A numerical study of the effects of overload on fatigue crack growth in plastically compressible hardening and hardening-softening-hardening solids

2020 ◽  
pp. 1-17
Author(s):  
Yash Mittal ◽  
Shushant Singh ◽  
Debashis Khan
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Numerical Study

A three-dimensional (3D) numerical study of fatigue crack growth using remeshing techniques

2010 ◽  
Vol 77 (1) ◽  
pp. 94-111 ◽  
Author(s):  
A.R. Maligno ◽  
S. Rajaratnam ◽  
S.B. Leen ◽  
E.J. Williams
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Numerical Study ◽  
Three Dimensional

scholarly journals A Numerical Study of the Effect of Isotropic Hardening Parameters on Mode I Fatigue Crack Growth

Metals ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 177
Author(s):  
M. F. Borges ◽  
F. V. Antunes ◽  
P. A. Prates ◽  
R. Branco
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Numerical Study ◽  
Isotropic Hardening ◽  
Crack Tip Opening Displacement ◽  
Opening Displacement ◽  
Mixed Hardening ◽  
Parametric Studies ◽  
Crack Tip Opening

The consideration of plastic crack tip opening displacement (CTOD, δp), as a crack driving force has given us the opportunity to predict fatigue crack growth (FCG) rate numerically, and, therefore, to develop parametric studies focused on the effect of loading, geometrical, and material parameters. The objective here is to study the effect of the isotropic hardening parameters of the Voce law on FCG, which are the isotropic saturation stress, YSat, and the isotropic saturation rate, CY. The increase of these hardening parameters causes δp to decrease. However, this effect is much more pronounced for YSat than CY. The variation is non-linear, and the rate of variation decreases with the increase of isotropic parameters. The increase of YSat increases the crack closure phenomenon. Finally, the influence of the isotropic parameters is more relevant for pure isotropic hardening than for mixed hardening.

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