Fatigue growth of matrix cracks in the transverse direction of CFRP laminates
Source abstract
Abstract
The damage process of matrix cracks in cross-ply and quasi-isotropic toughened CFRP laminates under cyclic loading is studied. Detailed observations of both crack density and crack length in coupon specimens suggest that there is a three-stage process comprising of edge crack initiation, edge crack growth, and crack propagation across the width in quasi-isotropic laminates, whereas simultaneous transverse crack initiation and propagation in the width direction takes place in cross-ply laminates. Energy release rates associated with crack propagation in the width direction are derived using the two-dimensional analytical model. It is shown that transverse crack propagation behavior can be estimated using the power law of the associated energy release rates.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Mechanical Behavior of Composites · Fatigue and fracture mechanics · Composite Material Mechanics
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References (28)
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