【摘要】 特殊铺层层合板所具有的双稳态特性为双稳态可变形结构的研制开辟了广阔空间．本文提出了一种用形状记忆合金(Shape Memory Alloys, SMA)片状驱动器控制双稳态复合材料层合板完成稳态跳变的方案，以铺层[02/902]的非对称层合板为例，对四种SMA片驱动器布设方案控制该双稳态板完成稳态跳变的特性进行了模拟，分析中考虑反复相变对SMA一维Brinson唯象本构进行了修正，编写了Umat子程序，经实验表明预测结果具有足够的精度，而合适的SMA驱动器粘贴位置不仅可有效控制跳变，且在激励后结构不会发生扭曲变形，相关成果是进一步开发基于SMA片状驱动器可变形双稳态复合材料飞行器结构的重要基础．更多还原

【Abstract】 The bistable characteristics of laminates with special laying sequence opened up a broad space for the development of bistable morphing structures. In this paper, a scheme of using SMA sheet actuator to control bistable composite laminates to complete snap through was proposed. Taking the [02/902] asymmetric laminate as an example, the characteristics of four SMA sheet actuator layout schemes to control the bistable composite laminates to complete snap through were simulated. In the analysis,the repeated phase transition effect was considered to modify the one-dimensional Brinson phenomenological constitutive model of SMA and a UMAT subroutine was developed. The experimental results show that the predicted results have sufficient accuracy. An appropriate selection of the bonding position of SMA actuator can not only effectively control the snap through, but also prevent the structure from experiencing a twisted deformation after excitation. The related achievements can lay an important foundation for the further development of bistable morphing composite aircraft structure based on SMA sheet actuators.更多还原