The measurement of the value and distribution for micro-residualstress in materials was crucial and difficult for micro-fracture theory.
测量材料微区残余应力的大小和分布,对于研究微观断裂机制具有非常重要的意义,一直是研究的热点和难点。
2
Experiment results showed that the fracture of the nut was originated from a variety of macro defects, micro defects both by founding and machining, as well as high residualstress.
结果表明,螺母存在多种铸造及加工的宏观、微观观察缺陷和残余应力过高是螺母断裂失效的原因。
3
The intensities of MAE have been measured as a function of the stress during loading and unloading, which can be used to evaluate the micro-damage and residualstress in ferromagnetic materials.