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热弹性应力测定法即红外线应力测定法,这是一种最近几年才发展起来的并进入实用阶段的新式应力测定方法。早在1853年,W.Thomson就在理论上证明:承受荷载作用的固体体积的微量变化将引起微小的温度变化。1956年Biot分析了这
Thermoelastic stress measurement is the infrared stress measurement method, which is a new stress measurement method developed in recent years and entered the practical stage. As early as 1853, W. Thomson proved theoretically that a slight change in the temperature of a solid volume subjected to a load would cause a slight change in temperature. Biot analyzed this in 1956