Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.engfracmech.2004.01.005
Title: Vapor pressure and residual stress effects on the toughness of polymeric adhesive joints
Authors: Chew, H.B.
Guo, T.F. 
Cheng, L. 
Keywords: Adhesive
Crack growth
Debonding
Fracture toughness
Void growth
Issue Date: Nov-2004
Source: Chew, H.B., Guo, T.F., Cheng, L. (2004-11). Vapor pressure and residual stress effects on the toughness of polymeric adhesive joints. Engineering Fracture Mechanics 71 (16-17) : 2435-2448. ScholarBank@NUS Repository. https://doi.org/10.1016/j.engfracmech.2004.01.005
Abstract: Parallel debonding along the two interfaces formed by a ductile polymeric film joining elastic substrates is studied. The film is taken to be elastic-plastic. The film-substrate interface is modeled by a strip of cells that incorporates vapor pressure effects on void growth and coalescence through a Gurson porous material relation. Thermal expansion mismatch between the film and the substrates is treated as an initial residual stress in the film. When residual stress is combined with high vapor pressure, interface cracking of the joint exhibits brittle-like characteristics with joint toughness reduced significantly. Other factors affecting joint toughness, such as initial porosity of the interface as well as strain hardening and thickness of the film are also discussed. © 2004 Elsevier Ltd. All rights reserved.
Source Title: Engineering Fracture Mechanics
URI: http://scholarbank.nus.edu.sg/handle/10635/61662
ISSN: 00137944
DOI: 10.1016/j.engfracmech.2004.01.005
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