This paper introduces the type of cracks and the singularityofstress filed at crack tip.
介绍了裂纹的类型、裂纹尖端应力场的奇异性。
2
Firstly, after depicting the singularityofstress field at the top of crack, the finite element method to calculate stress intensity factor of plain fracture problems is founded.
首先,对反射裂缝尖端应力场的奇异性进行了描述,建立了平面断裂问题应力强度因子的有限单元解。
3
Thus the difficulties of discontinuous velocity gradient and the stresssingularity at the exit point are avoided, and the expense of computation is reduced.