true tensile stress

The backlight photography with single sample was used to measure the true stress-strain of the ductile material after necking in tensile test.

本文采用单试样逆光拍照法对延性材料拉伸试验缩颈后的真实应力-应变进行了有效的测量。

Otherwise,by the true stress-strain test of three materials,provided true capability parameters for material database used for software analysis,and provide test data and test verification for the design and research of metal bellows.

另外,通过对3种不同材料的真实应力-应变的试验,为软件分析用的材料数据库提供了真实的材料性能参数,为金属波纹管的设计、研究提供了数据和试验验证。