Identification of elasto-plastic material properties from optical full-field strain measurement

0325123 - ÚTAM 2009 RIV HU eng C - Conference Paper (international conference)
Žák, Ondřej - Jandejsek, Ivan - Jiroušek, Ondřej - Vavřík, Daniel
Identification of elasto-plastic material properties from optical full-field strain measurement.
[Zjišťování elastoplastických vlastností materialů použitím optického měření deformací.]
8th Youth Symposium on Experimental Solid Mechanics. Budapest: Scientific Society of Mechanical Engineers, 2009 - (Borbas, L.), s. 36-37. ISBN 978-963-9058-26-2.
[Youth symposium on experimental solid mechanics /8./. Gyor (HU), 20.05.2009-23.05.2009]
R&D Projects: GA ČR(CZ) GP103/07/P483
Institutional research plan: CEZ:AV0Z20710524
Keywords : FE model * elasto-plasty * full-field optical method
Subject RIV: JI - Composite Materials

Article deals with determination of properties of elasto-plastic materials. Elasto-plastic constitutive parameters of the material are identified in three following steps. The first one is full-field optical measurement of the strain field on the sample surface using a CCD camera of high-resolution.The images are then processed in Matlab Image Processing Toolbox. Displacement values and Poisson´s ratio are computed using an optical identification procedure. From the computed strains and recorded values of the applied load the stress-strain diagram is obtained.

Ve článku je popsána metoda zjišťování elastoplastických vlastností materialů použitím optického měření deformací.
Permanent Link: http://hdl.handle.net/11104/0172646