TY - GEN
T1 - Time domain BEM-FEM coupling for seismic soil-structure interaction analyses conceived for an ansys-matlab workflow
AU - Taddei, Francesca
AU - Chocholaty, Bettina
AU - Muller, Gerhard
N1 - Publisher Copyright:
© 2020 European Association for Structural Dynamics. All rights reserved.
PY - 2020
Y1 - 2020
N2 - In this contribution, we present the implementation of the coupling between the Finite Element Method (FEM) and the Boundary Element Method (BEM) in the time domain, for the analysis of the Soil-Structure Interaction (SSI) in the three dimensional space. The Boundary Element Method is based on the transient fundamental solutions for the half-space. The coupling between the BEM and the FEM is obtained using the soil's stiffness matrix and the soil reaction forces, which result from a convolution integral. The coupling is implemented linking the software MATLAB with the software ANSYS. The system of equations is solved in ANSYS and within the solution step MATLAB is activated to calculate the soil's stiffness matrix and the interaction forces at the interface between soil and structures at the current time step. Verification examples for static and dynamic cases are presented. A case study for a seismic excitation is presented to show the applicability of the proposed method.
AB - In this contribution, we present the implementation of the coupling between the Finite Element Method (FEM) and the Boundary Element Method (BEM) in the time domain, for the analysis of the Soil-Structure Interaction (SSI) in the three dimensional space. The Boundary Element Method is based on the transient fundamental solutions for the half-space. The coupling between the BEM and the FEM is obtained using the soil's stiffness matrix and the soil reaction forces, which result from a convolution integral. The coupling is implemented linking the software MATLAB with the software ANSYS. The system of equations is solved in ANSYS and within the solution step MATLAB is activated to calculate the soil's stiffness matrix and the interaction forces at the interface between soil and structures at the current time step. Verification examples for static and dynamic cases are presented. A case study for a seismic excitation is presented to show the applicability of the proposed method.
KW - BEM-FEM coupling
KW - Boundary Element Method
KW - Finite Element Method
KW - Soil-Structure Interaction
KW - Time Domain
UR - http://www.scopus.com/inward/record.url?scp=85098741167&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85098741167
T3 - Proceedings of the International Conference on Structural Dynamic , EURODYN
SP - 2985
EP - 3004
BT - EURODYN 2020 - 11th International Conference on Structural Dynamics, Proceedings
A2 - Papadrakakis, Manolis
A2 - Fragiadakis, Michalis
A2 - Papadimitriou, Costas
PB - European Association for Structural Dynamics
T2 - 11th International Conference on Structural Dynamics, EURODYN 2020
Y2 - 23 November 2020 through 26 November 2020
ER -