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 results show that the fatigue damage variable of pearlite ductile cast iron as a function of fatigue cycle varies according to the index law.
结果表明:球墨铸铁的疲劳损伤变量随疲劳周数呈指数规律变化;
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。