Papers by Author: Shao Qin Zhang

Paper TitlePage

Authors: Jun Lin Li, Shao Qin Zhang
Abstract: The problem of orthotropic bi-materials semi-infinite interfacial crack was studied, by constructing new stress functions and using composite complex functions methods of material fracture on plane. It overcame oscillation singularity of stress and existing theoretical solution. When secular equations’ discriminations are and , the theoretical solutions to the stress fields and the displacements fields of semi-infinite interface crack between two dissimilar orthotropic composite materials near the crack tip are obtained.
429
Authors: Shao Qin Zhang, Jun Lin Li, Wei Yang Yang
Abstract: A newly developed Z-fracture criterion is introduced in this paper by introducing the new concepts of in-plane dilatational strain energy density factor, in-plane average strain and reciprocal function. The Z-fracture criterion is applied to predict the mixed mode crack propagating direction in carbon fiber reinforced plastic (CRP) plate. The test results show that the Z-fracture criterion can be successfully used to predict the mixed mode crack propagation direction in CRP plate.
271
Authors: Jun Lin Li, Shao Qin Zhang
Abstract: The problem of orthotropic composite materials semi-infinite interfacial crack was studied, by constructing new stress functions and employing the method of composite material complex. In the case that the secular equations’ discriminates the and theoretical solutions to the stress fields and the displacement fields near semi-infinite interface crack tip without oscillation and inter-embedding between the interfaces of the crack are obtained, a comparison with finite element example was done to verify the correction of theoretical solution.
1223
Authors: Shao Qin Zhang, He Sheng Yao, Jun Lin Li
Abstract: Orthotropic bi-materials interfacial crack was studied, by constructing new stress function and using composite complex function method of material fracture. When secular equations’ discriminant 1 0  < and 2 0  < , the theoretical solutions of stress fields without oscillation singularity and displacement fields without embedding of upper and lower sides are derived.
585
Showing 1 to 4 of 4 Paper Titles