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A study of induced delamination and failure in woven composite laminates subject to short-beam shear testing
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics.
2019 (English)In: Engineering Fracture Mechanics, ISSN 0013-7944, E-ISSN 1873-7315, Vol. 205, p. 359-369Article in journal (Refereed) Published
Abstract [en]

Failure in woven composite laminates subject to global shear load is studied. Laminates are manufactured, tested and analyzed using X-ray computed tomography, scanning electron microscopy and finite element models. It is found that the stress distribution along the thickness direction is dependent on the layer shifting that alters different yarn interactions, which in turn, affects delamination and failure onset A suggested failure mechanism is in agreement with experimental observations.

Place, publisher, year, edition, pages
2019. Vol. 205, p. 359-369
National Category
Applied Mechanics
Identifiers
URN: urn:nbn:se:uu:diva-368250DOI: 10.1016/j.engfracmech.2018.10.015ISI: 000453766000026OAI: oai:DiVA.org:uu-368250DiVA, id: diva2:1267651
Available from: 2018-12-03 Created: 2018-12-03 Last updated: 2019-07-05Bibliographically approved
In thesis
1. On numerical analyses of woven composite laminates: Homogenization, damage and fracture
Open this publication in new window or tab >>On numerical analyses of woven composite laminates: Homogenization, damage and fracture
2019 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

This dissertation analyzes various mechanical properties of textile reinforced composite laminates.

The dissertation is based on a total of six published works, which are essentially numerical, although experimental elements are available. The numerical methods used are based on high-resolution finite element models in combination with sophisticated phase-field theories for brittle fracture. A key result is that important mechanical properties in engineering applications, such as fracture or damage resistance, can be substantially affected by the arrangement of the constituent materials at the meso level.

Place, publisher, year, edition, pages
Uppsala: Acta Universitatis Upsaliensis, 2019. p. 53
Series
Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology, ISSN 1651-6214 ; 1828
National Category
Applied Mechanics Aerospace Engineering Composite Science and Engineering Textile, Rubber and Polymeric Materials
Research subject
Engineering science with specialization in Applied Mechanics
Identifiers
urn:nbn:se:uu:diva-388808 (URN)978-91-513-0699-5 (ISBN)
Public defence
2019-09-13, Siegbahnsalen, The Ȧngström Laboratory, Lägerhuddsvägen 1, Uppsala, 09:15 (English)
Opponent
Available from: 2019-08-22 Created: 2019-07-05 Last updated: 2019-09-17Bibliographically approved

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Espadas-Escalante, Juan JoséIsaksson, Per

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