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.
The modulus of SMAs varied with the stage of phase transformation and it brought large recovery stress of restrained recovery. By laying Shape Memory Alloys(SMAs) wires in the composite material laminate,the property of the composite laminate was improved and strengthened. Besides, bending and torsion of the laminate can be found and governed.How to calculate the mechanics behavior correctly is the base of shape control and design and applying of shape memory alloy composite material structures.The nonlinear finite element analysis of the composite laminate includes the thermodynamic behavior and large deformation recovery of the SMAs wires,and by comparing the experimental result with the analytical result, some significant conclusion was obtained.
参考文献
| [1] | 杨杰, 吴月华. 形状记忆合金及其应用[M].合肥: 中国科学技术大学出版社,1993. |
| [2] | 张学仁, 聂景绪, 杜彦良. 主动控制裂纹的智能复合构件的有限元分析[J]. 复合材料学报,1999,16(2):147-151. |
| [3] | 叶宁, 郦正能. 形状记忆合金复合材料层板的非线性有限元分析[J]. 北京航空航天大学学报,2001,27(1):73-75. |
| [4] | Liang C, Rogers C A. One-dimensional thermomechanical constitutive relations for shape memory materials[P].AIAA-90-1027-CP,16-28. |
| [5] | Bathe K J. Finite element procedures in engineering analysis[M]. Englewood Cliffs:Prentice-Hall,1982. |
| [6] | Reddy J N, Chandrashekhara K. Nonlinear analysis of laminated shells including transverse shear strains[J]. AIAA Journal,1985,23(3): 440-441. |
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