PLASTIC DEFORMATION BEHAVIOR OF HIGH STRENGTH STEEL SHEET UNDER NON-PROPORTIONAL LOADING AND ITS MODELING

被引：0
|
作者：
Uemori, Takeshi [1 ]
Mito, Yuji [2 ]
Sumikawa, Satoshi [2 ]
Hino, Ryutaro [2 ]
Yoshida, Fusahito [2 ]
Naka, Tetsuo [3 ]
机构：
[1] Kindai Univ, Sch Engn, Dept Mech Engn, 1 Takayaumenobe, Higashihiroshima 7392116, Japan
[2] Hiroshima Univ, Fac Engn, Dept Mech Syst Engn, Higashihiroshima 7398527, Japan
[3] Yuge Natl Coll Maritime Technol, Kamijima, Ehime 7942593, Japan
来源：
ENGINEERING PLASTICITY AND ITS APPLICATIONS: FROM NANOSCALE TO MACROSCALE | 2009年
关键词：
Kinematic hardening model; high tensile strength steel sheet; non-proportional loading; constitutive model; yield surface; yield function; STRAIN CYCLIC PLASTICITY;
D O I：
10.1142/9789814261579_0004
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This paper deals with plastic deformations of a high tensile strength steel sheet (HTSS sheet) under biaxial stress condition including strain path. Using a cruciform specimen of a HTSS sheet of 780MPa-TS, experiments under proportional and non-proportional loadings were investigated. Numerical simulations of stress-strain responses for several strain paths after biaxial stretching were conducted using a large-strain cyclic plasticity model (Yoshida-Uemori model). The results of numerical simulation agrees well the corresponding experimental results, which is attributed to the accurate modeling of the backstress evolution of the anisotropic yield function.
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页码：22 / +
页数：2
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