Dynamic instabilities in fracture

Emily S.C. Ching, J. S. Langer, Hiizu Nakanishi

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

We find that moving cracks are strongly unstable against deflection in essentially all conventional cohesive-zone models of fracture dynamics. This instability is governed by detailed mechanisms of deformation and decohesion at crack tips; it cannot be detected by quasistatic far-field theories that consider only energy balance and neglect relevant dynamic degrees of freedom. Our picture of intrinsic instability is consistent with a wide range of experimental observations.

Original languageEnglish
Pages (from-to)1087-1090
Number of pages4
JournalPhysical Review Letters
Volume76
Issue number7
DOIs
Publication statusPublished - Jan 1 1996

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crack tips
far fields
deflection
cracks
degrees of freedom
energy

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Dynamic instabilities in fracture. / Ching, Emily S.C.; Langer, J. S.; Nakanishi, Hiizu.

In: Physical Review Letters, Vol. 76, No. 7, 01.01.1996, p. 1087-1090.

Research output: Contribution to journalArticle

Ching, Emily S.C. ; Langer, J. S. ; Nakanishi, Hiizu. / Dynamic instabilities in fracture. In: Physical Review Letters. 1996 ; Vol. 76, No. 7. pp. 1087-1090.
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