A local optimisation method for obtaining material model parameters

Citation
D. Macdougall et N. Petrinic, A local optimisation method for obtaining material model parameters, ENG COMPUTA, 17(2-3), 2000, pp. 175-188
Citations number
11
Categorie Soggetti
Engineering Mathematics
Journal title
ENGINEERING COMPUTATIONS
ISSN journal
02644401 → ACNP
Volume
17
Issue
2-3
Year of publication
2000
Pages
175 - 188
Database
ISI
SICI code
0264-4401(2000)17:2-3<175:ALOMFO>2.0.ZU;2-T
Abstract
A local optimisation method for obtaining material parameters in finite ele ment simulations has been developed The method is based on the minimisation of an error function which reflects the accuracy of a numerical prediction with respect to the results of simple specimen tests. The experimental dat a were obtained from high strain rate tensile tests on the alloy 40 per cen t titanium - 6 per cent aluminium - 4 per cent vanadium (Ti6A14V) using the tensile split-Hopkinson pressure bar The behaviour of the tensile specimen was monitored during the test rising lu;p-h-speed photography and transien t recorders Finite element simulations were performed using ABAQUS/Explicit employing the Zerilli-Armstrong material model for bce metals).