Sourki, R., Ayatollahi, M., Monfared, M. (2018). Mode III fracture analysis of a non-homogeneous layer bonded to an elastic half-plane weakened by multiple interface cracks. Scientia Iranica, 25(5), 2570-2581. doi: 10.24200/sci.2017.4493
R. Sourki; M. Ayatollahi; M. M. Monfared. "Mode III fracture analysis of a non-homogeneous layer bonded to an elastic half-plane weakened by multiple interface cracks". Scientia Iranica, 25, 5, 2018, 2570-2581. doi: 10.24200/sci.2017.4493
Sourki, R., Ayatollahi, M., Monfared, M. (2018). 'Mode III fracture analysis of a non-homogeneous layer bonded to an elastic half-plane weakened by multiple interface cracks', Scientia Iranica, 25(5), pp. 2570-2581. doi: 10.24200/sci.2017.4493
Sourki, R., Ayatollahi, M., Monfared, M. Mode III fracture analysis of a non-homogeneous layer bonded to an elastic half-plane weakened by multiple interface cracks. Scientia Iranica, 2018; 25(5): 2570-2581. doi: 10.24200/sci.2017.4493
Mode III fracture analysis of a non-homogeneous layer bonded to an elastic half-plane weakened by multiple interface cracks
1Faculty of Engineering, University of Zanjan, P.O. Box 45195-313, Zanjan, Iran
2Department of Mechanical Engineering, Hashtgerd Branch, Islamic Azad University, P.O. Box 33615-178, Alborz, Iran
Abstract
In this paper, the mode III crack problem of a non-homogenous layer bonded to an elastic half-plane is considered. It is assumed that the half plane is homogeneous and the layer is non-homogeneous in which the elastic properties are continuous throughout the layer. The stress field in a non-homogeneous layer and in an elastic half plane with Volterra type screw dislocation is obtained. Fourier transforms was applied to governing equations to derive a system of singular integral equations with simple Cauchy kernel. Then, the integral equations are solved numerically by converting to a system of linear algebraic equations and by using a collocation technique. The results given include the effect of the non-homogeneity parameters, interaction between the multiple cracks and distance of the cracks on the stress intensity factors for the purpose of gaining better understanding of the mechanical behavior of non-homogenous coating.
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