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Title: Finite element analysis of interface delamination and buckling in thin film systems by wedge indentation
Authors: Liu, P.
Zhang, Y.W. 
Zeng, K.Y. 
Lu, C.
Lam, K.Y.
Keywords: Film buckling
Interface delamination
Traction-separation law
Issue Date: May-2007
Citation: Liu, P., Zhang, Y.W., Zeng, K.Y., Lu, C., Lam, K.Y. (2007-05). Finite element analysis of interface delamination and buckling in thin film systems by wedge indentation. Engineering Fracture Mechanics 74 (7) : 1118-1125. ScholarBank@NUS Repository.
Abstract: A finite element method is used to study the interface delamination and buckling of thin film systems subject to microwedge indentation. In the formulation, the interface adjoining the thin film and substrate is assumed to be the only site where cracking may occur. Both the thin film and the substrate are taken to be ductile materials with finite deformation. A traction-separation law, with two major parameters: interface strength and interface energy, is introduced to simulate the adhesive and failure behaviors of the interface between the film and the substrate. The effects of the interface adhesive properties and the thickness of the thin film on the onset and growth of interface delamination and the film buckling are investigated. © 2007 Elsevier Ltd. All rights reserved.
Source Title: Engineering Fracture Mechanics
ISSN: 00137944
DOI: 10.1016/j.engfracmech.2006.12.025
Appears in Collections:Staff Publications

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