scholarly journals Pre-Failure Instability Behavior of Sand in Strain Path Testing Under Plane-Strain Conditions

2011 ◽  
Vol 51 (3) ◽  
pp. 423-435 ◽  
Author(s):  
D. Wanatowski ◽  
J. Chu
Keyword(s):  
Plane Strain ◽  
Strain Path ◽  
Path Testing

scholarly journals A Simple Method for Triaxial Strain Path Testing

1996 ◽  
Vol 36 (2) ◽  
pp. 129-137 ◽  
Author(s):  
Yasuhiro Shamoto ◽  
Jianmin Zhang ◽  
Tetsuo Kusukame
Keyword(s):  
Strain Path ◽  
Simple Method ◽  
Path Testing

scholarly journals Prediction of Strain Path Changing Effect on Forming Limits of AA 6111-T4 Based on A Shear Ductile Fracture Criterion

Metals ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 546
Author(s):  
Silin Luo ◽  
Gang Yang ◽  
Yanshan Lou ◽  
Yongqian Xu
Keyword(s):  
Ductile Fracture ◽  
Uniaxial Tension ◽  
Plane Strain ◽  
Strain Path ◽  
Fracture Criterion ◽  
Kinematic Hardening ◽  
Isotropic Hardening ◽  
Ductile Fracture Criterion ◽  
Plane Strain Tension ◽  
Strain Paths

Strain path changing is a phenomenon in the stamping of complex panels or multiple-step stamping processes. In this study, the influence of the strain path changing effect was investigated and assessed for an aluminum alloy of 6111-T4 with a shear ductile fracture criterion. Plastic deformation of the alloy was modeled by an anisotropic Drucker yield function with the assumption of normal anisotropy. Then the shear ductile fracture criterion was calibrated by the fracture strains at uniaxial tension, plane strain tension and equibiaxial tension under proportional loading conditions. The calibrated fracture criterion was utilized to predict forming limit curves (FLCs) of the alloy stretched under bilinear strain paths. The analyzed bilinear strain paths included biaxial tension after uniaxial tension, plane strain tension and equibiaxial tension. The predicted FLCs of bilinear strain paths were compared with experimental results. The comparison showed that the shear ductile fracture criterion could reasonably describe the effect of strain path changing on FLCs, but its accuracy was poor for some bilinear paths, such as uniaxial tension followed by equibiaxial tension and equibiaxial tension followed by plane strain tension. Kinematic hardening is suggested to substitute the isotropic hardening assumption for better prediction of FLCs with strain path changing effect.

Instability of Granular Soils under Strain Path Testing

1993 ◽  
Vol 119 (5) ◽  
pp. 874-892 ◽  
Author(s):  
J. Chu ◽  
S. ‐C. R. Lo ◽  
I. K. Lee
Keyword(s):  
Strain Path ◽  
Granular Soils ◽  
Path Testing

The Measurement of K0 by Triaxial Strain Path Testing

1991 ◽  
Vol 31 (2) ◽  
pp. 181-187 ◽  
Author(s):  
S.-C.R. Lo ◽  
J. Chu
Keyword(s):  
Strain Path ◽  
Path Testing
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