Time discontinuous linear traction approximation in time-domain BEM scalar wave propagation analysis
โ Scribed by W. J. Mansur; J. A. M. Carrer; E. F. N. Siqueira
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 153 KB
- Volume
- 42
- Category
- Article
- ISSN
- 0029-5981
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โฆ Synopsis
In the present paper the traditional BEM formulation for time-domain scalar wave propagation analysis is extended to a new class of problems. A procedure to consider linear time interpolation for boundary tractions is worked out. Time discontinuities are included by adding to the standard BEM equation the integral equation for velocities. Numerical examples are presented in order to assess the accuracy of the proposed formulation.
๐ SIMILAR VOLUMES
The complete expressions corresponding to space and time derivatives of Volterra's integral representation of the time-dependent scalar wave equation are presented in this paper. The concept of finite part of an integral is used in order to compute boundary kernels contributions. Time integration of
Analysis of elastic wave propagation in anisotropic solids with cracks is of particular interest to quantitative nondestructive testing and fracture mechanics. For this purpose, a novel time-domain boundary integral equation method (BIEM) is presented in this paper. A finite crack in an unbounded el