-
Astani CEE Oral Dissertation Defense
Tue, Oct 23, 2012 @ 02:00 PM - 04:00 PM
Sonny Astani Department of Civil and Environmental Engineering
Conferences, Lectures, & Seminars
Speaker: Roshanak Varjavand, CE Ph.D. Candidate
Talk Title: Numerical Simulation of Seismic Site Amplification Effects
Abstract:
The concept of substructure deletion proposed for the analysis of a rigid foundation was adapted for the analysis of site amplification effects in alluvial valleys. A major modification was made for the present application such that the boundary integration equation method was used for both the finite size interior problem and semi-infinite exterior wave radiation problem. The modification was made to reduce the possible incompatibility between the finite element method, a volume formulation, and the boundary integral equation method, a surface formulation. The substructure deletion concept allows simple, century-old, basic Green's Functions to be used to produce excellent wave scattering results for topographical irregularities as well arbitrarily shaped alluvial valleys overlying stiffer bedrock. The concept is applicable to three-dimensional geometries as well as two-dimensional problems. Results are given for incident SH, P, SV and Rayleigh waves.
Advisor: Professor Hung Leung Wong
Location: Kaprielian Hall (KAP) - 209
Audiences: Everyone Is Invited
Contact: Evangeline Reyes
