Journal of Materials Science

, Volume 28, Issue 4, pp 875–879 | Cite as

Displacement control crack-growth instability in an elastic-softening material

Part I Linear elastic analysis for bend specimen configuration
  • E. Smith


The criterion for a cusp catastrophe type of crack-growth instability in an elastic-softening material that is subjected to displacement control loading conditions has been investigated. Attention was focused on the behaviour of a material whose softening-zone size was very small in comparison with a solid's characteristic dimensions, because this facilitates a simple linear elastic analysis. Special consideration was given to the behaviour of an edge-cracked solid that was subjected to bending deformation, and the results complement those obtained by Carpinteri, who analysed the behaviour of an elastic-softening material which had a very large softening-zone size.


Polymer Material Processing Characteristic Dimension Special Consideration Displacement Control 
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Copyright information

© Chapman & Hall 1993

Authors and Affiliations

  • E. Smith
    • 1
  1. 1.UMIST Materials Science CentreManchester UniversityManchesterUK

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