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Mechanical characterization of fiber metal laminate based on aramid fiber reinforced polypropylene

机译：芳纶纤维增强聚丙烯纤维金属层压板的力学性能

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In this paper, the tensile properties of fiber-metal laminates (FMLs) made of a low-ductility aluminum alloy and aramid fabric/polypropylene matrix composite are evaluated. The tensile testing results show that the FMLs exhibit a more ductile behavior than that of their constituents, indicated by the increased strain to failure. The excellent adhesion between FML constituents, as confirmed by single lap joint shear test and optical microscopy, enabled a more globalized plastic deformation in the aluminum sheet of the FML leading to an increase of strain to failure, which offers an advantage in engineering structural applications where large deformations are present and strain to failure is more important than strength. The findings in this study are important from a design viewpoint of FMLs because the results show that FMLs properties, such as toughness and strain to failure, can potentially be tailored to absorb energy at different rates. (C) 2017 Elsevier Ltd. All rights reserved.
机译：在本文中，评估了由低延展性铝合金和芳纶织物/聚丙烯基复合材料制成的纤维金属层压板（FML）的拉伸性能。拉伸试验结果表明，FML比其成分具有更大的延展性，这是由断裂应变增加所表明的。单膝关节剪切试验和光学显微镜证实，FML成分之间的优异粘合性使FML铝板中的塑性变形更加全球化，从而导致应变破坏增加，这在工程结构应用中具有优势存在大的变形，而破坏应变比强度更重要。从FML的设计角度来看，本研究中的发现非常重要，因为结果表明FML的特性（例如韧性和破坏应变）可以潜在地调整为以不同的速率吸收能量。 （C）2017 Elsevier Ltd.保留所有权利。

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