1) torsional fracture
扭转断裂
1.
The results show that the fracture was caused by the banded structure which decreased the permitted rotational moment and resulted in the torsional fracture of the bolts during installation process.
结果表明:螺栓断裂是由于其制造时产生了严重的带状组织,降低了螺栓的许可扭转力矩,导致螺栓在安装过程中发生扭转断裂。
2) torsional fatigue fracture
扭转疲劳断裂
1.
The results showed that the failure is torsional fatigue fracture,which takes place as too small knuckle and some residual tool marks,and so stress concentration leads to torsional fatigue fracture finally.
结果表明,该断裂为扭转疲劳断裂,其因是曲柄与曲柄销间的过渡圆角过小,以及圆角表面残留的切削刀痕,曲轴工作过程中此处形成应力集中,因而引发扭转疲劳断裂。
3) extension torsional fault
张扭断裂
4) tensional-shear fault
张-扭断裂
5) transpressive fault
压扭断裂
6) breakaway torque
断裂扭矩
补充资料：扭转
扭转
twist
n 1 UzhU0n扭转(t wist)轧制过程中轧件绕自身纵轴转动了一定角度而形成的缺陷。主要发生在型材和棒材上。标准规定产品不能有扭转，出现扭转必须进行矫直。产生扭转的原因有:孔型错牙，轧件进孔型不对中;轧件温度不均;机架间张力过大，拉钢严重;出孔型时因卫板不正，轧件断面上受压不均或受到倾倒力矩等。 (崔峰)
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参考词条