Interaction between an Annular Crack and the Imperfect Interface in Magnetoelectroelastic Layers
The interaction between an annular crack and the interface is of practical significance.The interface,which is imperfect with the assumption that it is mechanically compliant and magnetoelectrically weakly conducting.For a mechanically compliant interface tractions are continuous but displacements are discontinuous across the imperfect interface.For a magnetoelectrically weakly conducting interface the normal electric displacement and magnetic induction are continuous but the electric and magnetic potentials are discontinuous across the interface.Such a problem is investigated by the method of singular integral equation in the present work.The field intensity factors and energy release rate are derived.Numerical results reveal the effects of electric or magnetic loadings,material parameters and interfacial imperfection on crack propagation and growth.The results seem useful for design of the magnetoelectroelastic composite structures and devices of high performance.
Annular crack Imperfect interface Energy release rate Magnetoelectroelastic materials Fracture mechanics
Yansong Li Longjiang Bian Jun Li
College of Civil Engineering,Hebei University of Engineering,Handan 056038,China
国际会议
北京
英文
1-10
2013-06-16（万方平台首次上网日期，不代表论文的发表时间）