Evaluation of strain field in microstructures using micro-CT and digital volume correlation

0354592 - ÚTAM 2011 RIV GB eng J - Journal Article
Jiroušek, Ondřej - Jandejsek, Ivan - Vavřík, Daniel
Evaluation of strain field in microstructures using micro-CT and digital volume correlation.
Journal of Instrumentation. Roč. 6, January (2011), s. 1-5. ISSN 1748-0221. E-ISSN 1748-0221.
[International workshop on radiation imaging detectors /12./. Cambridge, 12.07.2010-15.07.2010]
R&D Projects: GA ČR(CZ) GAP105/10/2305
Institutional research plan: CEZ:AV0Z20710524
Keywords : inspection with x-rays * overall mechanics design * pixelated detectors and associated VLSI electronics
Subject RIV: JJ - Other Materials
Impact factor: 1.869, year: 2011
http://iopscience.iop.org/1748-0221/6/01/C01039

X-ray digital micro-tomography was employed for precise strain measurement which is essential for evaluation of the experiments with small samples of trabecular bone. X-ray Digital Volumetric Correlation (DVC) method was used to identify the three-dimensional strain field in loaded complex microstructure. DVC relies on tracking selected sample points within the threedimensional image data throughout the sequence of captured projections. In this study an improved DVC method is applied for evaluation of the strain field in trabecular bone sample subjected to compressive loading. The deformed sample was tomographically scanned using micro-focus X-ray tube and the single-photon counting silicon pixel detector Medipix2.
Permanent Link: http://hdl.handle.net/11104/0193562