Rapid extension of a penny-shaped crack under torsion

Timothy C. Kennedy*, Jan D. Achenbach

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


The rapid extension of a penny-shaped crack under torsion is investigated. Both dynamic and quasi-static loading is considered. The wave motion is analyzed through a Green's function technique which leads to an integral equation for the stress field around the crack. Asymptotic expansions for the stress intensity and displacement rate intensity functions which are valid for a small time are obtained for the two types of loading. The propagation of the crack is analyzed through the balance of rates of energy criterion.

Original languageEnglish (US)
Pages (from-to)519-530
Number of pages12
JournalInternational Journal of Solids and Structures
Issue number5
StatePublished - May 1974
Externally publishedYes

ASJC Scopus subject areas

  • Modeling and Simulation
  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Applied Mathematics


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