形状记忆合金板双向形状记忆效应训练

Training of a shape memory alloy platewith two-way shape memory effect

提出了一种适用于固定边界条件下的三维形状记忆合金结构训练方法,并完成形状记忆合金圆板的双向形状记忆效应训练。经过约20次训练,形状记忆合金板双向形状记忆效应趋于稳定。经训练后的形状记忆合金板具有高温变平低温鼓起的特性。双向形状记忆效应测试结果表明,所训练的形状记忆合金板在相变-逆相变过程中能够实现约0.75 mm的可恢复挠度变形,约为变形区半径的1.88%。最后,对外载荷条件下形状记忆合金板热力学响应进行了分析。

In this paper,a three-dimensional shape memory alloy structure training method suitable for fixed boundary conditions is proposed,and the bidirectional shape memory effect training of shape memory alloy circular plate is completed.After about 20 times of training,the bidirectional shape memory effect of shape memory alloy plate tends to be stable.The trained shape memory alloy plate has the characteristics of flattening at high temperature and bulging at low temperature.The test results of two-way shape memory effect show that the trained shape memory alloy plate can realize the recoverable deflection deformation of about 0.75 mm in the process of transformation-inverse transformation,which is about 1.88%of the radius of deformation zone.Finally,the thermodynamic response of shape memory alloy plate under external load is analyzed.