Abstract
Transient stress intensification due to the interaction of two parallel, edge interfacial cracks in bonded media with a functionally graded interlayer is investigated under the condition of antiplane shear impact. The graded interlayer is assumed to exhibit power-law variations in shear modulus and mass density between dissimilar, homogeneous semi-infinite strips. Laplace and Fourier integral transforms are employed to derive a system of singular integral equations with generalized Cauchy kernels, which is solved in the Laplace domain. Mode III stress intensity factors are defined and evaluated as a function of time. Numerical results include variations of dynamic stress intensity factors, addressing the impact-induced interaction between two nearby edge interfacial cracks affected by geometric and material parameters of the bonded system. More specifically, this study elaborates on the effects that layer thickness, crack length, shear modulus, and mass density have on the dynamic overshoot characteristics of transient behavior in the near-tip regions.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
