June 5th - June 6th, 2019
Telč, Czech Republic
| Ivana Kumpová |
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| Institute of Theoretical and Applied Mechanics, CAS |
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| Ivana Kumpová received her master’s degree in the field of Biomedical and Ecological Engineering in 2012 at the Brno University of Technology, Faculty of Electrical Engineering with thesis concerned to the radiotherapy planning. Since July 2013 she works as a research and development specialist in the Laboratory of X-ray Tomography at the Centre Telč, Institute of Theoretical and Applied Mechanics, Czech Academy of Sciences, where she is responsible for preparation and realization of radiographic and tomographic experiments and data processing, including regular service and calibration of X-ray devices. Since February 2018 she studies Ph.D. at the Brno University of Technology, Faculty of Civil Engineering, Institute of Structural Mechanics with thesis concerned to damage and fracture analysis of advanced building materials using X-Ray imaging methods. Her research interests are high-resolution time-lapse CT, multi-energy CT and applications of micro-CT particularly in building materials, culture heritage and biology. |
4D X-ray micro-CT in fracture mechanics |
Ivana Kumpová
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The importance of understanding crack initialization, formation, propagation and branching in different materials is confirmed by the continuously expanding multidisciplinary field dealing with fracture mechanics. This knowledge is essential in numerous engineering fields and applications, and it is crucial as well for building material composition development in terms of economy and safety. Although material failures influence the behavior of building construction on the macroscopic scale, the essential processes take place at the crack nucleation and micro-crack growth level, which is not visible to the naked eye. However, experimental verification of fracture process zone development and crack growth is essential to verify fracture mechanics calculations. A unique loading device enabling four-point bending stress inside the laboratory customized μ-CT device was designed, constructed and successfully tested. Together with the simultaneous (on-the-fly) acquisition of the μ-CT projections, it is successfully used as a promising tool to complement standard mechanical tests with image information about spatial crack distribution within the inner structure during different phases of failure. |
