摘要
利用能量释放率方法与计及剪切变形的工程梁理论导出了一个计及根部变形效应的ＤＣＢ试样应力强度因子的便于应用的改进型公式。
An improved formula of stress intensity factors of DCB specimens is derived to consider root effect of deformation provided by the uncracked portion of the test piece by means of the modified beam theory with consideration of shear deformation and energy release rate method.Furthermore,a review about the relevant conventional formula is carried out.
出处
《北京航空航天大学学报》
EI
CAS
CSCD
北大核心
1996年第6期717-721,共5页
Journal of Beijing University of Aeronautics and Astronautics
关键词
裂纹扩展力
梁
应力强度因子
结构材料
crack extension force
beams(supports)
stress intensity factors
construction materials
DCB specimen
root effect
energy release rate
