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Failure of Blind Riveted Joint of Carbon Laminates

机译:碳层压板盲铆接失效

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This paper deals with the experimental and numerical investigations of mechanical behavior of the single-lap joint of laminates consisting of TENAX-J IMS60 E13 24K carbon fibers and MSG L285 epoxy resin. TIBULB high-strength blind rivets having a diameter of 4.8 mm and 6.4 mm were used for the joint. Tension tests were performed to investigate the material parameters of the laminate and the clearance effect. The rivet clamping force was evaluated based on a torsion test. The finite element method model of the joint using non-linear shear stress-strain relations of a lamina and using Puck's failure criterion for the 3D stress state was created. The model was used to analyze the failure of the joint under quasi-static loading. The maximum number of loading cycles leading to joint failure and the decrease in the joint load capacity and stiffness due to the cyclic loading were investigated.
机译:本文研究了由TENAX-J IMS60 E13 24K碳纤维和MSG L285环氧树脂组成的层压板的单搭接接头力学性能的实验和数值研究。连接处使用了直径为4.8 mm和6.4 mm的TIBULB高强度盲铆钉。进行拉伸测试以研究层压板的材料参数和清除效果。基于扭转试验评估铆钉夹紧力。使用薄片的非线性剪切应力-应变关系,并使用Puck的3D应力状态破坏准则,建立了有限元方法模型。该模型用于分析准静态载荷作用下的接头失效。研究了导致关节失效的最大载荷循环次数,以及由于周期性载荷而导致的关节载荷能力和刚度下降。

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