125137, 2005 
Prace konferencyjne
1.  Kowalewski Z.L., Kopeć M., Ustrzycka A., Advances in Experimental Mechanics Related to Novel Materials Tested under Monotonic and Cyclic Loading Conditions, EAN, 60th Annual International Conference on Experimental Stress Analysis, 20220607/0609, Praha (CZ), pp.113, 2022 Streszczenie: This paper presents several attempts to use novel optical techniques for damage evaluation of materials subjected to either monotonic or cyclic loading and its monitoring on specimens made of the nickel superalloy and power engineering steel. Effectiveness in damage analysis of Digital Image Correlation (DIC) and Electronic Speckle Pattern Interferometry (ESPI) is compared. Słowa kluczowe: fatigue, damage, optical fullfield methods Afiliacje autorów:
 
2.  Kowalewski Z.L., Kukla D., Ustrzycka A., Evaluation of fatigue damage development supported by nondestructive technique, 10th GGP, The 10th GermanGreekPolish Symposium, 20190915/0918, Będlewo (PL), pp.12, 2019 Streszczenie: This paper presents an attempt to use the Electronic Speckle Pattern Interferometry (ESPI) and Digital Image Correlation (DIC) for damage evaluation and its monitoring on specimens made of the P91 steel and aluminide coated nickel superalloys subjected to monotonic or cyclic loading. Afiliacje autorów:
 
3.  Kowalewski Z.L., Ustrzycka A., Szymczak T.^{♦}, Fatigue Damage Analysis of Power Engineering Materials Using ESPI Method, ACAM9, 9TH Australasian Congress on Applied Mechanics, 20171127/1129, Sydney (AU), pp.18, 2017 Streszczenie: In most cases, fatigue damage has a local character and it is based on damage development leading to generation of cracks appearing around structural defects or geometrical notches. An identification of these areas and their subsequent monitoring requires a fullfield displacement measurements performed on the objects surfaces. This paper presents an attempt to use the Electronic Speckle Pattern Interferometry (ESPI) method for fatigue damage evaluation and its monitoring on specimens made of the P91 steel and aluminide coated nickel superalloys. In this work, also a development of fatigue damage was investigated using destructive and nondestructive methods in materials commonly applied in power engineering or automotive industry. The fatigue tests for a range of different materials were interrupted for selected number of cycles in order to assess a damage degree. As destructive methods the standard tensile tests were carried out after prestraining due to fatigue. Subsequently, an evolution of the selected tensile parameters was taken into account for damage identification. The ultrasonic or magnetic techniques were used as the nondestructive methods for damage evaluation. In the final step of the experimental programme microscopic observations were performed. The results show that ultrasonic and magnetic parameters can be correlated with those coming from destructive tests. It is shown that good correlation of mechanical and selected nondestructive parameters identifying damage can be achieved for the materials tested Słowa kluczowe: Fatigue, damage, optical methods, nondestructive techniques Afiliacje autorów:

Abstrakty konferencyjne
1.  Ustrzycka A., Mróz Z., Kowalewski Z.L., Kucharski S., ANALYSIS OF FATIGUE CRACK INITIATION IN CYCLIC MICROPLASTICITY REGIME, ICEM, 19th International Conference on Experimental Mechanics, 20220717/0721, Kraków (PL), No.TS1, pp.106107, 2022  
2.  Ustrzycka A., DominguezGutierrez F.J.^{♦}, Nowak M., Mulewska K.^{♦}, Azarov A.^{♦}, Kurpaska Ł.^{♦}, PHYSICAL AND MECHANICAL EFFECTS OF RADIATION DAMAGE, ICEM, 19th International Conference on Experimental Mechanics, 20220717/0721, Kraków (PL), No.TS1, pp.99100, 2022  
3.  Ustrzycka A., Physical mechanisms of irradiation creep in metals at cryogenic temperatures, NuMat2022, The Nuclear Materials Conference, 20221024/1028, Ghent (BE), pp.11, 2022 Słowa kluczowe: Creep in the proximity of absolute zero, Irradiation creep, Quantummechanical tunneling effect, Cryogenic temperatures, Low thermal energy, Peierls stress hills Afiliacje autorów:
 
4.  Ustrzycka A., Nowak M., Microdamage and fracture initiation in the materials subjected to ionirradiation, ICTAM2021, 25th International Congress of Theoretical and Applied Mechanics, 20210822/0827, Mediolan (virtual) (IT), pp.16851686, 2021  
5.  Kowalewski Z.L., Ustrzycka A., Szymczak T.^{♦}, Makowska K.^{♦}, Damage identification supported by nondestructive testing techniques, ICPDF, INTERNATIONAL SYMPOSIUM ON PLASTICITY, 20190103/0109, Panama (PA), pp.11, 2019  
6.  Ustrzycka A., Mróz Z., Kucharski S., Kowalewski Z.L., Analysis of fatigue crack initiation caused by cyclic microplasticity, PCMCMM, 4th Polish Congress of Mechanics, 23rd International Conference on Computer Methods in Mechanics, 20190908/0912, Kraków (PL), pp.11, 2019 Słowa kluczowe: Fatigue Crack Initiation, Damage Evolution, Optical Methods, Indentation Method Afiliacje autorów:
 
7.  Ustrzycka A., Mróz Z., Kowalewski Z.L., Characterization of Damage Evolution Supported by ESPI Analysis, ICEM 2018, 18TH INTERNATIONAL CONFERENCE ON EXPERIMENTAL MECHANICS, 20180701/0705, BRUKSELA (BE), No.082, pp.1, 2018  
8.  Ustrzycka A., Irradiation creep damage in nuclear reactor components, SolMech 2018, 41st SOLID MECHANICS CONFERENCE, 20180827/0831, Warszawa (PL), pp.116117, 2018  
9.  Ustrzycka A., Mróz Z., Kucharski S., Kowalewski Z.L., Analysis of fatigue crack initiation caused by cyclic microplasticity, SolMech 2018, 41st SOLID MECHANICS CONFERENCE, 20180827/0831, Warszawa (PL), pp.272273, 2018  
10.  Ustrzycka A., Kowalewski Z.L., Modelling of fatigue damage mechanisms supported by fullfield optical methods, PLASTICITY 2017, INTERNATIONAL CONFERENCE ON PLASTICITY, DAMAGE, AND FRACTURE 2017, 20170103/0109, Puerto Vallarta (MX), pp.9193, 2017 Streszczenie: The aim of this work consists a development of the GursonTvergaardNeedleman model (GNT) of damage evolution in elasticplastic materials. This model is supported by optical method of stress and strain monitoring (ESPI) for early detection, localization and monitoring of damage in materials under fatigue loading. Afiliacje autorów:
 
11.  Ustrzycka A., Kowalewski Z.L., Grzywna P., Characterization of damage evolution supported by ESPI experimental analysis, XII Konferencja „Nowe Kierunki Rozwoju Mechaniki”, 20170322/0325, Białystok  Supraśl (PL), pp.12, 2017 Streszczenie: The problem investigated in the present work concerns the damage evolution in elasticplastic materials subjected to cyclic loading. The modeling of damage mechanisms is supported by Electronic Speckle Pattern Interferometry (ESPI) apparatus using coherent laser light. Such a study can help better understanding of the damage and failure mechanism of modern structural materials for practical engineering problems. Słowa kluczowe: damage mechanisms, void growth, optical methods Afiliacje autorów:
 
12.  Pęcherski R.B., Nalepka K.T., Nalepka P.^{♦}, Sztwiertnia K.^{♦}, Kret S.^{♦}, Ustrzycka A., Assessment of the strength of nanocomposites based on interface bonding analysis, ICTAM XXIV, 24th International Congress of Theoretical and Applied Mechanics, 20160821/0826, Montréal (CA), pp.23842385, 2016 Streszczenie: Recent investigations reveal that interface bonding strength is dependent on the relative orientation of crystallites of the both phases [2]. The experimental, theoretical and computational investigations confirm this observation in the case of Cu/Al2O3 system, [3], [4]. It is shown that the statistical distribution of the values of interface strength for different relative orientations of bonded phases should be included in the phenomenological model of the damage initiation in nanocomposites. The novelty of the presented study is the combination of different experimental techniques: HRTEM, EBSD and molecular dynamics simulations with phenomenological theory of damage development in nanocomposites due to debonding at the interphase boundary [5], [6], [7]. A class of new models with the yield condition determined by one of quadric surfaces, in particular paraboloid or ellipsoid one is considered and the comparison with popular Gurson approach is discussed, [8]. Słowa kluczowe: nanocompistes, strength, interface, bonding, HRTEM, EBSD, molecular dynamics Afiliacje autorów:
 
13.  Skoczeń B.^{♦}, Ustrzycka A.^{♦}, Radiation induced damage in ductile materials subjected to timedependent stresses, ICDM2, 2nd International Conference on Damage Mechanics, 20150708/0711, Troyes (FR), pp.1, 2015  
14.  Ustrzycka A.^{♦}, Szuwalski K.^{♦}, Mathematical and numerical modelling of large axisymmetric creep strains and damage, ICDM2, 2nd International Conference on Damage Mechanics, 20150708/0711, Troyes (FR), pp.1, 2015  
15.  Ustrzycka A.^{♦}, Skoczeń B.^{♦}, Kinetics of evolution of radiation induced damage, PCMCMM 2015, 3rd Polish Congress of Mechanics and 21st Computer Methods in Mechanics, 20150908/0911, Gdańsk (PL), pp.693694, 2015  
16.  Skoczeń B.^{♦}, Ustrzycka A.^{♦}, Radiation damage evolution in ductile materials, Plasticity 2015, 21st International Symposium on Plasticity and its Current Applications, 20150104/0109, Montego Bay (JM), pp.1, 2015  
17.  Ustrzycka A.^{♦}, Skoczeń B.^{♦}, Kinetics of evolution of radiation induced microdamage in ductile materials subjected to timedependent stresses, EMMC14, European Mechanics of Materials Conference, 20140827/0829, Gothenburg (SE), pp.1, 2014  
18.  Ustrzycka A.^{♦}, Skoczeń B.^{♦}, Degradation of material properties due to evolution of radiation induced damage, SolMech 2014, 39th Solid Mechanics Conference, 20140901/0905, Zakopane (PL), pp.12, 2014  
19.  Ustrzycka A.^{♦}, Skoczeń B.^{♦}, Kinetics of evolution of radiation induced microdamage in ductile materials subjected to timedependent stresses, ICMM3, 3rd International Conference on Material Modelling incorporating 13th European Mechanics of Materials Conference, 20130908/0911, Warszawa (PL), pp.162, 2013  
20.  Szuwalski K.^{♦}, Ustrzycka A.^{♦}, Optimal design of full disks with respect to mixed creep rupture time, 12th International Conference on Optimum Design of Structures and Materials in Engineering, 20120620/0622, New Forest (GB), pp.1, 2012 Streszczenie: Structural elements working under creep conditions belong to the relatively new branches of structural optimization. Among many new possibilities of optimization criteria, which offers optimization of structures in creep conditions, the most important seems to be time to rupture. Most papers on optimal structural design are based on the brittle creep rupture theory proposed by Kachanov (small strain theory). Application of the ductile rupture theory proposed by Hoff in optimization problems are rather scare as it requires finite strain theory. For the first time it was used by Szuwalski [ 1], [2] and Szuwalski, Ustrzycka [4]. The first attempt of application the mixed theory to shape optimization was made by Ustrzycka and Szuwalski [3] for bars under nonuniform tension. Here, for the first time, the optimization problem with respect mixed rupture time, is solved for the complex stress state. Application of mixed rupture theory proposed by Kachanov takes into account: geometrical changes  diminishing of transversal dimensions resulting from large strains (as in ductile rupture) and growth of microcracks (as in brittle rupture). In present paper the problem of optimal shape with respect to mixed creep rupture time for the rotating full disk is investigated. Difficulty of the problem results from two types of nonlinearities: geometrical connected with the use of the finite strain theory and physical  the material is described by the Norton’s creep law, here generalized for true stresses and logarithmic strains. The mathematical model of mixed creep rupture is described by the system of five partial differential equations in dimensionless form. The system must be integrated with respect to material coordinate (Runge – Kutta fourth order method) and to time with variable step (Euler’s method). The parametric optimization with one, or two free parameters describing the initial shape of the disk is applied. The obtained results are compared with the disks with respect to ductile creep rupture time [2] Afiliacje autorów:
 
21.  Ustrzycka A.^{♦}, Szuwalski K.^{♦}, Optimal Design of Annular Disks With Respect to Mixed Creep Rupture Time, 8th European Mechanics Conference, 20120709/0713, Graz (AT), pp.1, 2012 Streszczenie: The problem of optimal design with respect to mixed creep rupture time is a new one. The first attempt of solution for rotation bar was made in 2010 by Szuwalski and Ustrzycka [5]. Difficulties of the problem result from physical an d geometrical nonlinearities, and were observed earlier in solution for ductile creep rupture [4], [6]. Some problems of optimal design for annular rotating disks were discussed by Farshi and Bidabadi [2]. Analytical solution for the elasticplastic stress distribution in rotating annular disks were obtained by Ç ğ allio ğ lu et al. [1] and Gun [3]. Because of those difficulties the parametric optimization was adopted. In certain class of function describing the initial shape of the disk we are looking for optimal parameters leading to the longest time to mixed rupture under assumption of constant volume. The axially symmetric annular disk rotating with constant angular velocity is loaded by centrifugal forces resulting from the own mass of the disk and additional mass uniformly distributed at the outer edge (Figure 1). The mathematical model of mixed creep rupture is described by the system of five partial differential equations in dimensionless form. n the last equation the continuity function Ψ describing damage of material was introduced. The criterion of rupture is fulfilled when Ψ takes values 0. The optimal shape among linear functions (uniparametric optimization) and quadratic functions (biparametric optimization) was found by checking some disks in earlier predicted domain of admissible solutions. The better results were obtained using biparametric optimization. The obtained results are compared with the disks with respect to ductile creep rupture time [6]. Afiliacje autorów:
