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Residual stiffness of cracked composite laninates
1986 (English)In: Advances in fracture research: Fracture 84, proceedings of the 6th International Conference on Fracture (ICF6), New Delhi, India, 4-10 December 1984 / [ed] S.R. Valluri, Osford: Pergamon Press, 1986Conference paper, Published paper (Refereed)
Abstract [en]

Cracks in composite laminates are characterized by a set of vectors, each representing an individual cracking mode. The vector components are taken as internal variables in the elastic strain energy function and the elastic constitutive equations are derived for the inplane loading condition. For low concentration of cracks in laminates, the residual stiffness properties are related to the initial elastic constants and the magnitude of the damage vectors. These equations are then used to predict stiffness reductions of composite laminates from the observed crack densities. Very good agreement with the experimental values is found.

Place, publisher, year, edition, pages
Osford: Pergamon Press, 1986.
Identifiers
URN: urn:nbn:se:ltu:diva-30132Local ID: 3dddd772-eef9-459d-bb15-85293f44bee3ISBN: 80293093 (print)OAI: oai:DiVA.org:ltu-30132DiVA, id: diva2:1003359
Conference
International Conference on Fracture : 04/12/1984 - 10/12/1984
Note
Upprättat; 1986; 20130926 (andbra)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2018-01-16Bibliographically approved

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