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Fundamental physical principles and cohesive zone models at finite displacements - Limitations and possibilities
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- Ottosen, Niels Saabye (author)
- Lund University,Lunds universitet,Hållfasthetslära,Institutionen för byggvetenskaper,Institutioner vid LTH,Lunds Tekniska Högskola,Solid Mechanics,Department of Construction Sciences,Departments at LTH,Faculty of Engineering, LTH
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- Ristinmaa, Matti (author)
- Lund University,Lunds universitet,Hållfasthetslära,Institutionen för byggvetenskaper,Institutioner vid LTH,Lunds Tekniska Högskola,Solid Mechanics,Department of Construction Sciences,Departments at LTH,Faculty of Engineering, LTH
- Mosler, Joern (author)
- (creator_code:org_t)
- Elsevier BV, 2015
- 2015
- English.
- In: International Journal of Solids and Structures. - : Elsevier BV. - 0020-7683. ; 53, s. 70-79
- Journal article (peer-reviewed)
Abstract
Subject headings
Close
- Cohesive zone modeling at finite displacements and crack openings are discussed and evaluated in relation to the fundamental principles provided by thermodynamic consistency, balance of angular momentum and material frame indifference. It is shown that among the existing prototype cohesive zone models within the classical cohesive zone framework, only fully isotropic elastic models or fully isotropic elastic models combined with isotropic damage theory fulfill all of the aforementioned fundamental principles whereas present elasto-plastic models do not. For this reason, and still within the classical cohesive zone framework, a novel elasto-plastic model is proposed which fulfills all requirements. Subsequently, the classical cohesive zone framework is generalized and within this new framework a consistent elasto-plastic model is proposed. (C) 2014 Elsevier Ltd. All rights reserved.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering (hsv//eng)
Keyword
- Cohesive zone models
- Cracks
- Large displacements
- Angular momentum
- Dissipation inequality
- Objectivity
- Principle of frame indifference
Publication and Content Type
- art (subject category)
- ref (subject category)
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