According to principle of damage mechanics, the evolutional law of damage in pearlite ductile cast iron has been studied under fatigue and tension loading.
利用损伤力学原理，研究了珠光体球墨铸铁在疲劳和拉伸载荷作用下的损伤演变规律。
The evolutional law of damage variable as a function of stress was obtained.
并得出了损伤变量分别随应力和应变而变化的规律。
According to the principle of damage mechanics, the evolutional law of fatigue damage of pearlite ductile cast iron was studied with double arms electrical bridge for measuring electrical resistivity.
根据损伤力学原理，用双臂电桥测量电阻的方法，研究了珠光体球墨铸铁的疲劳损伤演变规律。
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