Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • 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
Modelling of dynamic crack propagation in rubber
KTH, School of Engineering Sciences (SCI), Solid Mechanics (Dept.).
2013 (English)Licentiate thesis, comprehensive summary (Other academic)
Place, publisher, year, edition, pages
Stockholm: KTH Royal Institute of Technology, 2013. , vi, 15 p.
Series
Trita-HFL. Report / Royal Institute of Technology, Solid Mechanics, ISSN 1654-1472 ; 0536
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:kth:diva-123154OAI: oai:DiVA.org:kth-123154DiVA: diva2:624889
Presentation
2013-05-24, Seminarierummet, Inst för hållfasthetslära, Teknikringen 8, KTH, Stockholm, 13:00 (English)
Opponent
Supervisors
Note

QC 20130603

Available from: 2013-06-03 Created: 2013-06-03 Last updated: 2013-06-03Bibliographically approved
List of papers
1. Numerical analysis of dynamic crack propagation in rubber
Open this publication in new window or tab >>Numerical analysis of dynamic crack propagation in rubber
2012 (English)In: International Journal of Fracture, ISSN 0376-9429, E-ISSN 1573-2673, Vol. 177, no 2, 163-178 p.Article in journal (Refereed) Published
Abstract [en]

In the present paper, dynamic crack propagation in rubber is analyzed numerically using the finite element method. The problem of a suddenly initiated crack at the center of stretched sheet is studied under plane stress conditions. A nonlinear finite element analysis using implicit time integration scheme is used. The bulk material behavior is described by finite-viscoelasticity theory and the fracture separation process is characterized using a cohesive zone model with a bilinear traction-separation law. Hence, the numerical model is able to model and predict the different contributions to the fracture toughness, i.e. the surface energy, viscoelastic dissipation, and inertia effects. The separation work per unit area and the strength of the cohesive zone have been parameterized, and their influence on the separation process has been investigated. A steadily propagating crack is obtained and the corresponding crack tip position and velocity history as well as the steady crack propagation velocity are evaluated and compared with experimental data. A minimum threshold stretch of 3.0 is required for crack propagation. The numerical model is able to predict the dynamic crack growth. It appears that the strength and the surface energy vary with the crack speed. Finally, the maximum principal stretch and stress distribution around steadily propagation crack tip suggest that crystallization and cavity formation may take place.

Keyword
Rubber, Crack, Viscoelasticity, Cohesive zone, Dynamic fracture
National Category
Materials Engineering
Identifiers
urn:nbn:se:kth:diva-104370 (URN)10.1007/s10704-012-9761-8 (DOI)000309353200005 ()2-s2.0-84867248444 (Scopus ID)
Note

QC 20121109

Available from: 2012-11-09 Created: 2012-11-01 Last updated: 2017-12-07Bibliographically approved
2. Numerical analysis of dynamic crack propagation in biaxially strained rubber sheets
Open this publication in new window or tab >>Numerical analysis of dynamic crack propagation in biaxially strained rubber sheets
2013 (English)Report (Other academic)
Series
Trita-HFL. Report / Royal Institute of Technology, Solid Mechanics, ISSN 1654-1472 ; 535
National Category
Materials Engineering
Identifiers
urn:nbn:se:kth:diva-123153 (URN)
Note

QC 20130603

Available from: 2013-06-03 Created: 2013-06-03 Last updated: 2013-06-03Bibliographically approved

Open Access in DiVA

No full text

Search in DiVA

By author/editor
Elmukashfi, Elsiddig
By organisation
Solid Mechanics (Dept.)
Materials Engineering

Search outside of DiVA

GoogleGoogle Scholar

urn-nbn

Altmetric score

urn-nbn
Total: 231 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • 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