A general cyclic plasticity model taking into account yield surface distortion for multiaxial ratchetting

2004 ◽  
Vol 20 (10) ◽  
pp. 1817-1850 ◽  
Author(s):  
L VINCENT ◽  
S CALLOCH ◽  
D MARQUIS
Keyword(s):  
Yield Surface ◽  
Cyclic Plasticity ◽  
Plasticity Model ◽  
Surface Distortion ◽  
Cyclic Plasticity Model ◽  
Yield Surface Distortion

Mechanical Fatigue Simulation by Unconventional Plasticity Model

2006 ◽  
Author(s):  
Seiichiro Tsutsumi ◽  
Masahiro Toyosada ◽  
Daiki Yajima ◽  
Koji Gotoh ◽  
Koichi Hashiguchi
Keyword(s):  
Yield Surface ◽  
Deformation Behavior ◽  
Fem Analysis ◽  
Cyclic Plasticity ◽  
Surface Model ◽  
Plasticity Model ◽  
Cyclic Loading Condition ◽  
Mechanical Fatigue ◽  
Deformation Behaviors ◽  
Cyclic Plasticity Model

The deformation behavior of a structure under cyclic loading condition is simulated by using FEM analysis in which a cyclic plasticity model, so-called extended subloading surface model, is incorporated. The adopted cyclic plasticity model is categorized in the framework of the unconventional plasticity model premising that the interior of the yield surface is not a purely elastic domain. The developed FEM program does not include algorithms for both the yielding-judgment and the control of stress so as to lie on the yield surface, since the subloading surface model has the stress controlling function so that a stress approaches the yield surface automatically. In this study, several examples of FEM analysis on the cyclic deformation behaviors are presented to show the potential of the developed FEM program and an incorporated cyclic plasticity model.

Multiaxial ratcheting modeling with incorporation of a yield surface distortion model

2016 ◽  
Vol 231 (6) ◽  
pp. 979-994 ◽  
Author(s):  
H Rokhgireh ◽  
A Nayebi
Keyword(s):  
Cyclic Loading ◽  
Yield Surface ◽  
Cyclic Plasticity ◽  
Stress Strain ◽  
Distortion Model ◽  
Surface Distortion ◽  
Ratcheting Strain ◽  
Proposed Model ◽  
Strain Paths ◽  
Yield Surface Distortion

Correct determination of ratcheting strain is very important in cyclic loading. A new simple yield surface distortion model is presented and its effect on cyclic loading and ratcheting prediction is investigated in this research. Model of Baltov and Sawczuk was modified in order to be able to consider directional distortion of the yield surface. Movement of the yield surface center is modeled by Chaboche's nonlinear kinematic hardening model. Isotropic hardening was also considered. A triangular function is used and necessary cyclic plasticity relations are developed. Convexity of the proposed model is discussed and verified. Performance of the proposed model in ratcheting strain prediction is investigated in multiaxial non proportional loadings under different paths. Experimental results with stress, strain and combined stress-strain control paths are compared with the proposed model results. Incorporation of the yield surface distortion of this new model, predicts better ratcheting strain for different stress, strain and stress-strain paths.

An examination of yield surface distortion and translation

1984 ◽  
Vol 52 (1-2) ◽  
pp. 15-40 ◽  
Author(s):  
D. W. A. Rees
Keyword(s):  
Yield Surface ◽  
Surface Distortion ◽  
Yield Surface Distortion

A finite strain and rate-dependent cyclic plasticity model for metals

2021 ◽  
pp. 353-360
Author(s):  
George Z. Voyiadjis ◽  
Srinivasan M. Sivakumar
Keyword(s):  
Finite Strain ◽  
Cyclic Plasticity ◽  
Plasticity Model ◽  
Rate Dependent ◽  
Cyclic Plasticity Model
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