Propagation of non-planar fatigue cracks: Experimental observations and numerical simulations

William T. Riddell, Anthony R. Ingraffea, Paul A. Wawrzynek

Research output: Contribution to journalConference articlepeer-review


Two types of mixed-mode fatigue crack growth tests are described. Experimental observations of non-planar fatigue crack growth are compared with numerical predictions from the computer code, FRANC3D. In these analyses, the evolution of crack shape is not assumed a priori. The code predicts evolving fatigue crack shapes and fatigue crack growth rates based on linear-elastic mixed-mode stress-intensity factor distributions along the evolving crack fronts. The simulations are shown to result in accurate crack front shape predictions, and to predict overall fatigue crack life in a reasonable and/or conservative manner.

Original languageEnglish (US)
Pages (from-to)573-597
Number of pages25
JournalASTM Special Technical Publication
Issue number1417
StatePublished - Jan 1 2002
Externally publishedYes
EventThe Thirty Third National Symposium on Fatigue and Fractuer Mechanics - Moran, WY, United States
Duration: Jun 25 2001Jun 29 2001

All Science Journal Classification (ASJC) codes

  • Engineering(all)


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