It is found that the big side knuckle region always encounters the big SIF of primary and secondary stress within the calculated parameter,however,it encounters the big...

• 一次加二次应力的应力强度水平系数总是大端转角过渡区较大。而局部薄膜应力的应力强度水平系数当大小端直径之比较小时,小端较大;当大小端直径之比较大时,大端较大。