Journal
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
Volume 156, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesa.2022.106862
Keywords
C. Cohesive interface modelling; B Fatigue; B. Delamination; A. Polymer-matrix composites (PMCs)
Ask authors/readers for more resources
A computationally efficient fatigue analysis methodology is proposed that can predict the initiation and propagation of cracks using a cycle jump approach and a unified local fatigue cohesive zone model. The results of verification and validation experiments indicate that this method can reproduce fatigue damage initiation and evolution for different configurations and load combinations.
A computationally efficient fatigue analysis methodology is proposed that uses a cycle jump approach to drive the accumulation of fatigue damage and a unified local fatigue cohesive zone model that can predict the initiation and propagation of cracks using a reduced set of model parameters. A new definition of the stress ratio is proposed for general loading conditions, which include negative load ratios, unsynchronized loads, and problems where the mode mixity changes during a cycle. The cycle jump procedure was verified by performing analyses of standard double cantilever beam and mixed mode bending tests. Then, the model was validated by performing analyses of double notch shear tests and initiation of transverse matrix cracking in a [0/90] laminate using models that account for residual thermal stresses. The results indicate that the analysis methodology can reproduce experimentally measured fatigue damage initiation and evolution for a variety of different configurations and load combinations.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available