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Damage evolution under cyclic multiaxial stress state: A comparative analysis between glass/epoxy laminates and tubes
Department of Management and Engineering, University of Padova.
Department of Management and Engineering, University of Padova.
Department of Wind Energy, Technical University of Denmark, Risø Campus.
Department of Management and Engineering, University of Padova.
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2014 (English)In: Composites Part B: Engineering, ISSN 1359-8368, E-ISSN 1879-1069, Vol. 61, p. 282-290Article in journal (Refereed) Published
Abstract [en]

In this work an experimental investigation on damage initiation and evolution in laminates under cyclic loading is presented. The stacking sequence [0/θ2/0/−θ2]s has been adopted in order to investigate the influence of the local multiaxial stress state in the off-axis plies and the possible effect of different thickness between the thin (2-plies) and the thick (4-plies) layers. Results are presented in terms of S–N curves for the initiation of the first cracks, crack density evolution, stiffness degradation and Paris-like curves for the crack propagation phase. The values of the off-axis angle θ has been chosen in order to obtain local multiaxial stress states in the off-axis plies similar to those in previous studies for biaxially loaded tubes. Results concerning damage initiation and growth for these two specimen configurations are shown to be consistent for similar local multiaxial stress states

Place, publisher, year, edition, pages
2014. Vol. 61, p. 282-290
National Category
Composite Science and Engineering
Research subject
Polymeric Composite Materials
Identifiers
URN: urn:nbn:se:ltu:diva-11447DOI: 10.1016/j.compositesb.2014.01.056ISI: 000334133900032Scopus ID: 2-s2.0-84894707576Local ID: a6922c5c-8b44-483f-ac52-ed9d95fd3a28OAI: oai:DiVA.org:ltu-11447DiVA, id: diva2:984397
Note
Validerad; 2014; 20140210 (andbra)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Varna, JanisTalreja, Ramesh

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