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在复合材料层板结构中铺设形状记忆合金丝 ,利用形状记忆合金弹性模量随相变状态的不同变化 ,受限回复时可以产生很大的回复力的特点 ,除改善和增强复合材料层板本身性能外 ,还能使复合材料层板产生弯曲 ,扭转等形状变化。如何正确有效地计算其力学特性 ,是复合材料层板形状控制以及设计和应用形状记忆合金复合材料智能结构的基础。本文在复合材料层板的有限元分析中考虑形状记忆合金丝的热力学特性以及大变形回复的影响 ,并通过实验进行分析和对比 ,得到一些有意义的结论
Laying the shape memory alloy wire in the laminate structure of the composite material utilizes the characteristics that the elastic modulus of the shape memory alloy varies with the phase change state and can generate a great restoring force under limited recovery. In addition to improving and reinforcing the composite material laminate In addition to its own performance, but also make the composite laminate bending, twisting and other shape changes. How to calculate the mechanical properties correctly and effectively is the basis for the control of the shape of composite laminates and the intelligent structure of the shape memory alloy composites. In this paper, considering the thermodynamic characteristics of shape memory alloy wire and the effect of large deformation recovery in the finite element analysis of composite laminates, some meaningful conclusions are obtained through the analysis and comparison of experiments