A procedure for specimen optimization applied to material testing in plasticity with the virtual fields method

© 2016 Author(s). The paper presents a numerical procedure to design an optimal geometry for specimens that will be used to identify the hardening behaviour of sheet metals with the virtual fields method (VFM). The procedure relies on a test simulator able to generate synthetic images similar to the ones obtained during an actual test. Digital image correlation (DIC) was used to achieve the strain field, then the constitutive parameters are identified with the VFM and compared with the reference ones. A parametric study was conducted on different types of notched specimens and an optimal configuration was identified eventually.

ISBN:9780735414273

Publication year:2016

BOF-keylabel:yes

IOF-keylabel:yes

Authors from:Higher Education