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
Scaling behaviour of strength of 3D-, semi-flexible-, cross-linked fibre network
Mid Sweden Univ, Dept Chem Engn, Holmgatan 10, SE-85170 Sundsvall, Sweden.
Department of Chemical Engineering and FSCN, Mid Sweden University, Holmgatan 10, SE 85170 Sundsvall, Sweden.
Department of Chemical Engineering and FSCN, Mid Sweden University, Holmgatan 10, SE 85170 Sundsvall, Sweden.
2019 (English)In: International Journal of Solids and Structures, ISSN 0020-7683, E-ISSN 1879-2146, Vol. 166, p. 68-74Article in journal (Refereed) Published
Abstract [en]

Anisotropic, semi-flexible, cross-linked, random fibre networks are ubiquitous both in nature and in a wide variety of industrial materials. Modelling mechanical properties of such networks have been done extensively in terms of criticality, mechanical stability, and scaling of network stiffnesses with structural parameters, such as density. However, strength of the network has received much less attention. In this work we have constructed 3D-planar fibre networks where fibres are, more or less, oriented in the inplane direction, and we have investigated the scaling of network strength with density. Instead of modelling fibres as 1D element (e.g., a beam element with stretching, bending and/or shear stiffnesses), we have treated fibres as a 3D-entity by considering the features like twisting stiffness, transverse stiffness, and finite cross-link (or bond) strength in different deformation modes. We have reconfirmed the previous results of elastic modulus in the literature that, with increasing density, the network modulus indeed undergoes a transition from bending-dominated deformation to stretching-dominated with continuously varying scaling exponent. Network strength, on the other hand, scales with density with a constant exponent, i.e., showing no obvious transition phenomena. Using material parameters for wood fibres, we have found that the predicted results for stiffness and strength agree very well with experimental data of fibre networks of varying densities reported in the literature.

Place, publisher, year, edition, pages
PERGAMON-ELSEVIER SCIENCE LTD , 2019. Vol. 166, p. 68-74
Keywords [en]
Network strength, Uniaxial tension, Fibre network, Cellulose, Polymer, Discrete element method
National Category
Paper, Pulp and Fiber Technology
Identifiers
URN: urn:nbn:se:uu:diva-384987DOI: 10.1016/j.ijsolstr.2019.02.003ISI: 000465508700006OAI: oai:DiVA.org:uu-384987DiVA, id: diva2:1324930
Available from: 2019-06-14 Created: 2019-06-14 Last updated: 2019-06-14

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full text

Authority records BETA

Hossain, Md Shakhawath

Search in DiVA

By author/editor
Hossain, Md Shakhawath
In the same journal
International Journal of Solids and Structures
Paper, Pulp and Fiber Technology

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 28 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