/TD-BEM

Time domain boundary element code for elastodynamics, using Stokes' solution as the Green's function.

Primary LanguageC++MIT LicenseMIT

TD-BEM

A Parallel C++ Time-Domain Boundary Element code for elastodynamics analysis of solids;

External libraries

  • MPI for parallel programing;
  • Petsc for solving large-scale linear equation system;
  • Results can be written in VTK format and visualized with paraview;

Key Boundary Element Techniques

  • Regularization by Extracting the hyper-singular part of the Green's function;
  • Singluar transformation for weakly-singluar element;
  • Time marching with weighted collocation and higher-order projection;

How to compile it

  • Step 1: Specify the directories of include and library for MPI and PETSC in the CMakeFile
  • Step 2: mkdir build; cd build;
  • Step 3: cmake ..; make

How to use it

  • mpirun -np 2 ./TD-BEM inputfile.txt
  • Example of inputfile can be found in folder named "Geometry"

How to do Finite Element - Boundary Element coupling

  • Output the boundary element matrices from the main()
  • Use the FE-BE code to do FE-BE coupling