Mechanical Response of Stitched T300 Mat/Urethane 420 IMR Composite Laminates:Property/Orientation Dependence and Damage Evolution

摘要

This report presents experimental and analytical results of investigations on themechanical response of stitched T300 mat/urethane 420 IMR composite laminates with three different lay-up configurations. Tensile tests and short-term creep and recovery tests were conducted on the laminate coupons at various orientations. The X-ray photographic technique was adopted to detect the internal damage due to external loading history. The tensile data of laminates with