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Modeling of Bearing Failure in Bolted Composite Joints

机译：螺栓复合关节轴承失效的建模

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摘要

A modeling of bearing failure has been developed using general-purpose FEM code ABAQUS in the bolted composite joints. The fundamental approach consists of contact problem at the pin/hole interface, progressive damage, large deformation problem and material nonlinear problem. A complex approach based on a nonlinear shear elasticity theory of Hahn & Tsai fused with a continuum damage mechanics (CDM) approach can be also utilized to represent the material nonlinear behavior during loading. The damage accumulation criteria using the hybrid method based on Hashin and Yamada-Sun's failure criteria are adopted, and the stress redistribution analysis using a degradation model for the damaged ply is performed.
机译：在螺栓复合关节中使用通用FEM代码ABAQUS开发了轴承故障的建模。基本方法包括在销/孔界面，渐进损伤，大变形问题和材料非线性问题的接触问题。基于与连续损伤力学（CDM）方法的Hahn＆Tsai的非线性剪切弹性理论的复杂方法也可用于代表装载过程中的材料非线性行为。采用了使用基于Hashin和山田 - 太阳故障标准的混合方法的损伤累积标准，并进行了使用损坏层的降解模型的应力再分配分析。

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