破裂现象 meaning in English

fracture phenomena

After a period of vehicle ' s operation , the phenomenon of batch cracking occurs on shells of power assembly in the life - span , which shows that there are some defects in the design of power assembly
在汽车运行一定时期以后其动力总成壳体在产品的使用寿命内出现批量破裂现象，说明动力总成的壳体在设计上存在一定的问题。
In this paper , by using non - linear finite element software , ansys / ls - dyna , simulate a forming of auto fall to ground skeleton part , get the contour of the semi - finished product , forecast the change of the blank thickness and the probable wrinkling , cracking , and from the simulation of the spring - back , obtain the spring - back tendency . so , get technology parameters , which are inextricable to forming production . all these will pose great significant to production in theory and reality
本文运用非线性有限元软件ansys ls - dyna对汽车落地骨架零件进行了冲压成形的数值模拟，得出了毛坯外形，预测了成形过程中板料壁厚变化和可能出现的起皱、破裂现象，通过回弹模拟，预测了回弹趋势，获得了该类零件成形所需要的工艺参数，对实际生产具有一定的指导作用。