Abstract

Effect of moisture on the energy absorption characteristics of two kinds of glass cloth/epoxy composite tubes has been investigated. One type of tube was reinforced with glass cloth treated with aminosilane coupling agent and the other type of tube was reinforced with glass cloth treated with acrylsilane coupling agent. The study has involved quasi-static, axial crushing of glass cloth/epoxy tubes preconditioned by total immersion in distilled water at 80°C for different periods ranging from 100 h to 3000 h. The changes in the crush zone morphology and the energy absorption capability have been examined. Comparisons were drawn with moisture-induced variations in mechanical properties and frictional forces.

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