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Prediction Of Thermoelastic Properties Of Composite Laminates With Matrix Cracks.
SWEDISH INST. COMPOSITE.ORCID iD: 0000-0002-0307-8917
SWEDISH INST. COMPOSITE.ORCID iD: 0000-0001-8699-7910
1992 (English)In: Composites Science And Technology, ISSN 0266-3538, Vol. 44, no 2, 95-105 p.Article in journal (Refereed) Published
Abstract [en]

A theory is presented for the determination of changes in the elastic compliance tensor and the thermal expansion coefficients due to matrix cracking. Effects of residual stresses are taken into account. The theory is valid for two- or three-dimensional laminates of arbitrary lay-ups and is asymptotically exact for dilute micro-crack densities. For large micro-crack densities an alternative model is described which is asymptotically exact for large crack densities. Combined, the two models cover to a good approximation the whole range of micro-crack densities. The theory is applied to a micro-cracking cross-ply GFRP laminate for which the stress/strain curve is calculated. Data are also presented for changes in thermomechanical properties of angle ply laminates as functions of the lay-up angle.

Place, publisher, year, edition, pages
1992. Vol. 44, no 2, 95-105 p.
Keyword [en]
matrix cracks, stiffness, compliance, thermal expansion, residual stress
National Category
Mechanical Engineering Materials Engineering
URN: urn:nbn:se:kth:diva-25509DOI: 10.1016/0010-4361(92)90357-ZISI: A1992HM89300001OAI: diva2:358828
QC 20101025Available from: 2010-10-25 Created: 2010-10-25 Last updated: 2010-10-25Bibliographically approved

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Gudmundson, PeterÖstlund, Sören
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