A method to calculate the true stress and true strain for tensile test of plastic

被引:5
作者
Du, XW [1 ]
Sun, G
Nie, C
机构
[1] Shanghai Jiao Tong Univ, Dept Engn Mech, Shanghai 200030, Peoples R China
[2] GPDaikyo Corp, Shanghai Off, Shanghai 200336, Peoples R China
来源
ADVANCES IN ENGINEERING PLASTICITY AND ITS APPLICATIONS, PTS 1 AND 2 | 2004年 / 274-276卷
关键词
engineering plastic; multi-phases assembling method; necking; true stress-true strain curve; load-elongation curve;
D O I
10.4028/www.scientific.net/KEM.274-276.1077
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The multi-phases assembling method is proposed to calculate the true stress - true strain relation for plastic in standard tensile test. By this method, the measured load-elongation curve is divided into three phases. According to characteristic of each phase, the true stress-true strain relation is obtained by distinct analyzing method. The true stress-true strain curve for the whole test is extracted from the data of load-elongation record and assembled. Results from experiments of four plastics verify the efficiency of this method.
引用
收藏
页码:1077 / 1082
页数:6
相关论文
共 6 条
[1]   Numerical analysis and modeling of large deformation and necking behavior of tensile specimens [J].
Brunig, M .
FINITE ELEMENTS IN ANALYSIS AND DESIGN, 1998, 28 (04) :303-319
[2]  
LUO HW, 1998, J STEEL RES, V10, P61
[3]   A notched cross weld tensile testing method for determining true stress-strain curves for weldments [J].
Zhang, ZL ;
Hauge, M ;
Thaulow, C ;
Odegård, J .
ENGINEERING FRACTURE MECHANICS, 2002, 69 (03) :353-366
[4]   A study on determining true stress-strain curve for anisotropic materials with rectangular tensile bars [J].
Zhang, ZL ;
Odegard, J ;
Sovik, OP ;
Thaulow, C .
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 2001, 38 (26-27) :4489-4505
[5]   Determining material true stress-strain curve from tensile specimens with rectangular cross-section [J].
Zhang, ZL ;
Hauge, M ;
Odegård, J ;
Thaulow, C .
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 1999, 36 (23) :3497-3516
[6]   Determining true stress-strain curve for isotropic and anisotropic materials with rectangular tensile bars:: method and verifications [J].
Zhang, ZL ;
Odegård, J ;
Sovik, OP .
COMPUTATIONAL MATERIALS SCIENCE, 2001, 20 (01) :77-85