摘要
本文从原理上详细的推导出了在平面应力状态下,如何由测得的应变数值来计算主应力数值和方向。其推导过程清晰,结构严谨,并最后以45°应变花为例,给出了其推导出的最终主应力和方向的计算公式。最后给出了利用此计算公式,对某一型号的应变测试数据进行了处理的实例,具有较强的实用性。
This article particularly and completely deduced computing formula that can be used to calculate the measurment in plain stress state. The deduced course is distinct and the framework is precise. Moreover, it gave the computing formula on strain data processing of rectangular rosette. An example that used the formula to process the strain data in an important experimentation was provided in the end. It is very practical.
出处
《中国测试技术》
2006年第2期52-55,共4页
CHINA MEASUREMENT & TESTING TECHNOLOGY
关键词
平面应力
胡克定律
应变花
主应变
主应力
主方向
Plain strain
Strain rosette
Principal strain
Principal strss
Principal direction
