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Dynamic Stiffness of the Scaled Boundary Finite Element Method for Non-Homogeneous Elastic Space  

Lee, Gye-Hee (목포해양대학교 해양시스템공학부)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.23, no.2, 2010 , pp. 165-173 More about this Journal
Abstract
In this paper, the dynamic stiffness of scaled boundary finite element method(SBFEM) was analytically derived to represent the non-homogeneous space. The non-homogeneous parameters were introduced as an expotential value of power function which denoted the non-homogeneous properties of analysis domain. The dynamic stiffness of analysis domain was asymptotically expanded in frequency domain, and the coefficients of polynomial series were determined to satify the radiational condition. To verify the derived dynamic stiffness of domain, the numerical analysis of the typical problems which have the analytical solution were performed as various non-homogeneous parameters. As results, the derived dynamic stiffness adequatlly represent the features of the non-homogeneous space.
Keywords
scaled boundary analysis; non-homogeneous elatic space; dynamic stiffness; asymptotic expansion;
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Times Cited By KSCI : 3  (Citation Analysis)
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