Predicting Time-Dependent Interfacial Behavior with a Viscoelastic Cohesive Zone Model

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Description

A time-dependent cohesive zone model is employed to model adhesive failure and grain-boundary cracking. Through the incorporation of viscoelasticity and evolving damage, the viscoelastic cohesive zone model (VCZM) yields a time-dependent critical energy release rate. A double-cantilever beam configuration is investigated. Crack growth curves are presented for the Xu-Needleman and VCZM model. In addition, a fifty-five grain polycrystal is simulated in compression. Time-dependent grain boundary prying and sliding result in inter-granular separation parallel to the major axis of loading.

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6 p.

Creation Information

J. W. Foulk, SNL /CA & D. H. Allen, Texas A&M Univ August 21, 2000.

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This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 11 times . More information about this article can be viewed below.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM, and Livermore, CA (United States)
    Place of Publication: Albuquerque, New Mexico

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Description

A time-dependent cohesive zone model is employed to model adhesive failure and grain-boundary cracking. Through the incorporation of viscoelasticity and evolving damage, the viscoelastic cohesive zone model (VCZM) yields a time-dependent critical energy release rate. A double-cantilever beam configuration is investigated. Crack growth curves are presented for the Xu-Needleman and VCZM model. In addition, a fifty-five grain polycrystal is simulated in compression. Time-dependent grain boundary prying and sliding result in inter-granular separation parallel to the major axis of loading.

Physical Description

6 p.

Notes

OSTI as DE00758911

Medium: P; Size: 6 pages

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  • International Conference on Computational Engineering & Sciences, Los Angles, CA (US), 08/21/2000--08/25/2000

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  • Report No.: SAND2000-8772C
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 758911
  • Archival Resource Key: ark:/67531/metadc706483

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  • August 21, 2000

Added to The UNT Digital Library

  • Sept. 12, 2015, 6:31 a.m.

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  • April 11, 2017, 1:25 p.m.

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J. W. Foulk, SNL /CA & D. H. Allen, Texas A&M Univ. Predicting Time-Dependent Interfacial Behavior with a Viscoelastic Cohesive Zone Model, article, August 21, 2000; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc706483/: accessed September 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.