A Simple Crack Closure Model for Prediction of Fatigue Crack Growth Rates Under Variable-Amplitude Loading
- 1 January 1981
- book chapter
- Published by ASTM International
Abstract
A model for the prediction of growth rates of fatigue cracks in aluminium alloys is presented. The model is based on an approximate description of the crack closure behavior and can be used to predict effects of crack growth acceleration and retardation observed experimentally under variable-amplitude loading. A computer program was developed for analysis of fatigue crack growth. It was used to analyze the effect of certain parameter variations in a flight simulation load spectrum on the crack growth rate. For 7075-T6 thin sheet material the results are compared with experimental data.Keywords
This publication has 8 references indexed in Scilit:
- Yielding of steel sheets containing slitsPublished by Elsevier ,2002
- Analysis of Closure in Fatigue Crack GrowthJournal of Applied Mechanics, 1978
- Finite-Element Analysis of Crack Growth Under Monotonic and Cyclic LoadingPublished by ASTM International ,1977
- Spectrum Crack Growth Prediction Method Based on Crack Surface Displacement and Contact AnalysesPublished by ASTM International ,1976
- Observations on the Prediction of Fatigue Crack Growth Propagation Under Variable-Amplitude LoadingPublished by ASTM International ,1976
- Equivalent Constant-Amplitude Concept for Crack Growth Under Spectrum LoadingPublished by ASTM International ,1976
- Cyclic analysis of a propagating crack and its correlation with fatigue crack growthEngineering Fracture Mechanics, 1975
- The Significance of Fatigue Crack ClosurePublished by ASTM International ,1971