Fatigue Crack Initiation and Propagation in Thick Multilayer Metallic Laminates
The objective of this study is to investigate and develop a methodology to predict fatigue crack initiation and propagation in metallic laminate structures. The fatigue crack initiation is based on strain-life approach. After a crack has initiated, Stress Intensity Factors (SIF) are obtained and the subsequent propagation is described following Paris law type equations (NASGRO). Detailed Stress-Strain distribution in each layer is obtained from FE models, including the effect of the transition from flat to slant cracks on the fatigue crack growth.
M.H Aliabadi, S. Abela, S. Baragetti, M. Guagliano and Han-Seung Lee
Z. Sharif-Khodaei et al., "Fatigue Crack Initiation and Propagation in Thick Multilayer Metallic Laminates", Key Engineering Materials, Vols. 417-418, pp. 929-932, 2010