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Static indentation and impact behaviour of GRP pultruded sections

机译:GRP拉挤型材的静态压痕和冲击行为

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摘要

Static indentation and dropweight impact tests have been performed on three pultruded sections of glass fibre/polyester resin laminates using an instrumented test rig. Damage in the form of cracking of the lower surface has been related to permanent indentation of the contact surface. This damage relationship is independent of flexural stiffness for static loading but dependent on flexural stiffness for impact conditions. Backface cracking has been assessed in terms of residual compression and the results indicate that static loading is more severe than impact.
机译:静态压痕试验和落锤冲击试验已使用仪器测试仪在玻璃纤维/聚酯树脂层压板的三个拉挤型材上进行。下表面破裂形式的损坏与接触表面的永久压痕有关。这种损伤关系与静态载荷的挠曲刚度无关,但与冲击条件下的挠曲刚度无关。已根据残余压缩力评估了背面开裂,结果表明,静载荷比冲击更严重。

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