Fracture Analysis of Antiplane Interface Crack between Two Dissimilar Orthotropic Composite Materials
Junlin Li
Abstract
Junlin Li
Abstract
The problem of an orthotropic bi-material with antiplane interfacial crack was studied.Using composite complex function method of material fracture,the new specific stress function was constructed in this paper.By solving a class of partial differential equations boundary value problems,the expression of stress field,displacement field and stress intensity factor around the crack tip were derived,and the singularity of stress near the crack tip was fixed.The results show that the stress has singularity of r-12 without oscillatory.
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The problem of an orthotropic bi-material with antiplane interfacial crack was studied.Using composite complex function method of material fracture,the new specific stress function was constructed in this paper.By solving a class of partial differential equations boundary value problems,the expression of stress field,displacement field and stress intensity factor around the crack tip were derived,and the singularity of stress near the crack tip was fixed.The results show that the stress has singularity of r-12 without oscillatory.
Key concepts: Orthotropic material, Stress intensity factor, Singularity, Crack tip opening displacement, Materials science, Stress field, Stress (linguistics), Boundary value problem