The dependence of the dynamic material toughness on the velocity and on some loading parameters Article

cited authors

  • Shmuely, M; Levy, C

fiu authors

abstract

  • A recently proposed finite difference code, the SMF2D code, is used to simulate fast crack propagation in double cantilever beams (DCB) and single edge notch (SEN) specimens. The crack length-time history, whether measured experimentally, as in the DCB case, or conjectured, as in the SEN case, serves as input data. Several trial functions were used to simulate the initial acceleration phase since this phase has little available experimental data. Their effect on the overall results are found to be negligible except in the deceleration stage of crack propagation. Results for the cases investigated indicate that the dynamic material toughness is not a single valued function of crack velocity only, but that it also depends on some loading parameters and the specimen geometry. © 1982 Martinus Nijhoff Publishers.

publication date

  • July 1, 1982

Digital Object Identifier (DOI)

start page

  • 221

end page

  • 239

volume

  • 19

issue

  • 3