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Title:Elastic stress analysis of bi material plate with crack normal to interfaces
Author(s):Lin, Fong-tsu
Subject(s):Elastic Stress
Bi-material Plate
Abstract:The elastic stress analyses of a bi-material plate with a crack approaching normally to the bi-material interfaces and with crack tips at the interfaces are studied in this investigation. The finite element method was used to analyze the problems. Strain energy release rate, G, was calculated by a potential energy method for the crack approaching normally to the interfaces. Finite element procedures and computer programs for the bi-material plate under plane stress condition were developed during the course of this investigation. The strength of stress singularity, the stress distribution (straight ahead of the crack and along the interface) are also discussed. The strain energy release rate coefficient, G /P2, of an aluminum-epoxy system was found by an experimental compliance calibration procedure. A boundary collocation procedure applied to the Zak and Williams stress function was employed to determine the elastic stress function in the vicinity of the crack tip of a bi-material plate with a crack normal to the interfaces and crack tips at the interfaces.
Issue Date:1972-05
Publisher:Department of Theoretical and Applied Mechanics. College of Engineering. University of Illinois at Urbana-Champaign
Series/Report:TAM R 356
Genre:Technical Report
Sponsor:Naval Air Systems Command, Contract No. N00019-72-C-0274
Rights Information:Copyright 1972 Board of Trustees of the University of Illinois
Date Available in IDEALS:2021-11-04

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  • Technical Reports - Theoretical and Applied Mechanics (TAM)
    TAM technical reports include manuscripts intended for publication, theses judged to have general interest, notes prepared for short courses, symposia compiled from outstanding undergraduate projects, and reports prepared for research-sponsoring agencies.

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