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http://dx.doi.org/10.5228/KSPP.2004.13.1.015

Spring-back Evaluation of Automotive Sheets Based on Combined Isotropic-Kinematic Hardening Rule  

Chongmin kim (Materials and Processes Lab., General Motors)
Michael L. Wenner (Manufacturing Systems Research Lab., General Motors)
Publication Information
Transactions of Materials Processing / v.13, no.1, 2004 , pp. 15-20 More about this Journal
Abstract
In order to evaluate spring-back behavior in automotive sheet forming processes, a panel shape idealized as a double S-rail has been investigated. After spring-back has been predicted for double S-rails using the finite element analysis, results has been compared with experimental measurements for three automotive sheets. To account for hardening behavior such as the Bauschinger and transient effects in addition to anisotropic behavior, the combined isotropic-kinematic hardening law based on the Chaboche type model and a recently developed non-quadratic anisotropic yield function have been utilized, respectively.
Keywords
Spring-Back; Bauschinger Effect; Isotropic-Kinematic Hardening; Anisotropic Yield Function;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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