应用光激励SMA技术实现结构损伤控制

Accomplishment of Damage Controlling by Using the Technology of Optically Activated Shape Memory Alloy

本文采用光激励SMA技术,对复合材料结构损伤实现控制.文中给出了采用的实验方法及基本原理,并以SMA埋入环氧树脂基复合材料板作为试件,给出了实验结果。结果表明:光激励SMA,可以对复合材料结构损伤弯曲变形实现控制,保证复合材料结构正常工作;而且可以通过光激励SMA时间长短对结构损伤实现主动控制,这是机敏结构的主要功能之一。本文的研究对复合材料机敏结构应用有重要意义.

Optically activated shape memory alloy (SMA) is adopted to damage controlling of the composite materials in the paper. Experimental setup and results are also given, with SMA imbedded in the composite is adopted as test object. The conclusions are shown from the experiments: optically activated SMA can ensure normal operation of the composite materials by controlling the structure deformation of the composite materials of SMA imbedded; and, by controlling the time of optical activation of SMA, the structure damage of the composite materials of SMA imbedded is actively controlled. It is one of the functions of the smart structures. Results in this research are important to the application of the smart structures of the composite materials.