Finite Element Method Solver

INTRODUCTION

This project is implementation of my master degree thesis task. The program is to solve flat truss using FEM (Finite Element Method).

Program was developed on Ubuntu Linux 18.04 LTS (WSL 2) but is easy to port into Windows.

TOOLS

Following tools were used:

gcc (g++)
GNU Make (build-essential)
CMake
git
Visual Studio Code

LIBRARIES

Following libraries need to be installed for correct compilation:

LAPAK

$ sudo apt install liblapack-dev

OpenBLAS

$ sudo apt install -y libopenblas-dev libopenblas-base

ARPACK

$ sudo apt install -y libarpack++2-dev libarpack++2c2a libarpack2 libarpack2-dev

SuperLU

$ sudo apt install -y libsuperlu libsuperlu-dev libsuperlu-dist-dev libsuperlu-dist5 libsuperlu5

OpenMP

$ sudo apt-get install libomp-dev

Armadillo

$ wget http://sourceforge.net/projects/arma/files/armadillo-10.1.2.tar.xz
$ tar -xvf armadillo-10.1.2.tar.xz
$ cd armadillo-10.1.2/
$ cmake .
$ sudo make install

simple-svg - single header library https://github.com/adishavit/simple-svg

COMPILATION

Lazy way to run the project:

$ ./rebuild

Just build the solver app:

$ make build

or simply

$ make

Remove created files:

$ make clean

USAGE

Display usage instructions:

$ ./solver

Solve example input truss using dense sfiffness matrix:

$ ./solver input/97.truss -dense

Solve example input truss using sparse sfiffness matrix:

$ ./solver input/97.truss -sparse

Generate new truss (about 5000 elements, 5m long):

$ ./generator 5000 5 input

Generate test cases automatically: