Fatigue Crack Growth In Fibre Reinforced Metal Laminates
Price
Free (open access)
Transaction
Volume
26
Pages
10
Published
2000
Size
1,019 kb
Paper DOI
10.2495/DM000301
Copyright
WIT Press
Author(s)
K. Brown & A. Young
Abstract
In order to increase understanding of the mechanisms involved in the fatigue crack growth behaviour of fibre reinforced metal laminates (FRMLs), experimental and theoretical studies have been carried out at DERA. A wide variety of FRMLs has been investigated, including ARALL 1,2,3 and 4 laminates with unidirectional aramid fibres and GLARE 1,2,3 and 4 laminates with unidirectional and cross-plied glass fibres. The FRMLs had from two to five metal layers, each 0.2mm or 0.3mm thick. Fatigue crack growth rates were measured for constant amplitude loading at different stress levels and R-ratios. Damage in the laminates, including delamination and broken fibres, was measured fractographically. SPATE scans were also used to monitor delamination. A three-dimensional FE model has been developed specifically for stress analysis of FRMLs
Keywords