Construction of a dynamic weight function from a finite-element solution for a cracked beam


Journal Article

An elastodynamic weight function for a cracked beam is shown to be determined by the elastodynamic stress intensity factor corresponding to a single crack-face loading of the beam. This weight function suffices to determine the time-dependent stress intensity factor corresponding to other dynamic loadings of the same cracked beam. The example of a center-cracked pinned-pinned beam serves to illustrate and verify the technique. The weight function is constructed from finite element results for the case of a step pressure distributed uniformly along the beam, and the case of a step load concentrated at the crack plane serves as an illustration of the efficacy of the weight function so constructed. © 1980 by ASME.

Full Text

Duke Authors

Cited Authors

  • Petroski, HJ; Glazik, JL; Achenbach, JD

Published Date

  • January 1, 1980

Published In

Volume / Issue

  • 47 / 1

Start / End Page

  • 51 - 56

Electronic International Standard Serial Number (EISSN)

  • 1528-9036

International Standard Serial Number (ISSN)

  • 0021-8936

Digital Object Identifier (DOI)

  • 10.1115/1.3153637

Citation Source

  • Scopus