Dynamic buckling and fragmentation in brittle rods

J. R. Gladden, N. Z. Handzy, A. Belmonte, E. Villermaux

Research output: Contribution to journalArticle

65 Scopus citations

Abstract

We present experiments on the dynamic buckling and fragmentation of slender rods axially impacted by a projectile. By combining the results of Saint-Venant and elastic beam theory, we derive a preferred wavelength A for the buckling instability, and experimentally verify the resulting scaling law for a range of materials including teflon, dry pasta, glass, and steel. For brittle materials, buckling leads to the fragmentation of the rod. Measured fragment length distributions show two peaks near λ/2 and λ/4. The nonmonotonic nature of the distributions reflect the influence of the deterministic buckling process on the more random fragmentation processes.

Original languageEnglish (US)
Article number035503
JournalPhysical Review Letters
Volume94
Issue number3
DOIs
StatePublished - Jan 28 2005

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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