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Estimating the average size of fiber/matrix interface cracks in UD and cross-ply laminates
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science. IJL, EEIGM, Université de Lorraine. (Polymeric Composite Materials)ORCID iD: 0000-0002-9261-301x
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.ORCID iD: 0000-0001-9649-8621
2019 (English)In: / [ed] A. Turon, P. Maimi, M. Fagerström, 2019Conference paper, Published paper (Refereed)
Abstract [en]

Initiation and propagation of fiber/matrix interface cracks are analyzed in Representative Volume Elements (RVEs) of UD and cross-ply laminates. By studying the distribution of stresses at the fiber/matrix interface in the undamaged case, an estimate of the initial flaw size is derived. By adopting a 2-parameters energy-based criterion for propagation [1], we then proceed to the estimation of the expected debond size in different microstructural arrangements. Finally, the results are compared with microscopic observations available in the literature [2].

Place, publisher, year, edition, pages
2019.
Keywords [en]
Fiber Reinforced Polymer (FRP), Debonding, Linear Elastic Fracture Mechanics (LEFM)
National Category
Composite Science and Engineering
Research subject
Polymeric Composite Materials; Polymeric Composite Materials; Polymeric Composite Materials; Polymeric Composite Materials
Identifiers
URN: urn:nbn:se:ltu:diva-76254OAI: oai:DiVA.org:ltu-76254DiVA, id: diva2:1357992
Conference
7th ECCOMAS Conference of the Mechanical Response of Composites (COMPOSITES 2019)
Available from: 2019-10-05 Created: 2019-10-05 Last updated: 2019-10-05

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Di Stasio, LucaVarna, Janis

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