Premium
A New Shear Test for Sheet Metal Characterization
Author(s) -
Brosius A.,
Yin Q.,
Güner A.,
Tekkaya A.E.
Publication year - 2011
Publication title -
steel research international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.603
H-Index - 49
eISSN - 1869-344X
pISSN - 1611-3683
DOI - 10.1002/srin.201000163
Subject(s) - materials science , shear (geology) , sheet metal , direct shear test , shear stress , finite element method , structural engineering , clamping , torsion (gastropod) , plasticity , anisotropy , mechanics , composite material , mechanical engineering , engineering , physics , medicine , surgery , quantum mechanics
In order to predict plastic material behavior for sheet forming processes by finite element simulation, shear tests are useful to identify material parameters. Since the existing shear test setups have certain disadvantages, a new twin bridge torsion shear test is proposed. Stress and strain calculation is derived from the presented geometrical features. The clamping situation and the shear gauge dimensions are investigated to evaluate the quality of the obtained flow curves. It is shown that this test specimen is suitable to determine anisotropic yield behavior and to characterize prestrained specimen, for instance due to cold rolling, when the yield locus is shifted by a backstress tensor.