Elastic-Plastic Finite-Element Analyses of Compression Precracking and Its Influence on Subsequent Fatigue-Crack Growth

2010 ◽  
pp. 240-240-17
Author(s):  
Y. Yamada ◽  
J. C. Newman ◽  
J. C. Newman
Keyword(s):  
Finite Element ◽  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Finite Element Analyses ◽  
Elastic Plastic

Elastic-Plastic Finite-Element Analyses of Compression Precracking and Its Influence on Subsequent Fatigue-Crack Growth

2008 ◽  
Vol 5 (8) ◽  
pp. 101617 ◽  
Author(s):  
Y. Yamada ◽  
J. C. Newman ◽  
J. C. Newman ◽  
Richard Neu ◽  
Kim Wallin ◽  
...  
Keyword(s):  
Finite Element ◽  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Finite Element Analyses ◽  
Elastic Plastic

scholarly journals A Plastic Fracture Mechanics Analysis of Small Case B Fatigue Cracks Under Multiaxial Loading Conditions

1997 ◽  
Author(s):  
Y. Wang ◽  
J. Pan
Keyword(s):  
Finite Element ◽  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Fatigue Cracks ◽  
Finite Element Analyses ◽  
Growth Criterion ◽  
General Yielding ◽  
Deformation Patterns ◽  
Generalized Plane Strain

The near-tip fields of small Case B cracks in power-law hardening materials are investigated under generalized plane-strain and general yielding conditions by finite element analyses. The results for two different crack orientations are examined and compared. The results indicate that the plastic deformation patterns near the tips of the cracks of two different orientations are remarkably similar in terms of the global coordinates. The results of the J integral from the finite element analyses are used to correlate to a fatigue crack growth criterion for Case B cracks. The trends of constant ΔJ contours on the Γ-plane for two cracks of different orientations are virtually the same. Further, the trends are compared reasonably well with those of the experimental results of constant fatigue life and constant fatigue crack growth rate.

Analysis of Small Edge Cracks and Its Implications to Multiaxial Fatigue Theories

2000 ◽  
Vol 123 (1) ◽  
pp. 2-9 ◽  
Author(s):  
Y. Wang ◽  
J. Pan
Keyword(s):  
Finite Element ◽  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Multiaxial Fatigue ◽  
Finite Element Analyses ◽  
Growth Criterion ◽  
General Yielding ◽  
Edge Cracks ◽  
Generalized Plane Strain

The near-tip fields of small edge (Case B) cracks in power-law hardening materials are investigated under generalized plane strain, mixed mode, and general yielding conditions by finite element analyses. The results of the J integral from the finite element analyses are used to correlate to a fatigue crack growth criterion for Case B cracks. The trend of constant J contours on the Γ-plane is compared reasonably well with those of the experimental results of constant fatigue life and constant fatigue crack growth rate under multiaxial loading conditions.

A Plastic Fracture Mechanics Analysis of Small Case B Fatigue Cracks Under Multiaxial Loading Conditions

1998 ◽  
Vol 120 (4) ◽  
pp. 796-800 ◽  
Author(s):  
Y. Wang ◽  
J. Pan
Keyword(s):  
Finite Element ◽  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Fatigue Cracks ◽  
Finite Element Analyses ◽  
Growth Criterion ◽  
General Yielding ◽  
Deformation Patterns ◽  
Generalized Plane Strain

The near-tip fields of small Case B cracks in power law, hardening materials are investigated under generalized plane-strain and general yielding conditions by finite element analyses. The results for two different crack orientations are examined and compared. The results indicate that the plastic deformation patterns near the tips of the cracks of two different orientations are remarkably similar in terms of the global coordinates. The results of the J-integral from the finite element analyses are used to correlate to a fatigue crack growth criterion for Case B cracks. The trends of constant ΔJ-contours on the Γ-plane for two cracks of different orientations are virtually the same. Further, the trends are compared reasonably well with those of the experimental results of constant fatigue life and constant fatigue crack growth rate.

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