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WITHDRAWN Seismo-Vlab: An Open-Source Finite Element Platform for Site Response Analyses of Km-Scale Features With Random Properties

Description: 

WITHDRAWN We present, Seismo-VLAB (SVL), an open-source C++ multi-platform finite element software designed to optimize km-scale (mesoscale) simulations of nonlinear wave propagation and dynamic response of earth systems and structures. High-fidelity simulations of such problems require advanced models that can capture the heterogeneity, geometric irregularity and nonlinearity of soils; and parallel computing capabilities to optimize the computational cost. These features are not generally available in open-source earthquake engineering software packages. SVL uses state-of-the-art tools to achieve optimal reliability and efficiency of nonlinear wave propagation problem solving; all the while staying centered on object-oriented paradigms to maintain a simple, fast,and extendable design. The most important features of the software include dynamic nonlinear solvers for time-domain analyses of inelastic problems; cutting edge parallel linear system solvers, Message Passing Interface (MPI) parallelization, and domain decomposition for computational efficiency; perfectly matched layer (PML) absorbing boundary conditions; domain reduction for modeling wave-field incoherency in truncated domains; and plasticity models of soils and structures that require few parameters for calibration. In this presentation, we use SVL to compute the dynamic response of earth systems with surface and subsurface topographic irregularities and random properties.

Session: Ground Truthing Multidimensional Site Response Analyses at Borehole Array Sites

Type: Oral

Date: 4/20/2023

Presentation Time: 05:30 PM (local time)

Presenting Author: Domniki Asimaki

Student Presenter: No

Invited Presentation: 

Authors