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A THEORETICAL MODEL FOR PREDICTING FATIGUE CRACK GROWTH RATES IN FIBRE‐REINFORCED METAL LAMINATES
Author(s) -
Guo YJ,
Wu XR
Publication year - 1998
Publication title -
fatigue and fracture of engineering materials and structures
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.887
H-Index - 84
eISSN - 1460-2695
pISSN - 8756-758X
DOI - 10.1046/j.1460-2695.1998.00076.x
Subject(s) - materials science , paris' law , crack closure , delamination (geology) , bridging (networking) , composite material , traction (geology) , structural engineering , fracture mechanics , engineering , computer science , geology , mechanical engineering , paleontology , computer network , subduction , tectonics
This paper is concerned with the development and application of an analytical model for predicting fatigue crack growth in fibre‐reinforced metal laminates (FRMLs). An analytical model for the distribution of bridging traction is first introduced. Based upon observations of the delamination shapes in FRMLs under fatigue loading and a model for characterizing delamination growth in FRMLs, a model for predicting crack growth rates in CCT specimens of FRMLs is developed. The model is applied to two GLARE laminates (2/1, 3/2 lay‐ups) under various cyclic stress levels and stress ratios. The predicted crack growth rates are compared with experimental data. The predicted crack growth rates agree well with the experimental results.