uu.seUppsala University Publications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
A study on the influence of boundary conditions in computational homogenization of periodic structures with application to woven composites
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.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics.
2017 (English)In: Composite structures, ISSN 0263-8223, E-ISSN 1879-1085, Vol. 160, p. 529-537Article in journal (Refereed) Published
Abstract [en]

The influence of boundary conditions (BCs) in the estimation of elastic properties of periodic structures is investigated using computational homogenization with special focus on planar structures. Uniform displacement, uniform traction, periodic, in-plane periodic and a proposed mix of periodic and traction BCs are used. First, the effect of the BCs is demonstrated in structures with one-, two- and three-dimensional periodicity. Mixed BCs are shown to most accurately represent the behavior of layered structures with a small number of repeating unit cells. Then, BCs are imposed on a twill woven composite architecture. Special attention is devoted to investigate the sensitivity of the estimated properties with respect to the BCs and to show differences when considering a single lamina or a laminate. High sensitivity of the in-plane extensional modulus and Poisson's ratio with respect to the type of BCs is found. Moreover, it is shown that the mix of BCs and in-plane periodic BCs are capable to represent an experimental strain field.

Place, publisher, year, edition, pages
2017. Vol. 160, p. 529-537
Keywords [en]
Computational homogenization, Mixed boundary conditions, Heterogeneous structures, Elastic properties, Woven composites, Finite element method
National Category
Composite Science and Engineering
Identifiers
URN: urn:nbn:se:uu:diva-359307DOI: 10.1016/j.compstruct.2016.10.082ISI: 000390470300044OAI: oai:DiVA.org:uu-359307DiVA, id: diva2:1244327
Available from: 2018-08-31 Created: 2018-08-31 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

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full text

Authority records BETA

Espadas-Escalante, Juan Josévan Dijk, Nico P.Isaksson, Per

Search in DiVA

By author/editor
Espadas-Escalante, Juan Josévan Dijk, Nico P.Isaksson, Per
By organisation
Applied Mechanics
In the same journal
Composite structures
Composite Science and Engineering

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 119 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf