A general analytic solution for plane strain bending under tension for strain-hardening material at large strains

2011 ◽  
Vol 81 (12) ◽  
pp. 1935-1952 ◽  
Author(s):  
Sergei Alexandrov ◽  
Ken-ichi Manabe ◽  
Tsuyoshi Furushima
1995 ◽  
Vol 52 (2-4) ◽  
pp. 338-358 ◽  
Author(s):  
R.S. Prakash ◽  
P.M. Dixit ◽  
G.K. Lal

2019 ◽  
Vol 29 ◽  
pp. 536-543
Author(s):  
Sergei Alexandrov ◽  
Elena Lyamina ◽  
Moslemi Naeini

2010 ◽  
Vol 77 (6) ◽  
Author(s):  
Sergei Alexandrov ◽  
Yeong-Maw Hwang

Finite deformation elastic-plastic analysis of plane-strain pure bending of a strain hardening sheet is presented. The general closed-form solution is proposed for an arbitrary isotropic hardening law assuming that the material is incompressible. Explicit relations are given for most popular conventional laws. The stage of unloading is included in the analysis to investigate the distribution of residual stresses and springback. The paper emphasizes the method of solution and the general qualitative features of elastic-plastic solutions rather than the study of the bending process for a specific material. In particular, it is shown that rigid-plastic solutions can be used to predict the bending moment at sufficiently large strains.


1981 ◽  
Vol 103 (1) ◽  
pp. 46-54 ◽  
Author(s):  
Akram Zahoor ◽  
Paul C. Paris

An analysis for crack instability in an elastic-plastic strain hardening material is presented which utilizes the J-integral and the tearing modulus parameter, T. A center-cracked panel of finite dimensions with Ramberg-Osgood material representation is analyzed for plane stress as well as plane strain. The analysis is applicable in the entire range of elastic-plastic loading from linear elastic to full yield. Crack instability is strongly influenced by the elastic compliance of the system, the conditions of plane stress or plane strain, and the hardening characteristics of the material. Numerical results indicate that if crack stability is ensured in a plane strain situation, then under the same circumstances a geometrically identical but plane stress panel will be stable.


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