VISCOELASTIC COMPOSITE WITH A CRACKED LAYER UNDER ANTIPLANE SHEAR

A viscoelastic cracked sandwich composite under anti-plane load is pre sented via the application of the Laplace transform and the complex va riable formulation. Using a special technique of analytical continuati on associated with the method of image, the triple-layered problem is reduced to a singular function by simple algebraic manipulations. The superposition method and the singular integral equation is applied to deal with the concentrated load and crack problem. Finally, some typic al viscoelastic models and its corresponding stresses and stress inten sity factors are also discussed. The results show that the time depend ent stress intensity factor is affected by the relative strength of cr eep compliances of each layer.