Elastodynamic direct boundary element methods with enhanced numerical stability properties Academic Article uri icon

abstract

  • Evidence of numerical instabilities in two-dimensional time domain direct boundary element methods is presented. The effects of numerical versus analytical integration of spatial integrals on stability are shown, and two new time-stepping algorithms are introduced and compared to existing formulations. The so-called new 'direct half-step' scheme and the 'epsilon' scheme are shown to improve the numerical stability of direct boundary element methods. Copyright © 1999 John Wiley & Sons, Ltd.

published proceedings

  • International Journal for Numerical Methods in Engineering

author list (cited authors)

  • Birgisson, B., Siebrits, E., & Peirce, A. P

citation count

  • 36

complete list of authors

  • Birgisson, B||Siebrits, E||Peirce, AP

publication date

  • October 1999

publisher