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Title: Study of the strain rate effect on cold-reduced carbon steel and aluminium alloy with numerical simulation
Authors: Wang, L
Lee, T
Chan, L 
Keywords: Numerical simulation
Strain path
Strain rate effect
Issue Date: 2006
Publisher: Trans Tech Publications Ltd
Source: Materials science forum, Dec., 2006, v. 532-533, p. 973-976 How to cite?
Journal: Materials science forum 
Abstract: In this paper, the effect of strain rate has been considered in the simulation of forming process with a simple form combined into the material law. Quite a few researchers have proposed various hardening laws and strain rate functions to describe the material tensile curve. In this study, the strain rate model Cowper-Symonds is used with anisotropic elasto-plastic material law in the simulation process. The strain path evolution of certain elements, when the strain rate is considered and not, is compared. Two sheet materials, Cold-reduced Carbon Steel (SPCC) JIS G3141 and Aluminum alloy 6112 are used in this study. Two yield criteria, Hill 48 and Hill 90, are applied respectively to improve the accuracy of simulation result. They show different performance when strain rate effect is considered. Strain path of the elements in the fracture risk area of SPCC (JIS G3141) varies much when the strain rate material law is used. There is only little difference of the strain distribution of Al 6112 when the strain rate effect is included and excluded in the material law. The simulation results of material SPCC under two conditions indicate that the strain rate should be considered if the material is the rate-sensitive material, which provides more accurate simulation results.
Description: 12th International Manufacturing Conference in China, September 21-23, 2006, Xi'an, China
ISBN: 978-0-87849-421-7
ISSN: 0255-5476
EISSN: 1662-9752
DOI: 10.4028/
Appears in Collections:Conference Paper

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