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Micromechanics of damage accumulation in a 2.5D woven C-fiber/SiC ceramic composite
Luleå tekniska universitet.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.ORCID iD: 0000-0001-9649-8621
2001 (English)In: Mechanics of composite materials, ISSN 0191-5665, E-ISSN 1573-8922, Vol. 37, no 4, p. 289-298Article in journal (Refereed) Published
Abstract [en]

The morphology of a C/PyC/SiC ceramic composite is studied and its microdamage mechanisms are revealed. Some models based on the micromechanical fracture mechanics are proposed to describe the possible damage processes. The influence of the observed microdamage on the stiffness reduction, is studied. It is shown that the delamination between the layers and the cracks in the coating alone cannot explain the stiffness reduction observed in tests. Debonding between the SiC coating and pyrocarbon is suggested as another mechanism of the stiffness reduction.

Place, publisher, year, edition, pages
2001. Vol. 37, no 4, p. 289-298
National Category
Composite Science and Engineering
Research subject
Polymeric Composite Materials
Identifiers
URN: urn:nbn:se:ltu:diva-15519DOI: 10.1023/A:1012336618540ISI: 000173146000003Scopus ID: 2-s2.0-0035384969Local ID: f0ce40e0-b1fe-11db-bf9d-000ea68e967bOAI: oai:DiVA.org:ltu-15519DiVA, id: diva2:988493
Note
Validerad; 2001; 20070104 (ysko)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Varna, Janis

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