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Energy release rate based fiber/matrix debond growth in fatigue: Part II: Debond growth analysis using Paris law
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.ORCID iD: 0000-0001-9649-8621
Riga Technical University, Latvia.
2013 (English)In: Mechanics of Advanced Materials and Structures, ISSN 1537-6494, E-ISSN 1537-6532, Vol. 20, no 4, p. 288-296Article in journal (Refereed) Published
Abstract [en]

The strain energy release rate related to debond crack growth along the fiber/matrix interface in a unidirectional composite with a broken and partially debonded fiber is analyzed. The focus in this paper (Part II) in contrast to the self-similar crack growth analysis in Part I [1] is on growth of short debonds near the fiber break. Since self-similarity condition is not valid for interactive cracks, numerical FEM simulations were used to calculate magnification of previously described coefficients in the strain energy release rate expression. The findings from these studies are used in simulation of the debond growth in tension-tension fatigue using Paris law.

Place, publisher, year, edition, pages
2013. Vol. 20, no 4, p. 288-296
National Category
Composite Science and Engineering
Research subject
Polymeric Composite Materials
Identifiers
URN: urn:nbn:se:ltu:diva-8485DOI: 10.1080/15376494.2011.627628ISI: 000314863400004Scopus ID: 2-s2.0-84874306406Local ID: 6ff52940-50a1-4078-94cc-7cb74817cdc5OAI: oai:DiVA.org:ltu-8485DiVA, id: diva2:981423
Note
Validerad; 2013; 20121122 (andbra)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Pupurs, AndrejsVarna, Janis

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