The effect of post-cure straining on the fatigue properties of VIRALL laminates has been investigated experimentally. It ir found that the fatigue life is prolonged with the increase of prestrain. By analysing the variations of the inner ply stresses of aluminum sheets and vinylon/epoxy layers in VIRALL with increasing prestrain, it is shown that the influence of prestrain on fatigue properties is attributed to the changes in the states of the inner ply stress in aluminum sheets and vinylon/epoxy layers. (C) 1996 Elsevier Science Limited
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