摘要
根据裂纹闭合单位面积所做的功等于裂纹扩展单位面积所释放的能量的关系来对Ⅱ型裂纹的扩展进行理论分析,推导出了Ⅱ型裂纹的G,K关系,且在ANSYS中建立有限元模型对Ⅱ型应力强度因子进行计算并与强度因子手册中的公式进行验证。
This paper, based on the relationship that the crack closure work done in unit area should be equal to the en- ergy released with the crack growth per unit area, make the theoretical analysis for type Ⅱ crack, and deduce the rela- tionship between G and K of the type Ⅱ crack. Simuhanously, the finite element model is established in ANSYS to cal- culate and verify the stress intensity factor of the type Ⅱ crack.
出处
《水利与建筑工程学报》
2013年第1期184-186,共3页
Journal of Water Resources and Architectural Engineering
关键词
Ⅱ型裂纹
有限元模型
应力强度因子
应变能释放率
type Ⅱ crack
finite element model
stress intensity factor
strain energy releasing rate
