摘要
针对纤维复合材料 ,在吸附区模型的基础上 ,采用一定的桥联关系 ,用断裂力学的理论导出裂纹表面张开位移的控制方程 .采用数值解法 ,得到裂纹张开位移和桥联力的分布 .在此基础上 ,进一步计算得出了裂纹扩展的阻力曲线 ,并讨论了纤维的体积比。
From a cohesive-zone model with some bridging relation, an integral equation governing the bridging displacement distribution along the crack surface has been derived using the fracture mechanics theory for fiber-reinforced composite. Crack opening displacement and fiber-bridging stress distribution curves have been obtained through numeri nal compufation,and matrix cracking conditions and fracture resistance curves have been established through computation as well. The influences of fiber-fraction , interfacial shear stress and fiber strength on fracture resistance curves are discussed.
出处
《哈尔滨工业大学学报》
EI
CAS
CSCD
北大核心
2002年第3期348-351,共4页
Journal of Harbin Institute of Technology
