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TECHNICAL PAPERS

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

[+] Author and Article Information
Y. Wang, J. Pan

Department of Mechanical Engineering, The University of Michigan, Ann Arbor, MI 48109

J. Pressure Vessel Technol 123(1), 2-9 (Oct 20, 2000) (8 pages) doi:10.1115/1.1342012 History: Received October 18, 2000; Revised October 20, 2000
Copyright © 2001 by ASME
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References

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Dowling,  N. E., 1977, “Crack Growth during Low-Cycle Fatigue of Smooth Axial Specimens,” Mechanics of Crack Growth, ASTM Spec. Tech. Publ., 637, American Society of Testing and Materials, Philadelphia, PA, pp. 97–121.
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Figures

Grahic Jump Location
An edge-cracked panel subject to biaxial strains
Grahic Jump Location
(a) The finite element model for an edge-cracked panel; (b) the finite element model of the near-tip region
Grahic Jump Location
The angular variations of the near-tip stresses normalized by σ0(J/ασ0ε0r)1/n+1 at r≈2J/σ0 for n=3. (a) ξ=−1/2, (b) ξ=−1/4, (c) ξ=0, (d) ξ=1/3, (e) ξ=1.
Grahic Jump Location
The angular variations of the near-tip stresses normalized by σ0(J/ασ0ε0r)1/n+1 at r≈2J/σ0 for n=10. (a) ξ=−1/2, (b) ξ=−1/4, (c) ξ=0, (d) ξ=1/3, (e) ξ=1.
Grahic Jump Location
The angular variations of the near-tip strains normalized by αε0(J/ασ0ε0r)n/n+1 at r≈2J/σ0 for n=3. (a) ξ=−1/2, (b) ξ=−1/4, (c) ξ=0, (d) ξ=1/3, (e) ξ=1.
Grahic Jump Location
The angular variations of the near-tip strains normalized by αε0(J/ασ0ε0r)n/n+1 at r≈2J/σ0 for n=10. (a) ξ=−1/2, (b) ξ=−1/4, (c) ξ=0, (d) ξ=1/3, (e) ξ=1.
Grahic Jump Location
The computational results for constant J values, marked by symbols, for n=1, 3, 10, and 20 on the Γ-plane. For n=3, 10, and 20, the fitted solid lines are represented by Eqs. (16) and (17).

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