DYNAMIC FIELDS GENERATED BY RAPID CRACK GROWTH.

Jan Drewes Achenbach*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Stresses and strains near a rapidly propagating crack tip are affected by the mass density of the material. This paper starts with a brief summary of analytical results for near-tip dynamic fields as predicted by linear elastic fracture mechanics. Next, exact expressions are derived for dynamic crack-line strains, for mode-II crack propagation in a nonlinear elastic material and in an elastic perfectly-plastic material. These expressions are valid on the crack line from the moving crack tip to the moving boundary with the region of linearly elastic deformation. For steady-state crack growth, a critical strain criterion is used to compute the relation between external load and crack tip speed. The required external load increases with crack-tip speed.

Original languageEnglish (US)
Title of host publicationDyn Fract
PublisherMartinus Nijhoff Publ
Pages215-227
Number of pages13
ISBN (Print)9024731798
StatePublished - Dec 1 1985

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Achenbach, J. D. (1985). DYNAMIC FIELDS GENERATED BY RAPID CRACK GROWTH. In Dyn Fract (pp. 215-227). Martinus Nijhoff Publ.