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Cohesive fracture growth in a thermoelastic bimaterial medium

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Title: Cohesive fracture growth in a thermoelastic bimaterial medium
Authors: Secchi, S.1, Simoni, L.2 simoni@caronte.dic.unipd.it, Schrefler, B.A.2
Source: Computers & Structures. Sep2004, Vol. 82 Issue 23-26, p1875-1887. 13p.
Subjects: Numerical analysis, Thermoelasticity, Finite element method, Topology
Abstract: Abstract: The paper presents a fully-coupled numerical model for the analysis of fracture initiation and propagation in a two dimensional non-homogeneous elastic medium driven by mechanical loads and transient thermal fields. Cohesive crack behaviour is assumed for the solid. The solution of the coupled problem is obtained by using the finite element method without using special approximation techniques nor interface elements. Evolution of the process zone results in continuous changes of the domain topology. This is accounted for by updating the boundary geometry and successive remeshing of the domain. Optimality of the shape of the finite elements generated is controlled and the mesh density is adjusted adaptively on the basis of an error estimator. Two numerical applications are presented, which demonstrate the effectiveness of the proposed procedure. In the first, comparison is made with a laboratory experiment, whereas the second handles a problem with crack path completely unknown. [Copyright &y& Elsevier]
Copyright of Computers & Structures is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 17486908
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Cohesive fracture growth in a thermoelastic bimaterial medium
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  Data: <searchLink fieldCode="AR" term="%22Secchi%2C+S%2E%22">Secchi, S.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Simoni%2C+L%2E%22">Simoni, L.</searchLink><relatesTo>2</relatesTo><i> simoni@caronte.dic.unipd.it</i><br /><searchLink fieldCode="AR" term="%22Schrefler%2C+B%2EA%2E%22">Schrefler, B.A.</searchLink><relatesTo>2</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Computers+%26+Structures%22">Computers & Structures</searchLink>. Sep2004, Vol. 82 Issue 23-26, p1875-1887. 13p.
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  Data: <searchLink fieldCode="DE" term="%22Numerical+analysis%22">Numerical analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Thermoelasticity%22">Thermoelasticity</searchLink><br /><searchLink fieldCode="DE" term="%22Finite+element+method%22">Finite element method</searchLink><br /><searchLink fieldCode="DE" term="%22Topology%22">Topology</searchLink>
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  Data: Abstract: The paper presents a fully-coupled numerical model for the analysis of fracture initiation and propagation in a two dimensional non-homogeneous elastic medium driven by mechanical loads and transient thermal fields. Cohesive crack behaviour is assumed for the solid. The solution of the coupled problem is obtained by using the finite element method without using special approximation techniques nor interface elements. Evolution of the process zone results in continuous changes of the domain topology. This is accounted for by updating the boundary geometry and successive remeshing of the domain. Optimality of the shape of the finite elements generated is controlled and the mesh density is adjusted adaptively on the basis of an error estimator. Two numerical applications are presented, which demonstrate the effectiveness of the proposed procedure. In the first, comparison is made with a laboratory experiment, whereas the second handles a problem with crack path completely unknown. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of Computers & Structures is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.compstruc.2004.03.059
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      – Code: eng
        Text: English
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        PageCount: 13
        StartPage: 1875
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        Type: general
      – SubjectFull: Thermoelasticity
        Type: general
      – SubjectFull: Finite element method
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      – SubjectFull: Topology
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      – TitleFull: Cohesive fracture growth in a thermoelastic bimaterial medium
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              Text: Sep2004
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