Only if this short crack extends long enough and blunted wide enough, can it affect the principal crack extension and the distribution of stress and plastic strain.
只有小裂纹扩展到足够长并钝化到足够宽，才能够影响主裂纹的扩展及其前端应力、应变的分布。
2
The kinematically admissible velocity field and strain rate field for extension forging of rounds have been established.
建立了圆坯拔长锻造的运动许可速度场与应变速率场。
3
So, in the process of strain-measuring, when we apply the normal lever extension meter, it is confined by conditions, such as the install pattern, measurement standard and so on.