Record number :
Title of article :
Crack propagating in functionally graded coating with arbitrarily distributed material properties bonded to homogeneous substrate
Author/Authors :
Cheng، نويسنده , , Zhanqi and Gao، نويسنده , , Danying and Zhong، نويسنده , , Zheng، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2010
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Abstract :
In this paper, a finite crack with constant length (Yoffe type crack) propagating in a functionally graded coating with spatially varying elastic properties bonded to a homogeneous substrate of finite thickness under anti-plane loading was studied. A multi-layered model is employed to model arbitrary variations of material properties based on two linearly-distributed material compliance parameters. The mixed boundary problem is reduced to a system of singular integral equations that are solved numerically. Some numerical examples are given to demonstrate the accuracy, efficiency and versatility of the model. The numerical results show that the graded parameters, the thicknesses of the interfacial layer and the two homogeneous layers, the crack size and speed have significant effects on the dynamic fracture behavior.
Keywords :
multi-layered model , Functionally graded material , Moving crack , Dynamical stress intensity factors
Journal title :
Acta Mechanica Solida Sinica
Journal title :
Acta Mechanica Solida Sinica
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Link To Document :