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Scarf Joints of Composite Materials: Testing and Analysis

机译:复合材料围巾接头:测试与分析

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The objective of this study is to develop a reliable computational model in order to investigate joint strengths of scarf joint configurations constructed from carbon-fiber and glass-fiber woven fabric laminates with different material combinations like glass/glass, glass/carbon, carbon/glass, and carbon/carbon under various loading conditions such as axial, bending moment and shear loading. Both experimental and computational studies are conducted. For the experimental study, specimens made of hybrid scarf joints using carbon-fiber and glass-fiber woven fabrics are tested under compressive loadings to determine their joint failure strengths. Computational models are then developed using the discrete resin layer model along with fracture mechanics and virtual crack closure techniques. The numerical models are validated against the experimental data. The validate models are used to predict the joint strengths under different loading conditions such as axial, shear, and bending moment loadings.
机译:这项研究的目的是建立一个可靠的计算模型,以研究由碳纤维和玻璃纤维机织织物层压材料制成的围巾接头构型的接头强度,这些层压材料具有不同的材料组合,例如玻璃/玻璃,玻璃/碳,碳/玻璃,以及在各种载荷条件下(例如轴向载荷,弯矩载荷和剪切载荷)下的碳/碳。进行了实验研究和计算研究。在实验研究中,使用碳纤维和玻璃纤维机织织物的混合围巾接头制成的样品在压缩载荷下进行测试,以确定其接头破坏强度。然后,使用离散树脂层模型以及断裂力学和虚拟裂缝闭合技术来开发计算模型。数值模型针对实验数据进行了验证。验证模型用于预测不同载荷条件(例如轴向载荷,剪切载荷和弯矩载荷)下的接头强度。

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