| Partner: Hyeung-Tae Kim |
Recent publications
| 1. | Kim H.T.♦, Razakamandimby D.F.T.♦, Szilagyi V.♦, Kis Z.♦, Szentmiklosi L.♦, Glinicki M.A., Park K.♦, Reconstruction of concrete microstructure using complementarity of X-ray and neutron tomography, CEMENT AND CONCRETE RESEARCH, ISSN: 0008-8846, DOI: 10.1016/j.cemconres.2021.106540, Vol.148, pp.106540-1-12, 2021 Abstract: The concrete microstructure was successfully reconstructed using the complementarity of X-ray and neutron computed tomography (CT). Neither tomogram alone was found to be suitable to properly describe the microstructure of concrete under this study. However, by merging the information revealed by the two modalities, and using image segmentation, noise reduction, and image registration techniques we reconstruct the concrete microstructure. Void, aggregate, and cement paste phases are successfully captured down to the images' spatial resolution, even though the aggregate consists of multiple minerals. The coarse-aggregate volume fraction of the reconstructed microstructure was similar to that of the mixing proportions. Furthermore, image-based finite element analysis is performed to demonstrate the effects of microstructure on stress concentration and strain localization. Keywords:concrete microstructure, X-ray tomography, neutron tomography, image segmentation, complementarity field, image-based analysis Affiliations:
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Conference abstracts
| 1. | Golasiński K.M., Maj M., Tasaki W.♦, Pieczyska E.A., Kim H.Y.♦, Lüders-type deforma0on of Ti-25Nb shape memory alloy in tension inspected by digital image correlation and infrared thermography, ESOMAT 2024, 13th European Symposium on Martensitic Transformations, 2024-08-26/08-30, Lecco (IT), pp.042-042, 2024 | | |||||||||||||||||||||
| 2. | Golasiński K.M., Maj M., Tasaki W.♦, Pieczyska E.A., Kim H.Y.♦, TENSILE LOADING OF Ti-25Nb-0.7O SHAPE MEMORY ALLOY MONITORED BY INFRARED THERMOGRAPHY AND DIGITAL IMAGE CORRELATION, QIRT 2024, 17th Quantitative Infrared Thermography Conference, 2024-07-01/07-05, Zagreb (HR), No.5, 5-B, pp.93-93, 2024 | | |||||||||||||||||||||
| 3. | Golasiński K.M., Ranachowski Z., Brodecki A., Tasaki W.♦, Urbański L., Pieczyska E.A., Kim H.Y.♦, Acoustic emission study of Ti-25Nb and Ti-25Nb-1.0O shape memory alloys in the initial stage deformation, SolMech 2024, 43rd Solid Mechanics Conference, 2024-09-16/09-18, Wrocław (PL), pp.103-103, 2024 Keywords: Ni-free shape memory alloys, interstitials atoms, stress-induced phase transformation, acoustic emission Affiliations:
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| 4. | Golasiński K.M., Tasaki W.♦, Maj M., Pieczyska E.A., Kim H.Y.♦, EFFECT OF OXYGEN ON MECHANICAL BEHAVIOR OF Ti-25Nb BASED SHAPE MEMORY ALLOYS, ICEM, 19th International Conference on Experimental Mechanics, 2022-07-17/07-21, Kraków (PL), pp.284-285, 2022 | |