Acoustic emissions from rapidly moving cracks

Steven P. Gross*, Jay Fineberg, M. Marder, W. D. McCormick, Harry L. Swinney

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

139 Scopus citations


Linear elasticity is unable to predict completely the dynamics of a rapidly moving crack without the addition of a phenomenological fracture energy. Our measurements of acoustic emission, crack velocity, and surface structure demonstrate quantitatively similar dynamical fracture behavior in two very different materials, polymethylmethacrylate and soda-lime glass. This unexpected agreement suggests that there exist universal features of the fracture energy that result from dissipation of energy in a dynamical instability.

Original languageEnglish
Pages (from-to)3162-3165
Number of pages4
JournalPhysical Review Letters
Issue number19
StatePublished - 1993
Externally publishedYes


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