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Recent advantages in fatigue crack growth modeling

Publication ,  Journal Article
Sehitoglu, H; Gall, K; Garcia, AM
Published in: International Journal of Fracture
1996

Recent advances in our understanding of fatigue crack growth processes and respective crack growth modeling techniques are reviewed. Much of the observed experimental behavior, can be explained based on crack closure concepts. Both Dugdale based models and finite element techniques have been utilized. However, so far neither approach has accounted for crystallographic slip effects, grain orientation effects, or microstructural barriers. A model for crack closure with two microscopic crystallographic slip directions is used to model microscopic cracks. The model predicts variations in closure levels as the orientations of the two slip directions, with respect to the crack growth direction, are changed. In addition, a solution is proposed for the asperity micro-contact problem through a unique roughness induced closure model using a statistical description of asperity heights, asperity densities, and material flow properties.

Duke Scholars

Published In

International Journal of Fracture

Publication Date

1996

Volume

80

Issue

2-3

Start / End Page

165 / 192

Related Subject Headings

  • Mechanical Engineering & Transports
  • 0913 Mechanical Engineering
  • 0912 Materials Engineering
  • 0905 Civil Engineering
 

Citation

APA
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ICMJE
MLA
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Sehitoglu, H., Gall, K., & Garcia, A. M. (1996). Recent advantages in fatigue crack growth modeling. International Journal of Fracture, 80(2–3), 165–192.
Sehitoglu, H., K. Gall, and A. M. Garcia. “Recent advantages in fatigue crack growth modeling.” International Journal of Fracture 80, no. 2–3 (1996): 165–92.
Sehitoglu H, Gall K, Garcia AM. Recent advantages in fatigue crack growth modeling. International Journal of Fracture. 1996;80(2–3):165–92.
Sehitoglu, H., et al. “Recent advantages in fatigue crack growth modeling.” International Journal of Fracture, vol. 80, no. 2–3, 1996, pp. 165–92.
Sehitoglu H, Gall K, Garcia AM. Recent advantages in fatigue crack growth modeling. International Journal of Fracture. 1996;80(2–3):165–192.

Published In

International Journal of Fracture

Publication Date

1996

Volume

80

Issue

2-3

Start / End Page

165 / 192

Related Subject Headings

  • Mechanical Engineering & Transports
  • 0913 Mechanical Engineering
  • 0912 Materials Engineering
  • 0905 Civil Engineering