Acoustic emission from a surface-breaking crack under cyclic loading

Jan Drewes Achenbach*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

An isotropic, homogeneous, elastic half-space is subjected to a uniform stress system composed of a constant tensile stress with a superimposed cyclic tensile stress, both parallel to the free surface. The cyclic stresses are assumed to generate a surface-breaking crack of length l(t) which propagates normal to the surface. The unloading of the crack faces generates acoustic emission, which is primarily composed of surface waves. The elastodynamic reciprocity theorem for time-harmonic waves is used to determine the radiated system of transient and steady state surface waves.

Original languageEnglish (US)
Pages (from-to)61-68
Number of pages8
JournalActa Mechanica
Volume195
Issue number1-4
DOIs
StatePublished - Jan 1 2008

ASJC Scopus subject areas

  • Mechanics of Materials
  • Computational Mechanics

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