3D viscous-spring artificial boundary in time domain

摘要: After a brief review of studies on artificial boundaries in dynamic soil-structure interaction, three-dimensional viscous-spring boundary (VSAB) the time domain is developed this paper. First, 3D VSAB equations normal and tangential directions are derived based elastic wave motion theory. Secondly, numerical simulation technique along with condition studied. Finally, examples some classical problems presented results compared associated theoretical solutions, demonstrating that high precision adequate stability can be achieved by using proposed VSAB. The conveniently incorporated general finite element program, which commonly used to study interaction problems.