Stress field near interface crack tip of double dissimilar orthotropic composite materials

摘要

In this paper,double dissimilar orthotropic composite materials interfacial crack is studied by constructing new stress functions and employing the method of com- posite material complex.When the characteristic equations'discriminants△_1>0 and△_2>0,the theoretical formula of the stress field and the displacement field near the mode I interface crack tip are derived,indicating that there is no oscillation and interembedding between the interfaces of the crack.