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Interfacial bonding between CFRP and mechanically-treated aluminum liner surfaces for risers

机译:CFRP与提升管的机械处理铝衬里表面之间的界面粘结

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The bonding between metal and carbon fiber-reinforced polymer (CFRP) composites is important in structures such as composite risers. Surface treatment of the metal is required to improve the metal-composite bonding. In this study, the effects of two mechanical surface treatment methods on the bonding between carbon/epoxy composites and aluminum are studied. The treatment methods investigated are grit blasting and grooving. Mechanical tests are performed and the test results are used with finite element simulations to study the failure and damage mechanisms at the composite-metal interface. The mechanical response and damage propagation at the metal-composite interface are modeled successfully using surface-based cohesive behavior. The finite element simulations gave insight into the way that the grooving treatment method improved the composite-metal bonding.
机译:金属和碳纤维增强聚合物(CFRP)复合材料之间的粘合在诸如复合材料立管的结构中很重要。需要金属的表面处理以改善金属复合物的结合。在这项研究中,研究了两种机械表面处理方法对碳/环氧树脂复合材料与铝之间的键合的影响。研究的处理方法是喷砂和开槽。进行机械测试,并将测试结果与有限元模拟结合使用,以研究复合金属界面的破坏和损坏机理。使用基于表面的内聚行为成功地对金属复合材料界面的机械响应和损伤传播进行了建模。有限元模拟提供了开槽处理方法改善复合金属结合的方式的见解。

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