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Crack opening displacement and the associated response of laminates with varying constraints
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.ORCID iD: 0000-0001-9649-8621
School of Aerospace Engineering, Georgia Institute of Technology, Atlanta.
Luleå University of Technology, Department of Engineering Sciences and Mathematics.ORCID iD: 0000-0003-1871-4020
1999 (English)In: International journal of damage mechanics, ISSN 1056-7895, E-ISSN 1530-7921, Vol. 8, no 2, p. 174-193Article in journal (Refereed) Published
Abstract [en]

This paper reports an experimental study of the opening displacement behavior of 90-ply cracks in a class of composite laminates where the constraint to cracking is varied systematically. The study is motivated by a synergistic approach to damage mechanics proposed by Talreja (1996) where the crack opening displacement forms a key micromechanically determined parameter in a continuum damage formulation of the composite response. It is found that although the opening displacement shows scatter from point to point along a crack length, its average over the crack length forms a robust parameter. This parameter, when introduced as the damage influence coefficient in a continuum description of damage, allows satisfactory predictions of the elastic moduli changes due to transverse cracks in the considered class of laminates with varying constraints.

Place, publisher, year, edition, pages
1999. Vol. 8, no 2, p. 174-193
National Category
Composite Science and Engineering
Research subject
Polymeric Composite Materials
Identifiers
URN: urn:nbn:se:ltu:diva-5488DOI: 10.1177/105678959900800205ISI: 000208663400004Scopus ID: 2-s2.0-0033108023Local ID: 399e1d00-a26d-11db-8975-000ea68e967bOAI: oai:DiVA.org:ltu-5488DiVA, id: diva2:978362
Note
Godkänd; 1999; 20070112 (ysko)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2023-09-05Bibliographically approved

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Varna, JanisTalreja, Ramesh

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