A comparative study of three boundary element approaches to transient dynamic crack problems
- 1 January 1994
- journal article
- Published by Elsevier BV in Engineering Analysis with Boundary Elements
- Vol. 13 (1), 11-19
- https://doi.org/10.1016/0955-7997(94)90003-5
Abstract
Using displacement integral representations for time dependent elastic problems, three different boundary element (BE) approaches can be considered. One is based on the time domain formulation, a second one on the frequency domain formulation, and the third on the dual reciprocity formulation. In this paper, the three BE approaches are applied and compared when used for the computation of stress intensity factors (SIF) of stationary cracks under dynamic loading. In the three cases a quadratic discretization in space and a singular quarter-point (SQP) element are used. Several problems are solved and the results obtained by the three approaches compared. The dual reciprocity approach for dynamic SIF computation is presented in this paper. Conclusions and recommendations on the capabilities of the three approaches in dynamic fracture mechanics are presented.Keywords
This publication has 12 references indexed in Scilit:
- The dual boundary element method: Effective implementation for crack problemsInternational Journal for Numerical Methods in Engineering, 1992
- Time domain boundary element method for dynamic stress intensity factor computationsInternational Journal for Numerical Methods in Engineering, 1992
- The time domain boundary element method for elastodynamic problemsMathematical and Computer Modelling, 1991
- Dynamic analysis of cracks using boundary element methodEngineering Fracture Mechanics, 1989
- A boundary element procedure for transient wave propagations in two-dimensional isotropic elastic mediaFinite Elements in Analysis and Design, 1985
- On the use of quarter‐point boundary elements for stress intensity factor computationsInternational Journal for Numerical Methods in Engineering, 1984
- A new approach to free vibration analysis using boundary elementsApplied Mathematical Modelling, 1983
- Two‐dimensional stress intensity factor computations using the boundary element methodInternational Journal for Numerical Methods in Engineering, 1981
- Boundary-integral equation analysis of cracked anisotropic platesInternational Journal of Fracture, 1975
- A Recurrence Matrix Solution for the Dynamic Response of Elastic AircraftJournal of the Aeronautical Sciences, 1950