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Failure analysis of composite tube hinge and optimization design

机译：复合管铰链和优化设计的故障分析

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Composite materials with intriguing mechanical properties are introduced into special deployable structure.The tube hinge in this research is investigated,which has a base tube structure with one slot.However,due to large rotation and large nonlinearity,the composite tube hinge has material failure,thus leading to deployment failure.To overcome the problem,Hashin failure criterion is used for checking the extent to which the material is damaged in folding processes.The optimal model is established base on response surface methodology,which aimed at maximizing the strain energy and minimizing the peak moment to ensure full deployment stably.The failure index during folding processes are subjected(less than 1)to avoid material damage.The length of slot L,width of slot D,diameter R and thickness T of tube hinge are chosen as the design variables.Using the non-dominated sorting genetic algorithm,the optimum parameters are obtained by solving the multi-objective optimal model.The proposed method has significance on designing novel deployable structures with high stability and reliability.
机译：具有迷恋机械性能的复合材料被引入特殊的可展开结构。研究了该研究中的管铰链，其具有一个槽的基管结构。然而，由于旋转大而大的非线性，复合管铰链具有材料故障，因此导致部署失败。克服问题，Hashin故障标准用于检查材料在折叠过程中损坏的程度。最佳模型在响应表面方法的基础上建立，旨在最大化应变能量和最小化峰值的时刻，以确保在折叠过程全面部署stably.The破坏指数经受（小于1），以避免狭缝升材料受拉破坏长度，狭槽d，直径R的宽度和铰链被选择为在管的厚度T设计变量。通过解决多目标最佳模型来获得最佳参数。提出的m Ethod对设计具有高稳定性和可靠性的新型可展开结构具有重要意义。

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