SGER: Thermo-Mechanical Modeling of Thin Film NiTi Microstructures

摘要- CTS-9808269 Lavine，Adrienne G. 形状记忆合金代表了一种新的和令人兴奋的材料用于执行器。 NiTi就是这样一种材料，但其实用性受到其低循环速度的限制。 薄膜NiTi可以克服这一缺点，但目前的知识水平不允许其响应的准确建模。 该建议旨在开发一个非线性的，耦合的，热机械模型来预测薄膜NiTi的响应。 拟议的工作包括：1）测量性能，2）进行实验以评估在各种环境条件下的循环响应，3）开发将准确反映其在高频下的行为的模型。

Abstract - CTS-9808269 Lavine, Adrienne G. Shape memory alloys represent a new and exciting material used by actuators. NiTi is such a material, but one whose usefulness has been limited by its low cycling speed. Thin film NiTi may overcome this disadvantage, but the current state of knowledge does not permit accurate modeling of its response. This proposal aims to develop a nonlinear, coupled, thermo-mechanical model to predict the response of thin film NiTi. The proposed work consists of: 1) measuring the properties, 2) conducting experiments to evaluate the cyclic response under a variety of environmenntal conditions, 3) developing a model which will accurately reflect its behavior at high frequencies.