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Abstract
An analytical model is proposed for predicting creep and recovery behavior of a quasi-isotropic laminate having transverse cracks in transverse layers. The analysis is established on the basis of a shear lag analysis in conjunction with a viscoelasticity theory. The strain is obtained in the Laplace transformed space and its original function is calculated by means of a numerical inverse Laplace transform technique. Creep and recovery tests are conducted for a quasi-isotropic glass/epoxy (GFRP) laminate with and without transverse cracking at a room temperature. The predicted strain response is in reasonably good agreement with experimental results.