New stable version SIFEL 2012 released! Download new version click here! News:   15/02/2012 Input files HOWTO SVN - Subversion for SIFEL (version control system) New C++ Documentation added New version 2012 released (SVN version no. 409)

SIFEL - Simple Finite Elements is finite element code for solving mechanical, transport and coupled problems. SIFEL is free software released under GNU General Public Licence (GPL).

Basic features:

• modular architecture - GEFEL (general finite element tools), MEFEL (finite elements for mechanics), TRFEL (finite elements for transport problems), METR (finite elements for coupled problems), PARGEF (parallel version for general finite element tools), PARMEF (parallel version of finite elements for mechanics), PARTRF (parallel version of finite elements for transport problems), PARMETR (parallel version of finite elements for transport problems)
  

• variety of problem solutions - linear static problems, eigenvalue problems, forced vibration, non-linear static, time-dependent non-dynamic problems, earth pressure, linear layred static problems

• variety of implemeted material models - elasticity, plasticity, damage models, creep, viscoplaticity, microplane model, models for soils, heat and moisture transfer models, salt transfer models
  

• variety of solution algorithms - cutting plane  method, modified newton - raphson, full newton -  raphson, explicite or implicite algoritms, Crank-Nicholson
  

• different solvers (solution of system of equations) and storing types - skyline, double -skyline, LU, LDL, gradient methods, sparse direct solver,
  

• variety of finite element types - bar, beam, trinagular, quadrilateral, tetrahedral, hexahedral,  shell and plate elements,  DST, CCT, axisymmetric elements, linear and quadratic approximation functions, rotation dofs
  

• support for parallel computing - Domain decomposition method, FETI, DPFETI, SC method

• various output types - text, graphical (GiD, OpenDx, FEMCAD), graphs and tables
  

• support for optimization methods - cenetic algorithms, simulated annealing
  

• support for homogenization - computation of overall mechanical properties  for heterogeneous materials