Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.engfracmech.2009.07.016
Title: A three-dimensional finite element analysis of interface delamination in a ductile film/hard substrate system induced by wedge indentation
Authors: She, C.
Zhang, Y.-W. 
Zeng, K.-Y. 
Keywords: Film arching
Fracture toughness
Interface delamination
Traction-separation law
Wedge indentation
Issue Date: Sep-2009
Citation: She, C., Zhang, Y.-W., Zeng, K.-Y. (2009-09). A three-dimensional finite element analysis of interface delamination in a ductile film/hard substrate system induced by wedge indentation. Engineering Fracture Mechanics 76 (14) : 2272-2280. ScholarBank@NUS Repository. https://doi.org/10.1016/j.engfracmech.2009.07.016
Abstract: Interface delamination and arching of a ductile thin film on a hard substrate subject to microwedge indentation were investigated systematically using a three-dimensional finite element method. A traction-separation law was introduced to simulate the cohesion and failure behavior of the interface between the film and the substrate. The effects of the interface strength and the length of the microwedge indenter on the onset and growth of interface delamination and film arching were analyzed. It was shown that a two-dimensional to three-dimensional transition of stress state occurs during indentation, depending on the indenter length and indentation depth. Conditions for using two-dimensional and three-dimensional models were suggested. © 2009 Elsevier Ltd. All rights reserved.
Source Title: Engineering Fracture Mechanics
URI: http://scholarbank.nus.edu.sg/handle/10635/59317
ISSN: 00137944
DOI: 10.1016/j.engfracmech.2009.07.016
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