Reliability of determining relationships of the endochronic theory of plasticity in describing complex strain paths

1989 ◽  
Vol 21 (7) ◽  
pp. 829-835
Author(s):  
N. K. Kucher ◽  
M. V. Borodii
Keyword(s):  
Endochronic Theory ◽  
Theory Of Plasticity ◽  
Strain Paths ◽  
Complex Strain

Investigation of Endochronic Constitutive Equation Subject to Plastic Strain-Controlled Axial-Torsional Deformation

1986 ◽  
Vol 108 (3) ◽  
pp. 262-269 ◽  
Author(s):  
Han C. Wu ◽  
J. C. Yao ◽  
S. C. Chu
Keyword(s):  
Plastic Strain ◽  
Theoretical Study ◽  
Test System ◽  
Torsional Deformation ◽  
Endochronic Theory ◽  
Phase Path ◽  
Strain Paths ◽  
Theoretical Results ◽  
Material Test System ◽  
Good Agreement

Plastic-strain controlled test is investigated both experimentally and theoretically. The plastic-strain control is feasible by means of computer-aided material test system. Theoretical study is made by use of the modified endochronic theory in which plastic strain is employed to define intrinsic time. Three in-phase plastic-strain paths (a pure axial path, a pure torsional path and an axial-torsional in-phase path) and two out-of-phase plastic-strain paths (small and large perturbations from the axial-torsional in-phase path) are studied. It is shown that the theory and experiment have good agreement. Furthermore, both experimental and theoretical results show that strain-hardening is enhanced by out-of-phase loading.

scholarly journals Plastic Instability in Complex Strain Paths Predicted by Advanced Constitutive Equations

2011 ◽  
Author(s):  
Marilena C. Butuc ◽  
Frédéric Barlat ◽  
José J. Gracio ◽  
Gabriela Vincze
Keyword(s):  
Constitutive Equations ◽  
Plastic Instability ◽  
Strain Paths ◽  
Complex Strain
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