摘要
利用当量直线裂纹扩展法研究复合型裂纹的能量释放率及相应的断裂判据。并以解析法和有限元法研究单向拉伸板的斜裂纹问题。所得相关曲线及开裂角和实验结果吻合得较好。
The energy release rate and failure criterion for mixed mode are investigated by means of the method of equivalent linear crack extension.As a numerical example,the slanting crack in uniaxially tensile plate is considered.As compared with the experimental results,the analytical solution and finite element results obtained on the interaction curve and angle of cracking are satisfactory.
出处
《北京航空航天大学学报》
EI
CAS
CSCD
北大核心
1990年第3期43-49,共7页
Journal of Beijing University of Aeronautics and Astronautics
关键词
裂纹
能量释放率
断裂判据
开裂角
energy release rate,failure criterion,interaction curve,angle of cracking.
