高温环境下电阻应变测试技术研究  

Research on Resistance Strain Measuring Technology in High Temperature Environment

作　　者：王成亮[1] 曹志伟[1] 武小峰 张爱茵[1] 郑毅 王智勇[1] WANG Cheng-liang;CAO Zhi-wei;WU Xiao-feng;ZHANG Ai-yin;ZHENG Yi;WANG Zhi-yong(Beijing Institute of Structure and Environment Engineering,Beijing 100076,China)

机构地区：[1]北京强度环境研究所,北京100076

出　　处：《强度与环境》2020年第3期51-56,共6页Structure & Environment Engineering

基　　金：国家自然科学基金青年科学基金项目(11802033)。

摘　　要：针对改性C/C非金属材料表面高温应变测试技术的难点,本文开展了高温下电阻应变计的粘接、测试工艺研究。通过工艺摸索、试验验证,总结出了一套适合改性C/C材料的电阻应变计粘接工艺方法。试验表明:高温条件下,粘接层应变传递正常,热输出重复性优于9%。相同载荷下获取的应变值,高温与常温相差不大。新的粘接工艺能够满足改性C/C材料表面500o C条件下的高温应变测试需求,可以为结构热试验高温应变测试提供技术支撑。Aiming at the difficulties of high temperature strain measuring technology on modified C/C nonmetallic material surface, this paper studies the bonding and measuring technology of resistance strain gage at high temperature. A set of bonding technology of resistance strain gage suitable for modified C/C material is summarized through process exploration and test verification. The results show that the strain transfer is normal and the repeatability of thermal output is better than 9% at high temperature. Under the same load, the strain values obtained at high temperature and normal temperature have little difference.The new bonding technology can meet the requirements of high temperature strain test on modified C/C material surface at 500 oC,which can provide technical support for high temperature strain test in structural thermal test.

关 键 词：高温应变 粘接工艺 热试验 

分 类 号：V416.5[航空宇航科学与技术—航空宇航推进理论与工程]