| Partner: R. Gieleta |
Conference abstracts
| 1. | Sadowski T.♦, Postek E., Pietras D.♦, Gieleta R.♦, Kruszka L.♦, Non-linear dynamic and quasi-static responses of two-phase ceramic matrix and metal matrix composites subjected to compression and degradation, ICTAM2021, 25th International Congress of Theoretical and Applied Mechanics, 2021-08-22/08-27, Mediolan (virtual) (IT), pp.257-258, 2021 Abstract: The paper presents modelling and experimental testing of non-linear degradation processes developing in the two-phase ceramic matrix (CMCs) and metal matrix composites (MMCs) subjected to quasi-static and dynamic compressive loading. Modelling was performed by a multiscale approach using both: (1) analytical and (2) numerical methods and selected Representative Volume Elements (RVE) based on SEM observations of composites. Both quasi-static and dynamic experimental tests were done applying standard MTS (100 kN) servo-hydraulic machine and Split Hopkinson Pressure Bar (SHPB) stand for impact tests with loading velocities 20 – 30 m/s. As a result, we observed for CMCs in quasi-static loading failure mode by splitting of cylindrical samples, whereas for impact loading dynamic crushing process took place. Keywords:metal-matrix composites, dynamic testing, Split Hopkinson Pressure Bar, peridynamics Affiliations:
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