June 5th - June 7th, 2024
Rome, Italy
| Daniel Kytýř |  |
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| Institute of Theoretical and Applied Mechanics, Czech Academy of Sciences | |||
 | Daniel Kytýř became a Associate Professor at the Czech Technical University in Prague in 2018. He currently serves as the head of Department of Biomechanics at the Institute of Theoretical and Applied Mechanics of the Czech Academy of Sciences. He manages several research projects in the field of advanced imaging methods and biomechanical analysis. His research interests comprise instrumentation for 4D X-ray computed tomography and three-dimensional multi-level characterization of bio-materials and biological hard tissues. His publication records comprise more than 40 scientific papers published mostly in high ranked journals in the field of mechanics and materials science. |
4D XCT for Evaluation of Structural Change and Damage Propagation |
| Last decade brings a rapid development of laboratory-based X-ray imaging techniques. Besides the conventional static visualization of material microstructure in three dimensions, X-ray computed tomography (XCT) also allows the study of time-dependent processes, hence the extensions to 4D XCT, where the fourth dimension is time, in an object influenced by various physical and chemical phenomena. It allows investigating the process of degradation and characterize deformation of broad spectrum natural and engineered materials and structures subjected to different loading regimes or ambient conditions. To evaluate displacement and strain fields or damage propagation in the entire volume of sample, subtraction tomography methodology and digital volume correlation (DVC) can be effectively employed. DVC used in conjunction with XCT offers a comprehensive and significantly more detailed approach to quantifying the internal deformation characteristics on the mesoscale and understanding the interaction of the underlying microstructure and the occurrence of localized damage in investigated materials with applications across industries, from aerospace to civil engineering. |