Fea/Fem packages(open source and comercial free packages with limited features, what is Fem)

(comercial packages =no sources will disapear out of this list in the future as well as Fortran packages, Fortran to C converter here, direct link,src)

Adventure was developped as an advanced general-purpose computational mechanics system for large-scale analysis and design during Aug. 1997 - March 2002 in the "Computational Science & Engineering" field selected by the "Research for the Future (RFTF)" program sponsored by the Japan Society for the Promotion of Science (JSPS). Adventure is Open Source.
Aladin is a computational toolkit for the interactive matrix and finite element analysis of large engineering structures, particularly building and highway bridge structures. Aladdin views finite element computations as a specialized form of matrix computations, matrices as rectangular arrays of physical quantities, and numbers as dimensionless physical quantities. ALADDIN Version 2.1 is the property of Mark Austin,Xiaoguang Chen and Wane-Jang Lin.Permission is granted to use, modify, and distribute the software freely.
CAELinux A DVD image of Linux & Code Aster (in Fortran) which must be burnt as a bootable DVD. No installation required, simply boot-up from the DVD to have a version of Linux on your normal computer and Code Aster will be ready to run on your computer, it also uses the Salome open source pre & post-processor. Non-linear thermo-mechanics, coupled fluid-structure dynamics, sismic / non-linear explicit dynamics, contact and visco-plasticity simulation. Platform - Linux
CalculiX Open Source FEA project. Solver uses a partially compatible ABAQUS file format. The pre/post-processor generates input data for many FEA and CFD applications.
CALFEM CALFEM is an interactive computer program for teaching the finite element method (FEM). The name CALFEM is an abbreviation of "Computer Aided Learning of the Finite Element Method".
Code Aster: French software written in Python and Fortran, GPL license. Linear & non-linear static/dynamic, thermal & fluid analysis. You will need to compile the code for your machine. Software is in French.Created by EDF(Electricité de France). Wiki, Platform - Linux, Solaris and IRIX 64 bits
Code_Aster for Windows Code_Aster Windows is the Windows port of the OpenSource FEM solver Code_Aster (www.code-aster.org).
deal.II is a C++ program library targeted at the computational solution of partial differential equations using adaptive finite elements. It uses state-of-the-art programming techniques to offer you a modern interface to the complex data structures and algorithms required. The main aim of deal.II is to enable rapid development of modern finite element codes, using among other aspects adaptive meshes and a wide array of tools classes often used in finite element program. Wiki. Open Source license. Aspect: Advanced Solver for Problems in Earth's ConvecTion download here, svn here
DUNE, Distributed and Unified Numerics Environment GPL V 2 , written in C++ with Run-Time Exceptions.
Elmer FEM solver: Open source multiphysical simulation software developed by Finnish Ministry of Education's CSC, written primarily in Fortran (and C, C++). Brochure. See also here.
Escript/Finley: Fast Finite Elements for Partial Differential Equations in python
FEAPpv is a general purpose Fortran finite element analysis program which is designed for research and educational use. FEAPpv is small version of FEAP. (For FEAP contact feap@berkeley.edu for further information and distribution costs.)
FeapUI FeapUI gives a graphical easy-to-use interface to the fem (finite element method) programm FEAP by R.L. Taylor (www.ce.berkeley.edu/~rlt/). FeapUI runs on Linux/Unix and Windows with java. This gives you more "Feaping" and lesser maual reading.
FEAST is a software package designed to solve large scale Finite Element based problems in a highly efficient way across a wide variety of modern hardware architectures. FEAST is designed with both vertical and horizontal efficiency in mind. Horizontal efficiency means good scalability across a wide variety of MPI implementations and cluster computers. Vertical efficiency targets single-node performance with platform-specific Sparse Banded BLAS implementations for good memory performance and cache efficiency. FEAST also exploits the tremendous floating point performance and memory bandwidth of modern graphics processors (GPUs) as numerical co-processors. No current plans to publicly release FEAST in the near future, only preprocessor etc.
FEBio, Finite Elements for Biomechanics.
FElt FElt knows how to solve linear static and dynamic structural and thermal analysis problems; it can also do modal and spectral analysis for dynamic problems. FElt's element library currently contains fourteen elements. open source.
Feel++ Feel++ (formerly known as Life) is a C++ library for partial differential equation solves using generalized Galerkin methods i.e. fem, hp/fem, spectral methods.
FEniCS Project: a LGPL-licensed software package developed by American and European researchers
FFEP: The Free Finite Element Package is a modular designed collection of C libraries. These libraries contain numerical methods required when working with linear and quadratic Finite Elements in two dimensions. FFEP works on GNU/Linux and is portable to every system where the Meta Matrix Library (MEML), which means, LAPACK and BLAS are available. SF page.
Felyx FELyX is developed under the topic of numerically efficient Finite Element calculation. Object oriented structures implemented in C++. GNU General Public License. All relevant elements for static structural analyses. Model (Natural Frequency) analysis of structures. Profile / bandwidth reduction algorithms based on graph library of Boost. Efficient matrix storage schemes using the Matrix Template Library (MTL).Efficient solvers.
Femlib c++ Object-oriented FE library, sparse matrix library etc download per anonymous ftp: ftp://ftp.usc.edu/pub/C-numanal/femlib-1.1.tar.gz
Femlisp FEMLISP is a Common Lisp framework for solving partial differential equations with the help of the finite element method (FEM). Very liberal license (modified BSD)
FEMOCTAVE A very simple FEM package for Octave. It solves second order differential equations in two variables, using first order elements.
FEMSET C and Fortran versions for education and study. MS-Visual-C++ version: WFemSet
freeFEM C++ freeFEM++: the current version ( 2d and 3d), which contains many improvements over previous versions and freeFEM3D: the 3D version based on ficticious domain. Online version: online thanks to the FFW. FreeFem++cs: integrated environment for FreeFem
Geocrack The focus of Geocrack is modeling flow in fractured rocks. The present application is geothermal reservoirs, where such capability is needed to simulate systems in which re-injection is used to circulate the fluid.
GeoFEM Multi-purpose / multi-physics parallel finite element solver for the solid earth. Compilation of the GeoFEM source code (version 4.0) requires C++ and Fortran 90 compilers and an implementation of MPI. The code has been compiled and tested under the following OS: Linux, Digital UNIX 4.0x. For further information about platforms and configuration see the GeoFEM website. papers: "Parallel FE Solid Earth Simulator Tiger and Snake" ,"Large-Scale Parallel Finite Element Analysis for Solid Earth Problems by GeoFEM" , "FY2002 Report of ES Results" , GeoFEM Final Report(Japanese). The source code may be downloaded on application from the GeoFEM homepage.
GetFEM++ GetFEM++ is basically a generic C++ finite element library which aims to offer the widest range of finite element methods and elementary matrix computations for the approximation of linear or non-linear problems, possibly in hybrid form and possibly coupled. Two strong points of GetFEM++ are structural mechanics (in particular contact mechanics) and taking into account discontinuities by fictitious domain methods of XFEM type (eg cracking).GetFEM++ is free software.
Haplo Mécanique élastique en petites déformations, Stockage de matrices en mode "ligne de ciel", Solveur direct de type LDLT, Solveur itératif de type gradient conjugué préconditionné, Renumérotation des noeuds, Prise en compte de conditions aux limites par dualisation, source available, Licence??.
HMD is for computing the answer to a second-order, partial differential equation in a continuum media. And the continuum media is, broadly speaking, a special case of a Potential Field problem. Command-line program under Gnu GPL.
Hermes C++/Python library for rapid development of space- and space-time adaptive hp-FEM solvers. HP-Fem: http://www.hpfem.org/main/
iMOOSE iMOOSE is intended as a general purpose application framework for the development of Finite Element solvers and related tools. It mainly focuses on electromagnetic problems arising from the design of electrical machines. Requires Qt3. Open source.
Impact Open source free explicit FE solver for high velocity & large deformation analyses such as car crashes, press operations etc. Java, GNU license, Platform - All operating systems

J L Analyzer Fully functional, free FEA system limited to 300 nodes. Static linear as well as non-linear stress analysis, thermal analysis, dynamic analysis, thermal and seepage analysis. It comes with an integrated training Wizard and has a powerful CAD modeling interface.
Created by AutoFEA Engineering Software Technology,Inc. Platform - Windows

KASKADE Family of adaptive FEM codes in 2D and 3D for solution of elliptic (KASKADE) or parabolic (KASTIO) pdes. C, C++ source. FTP-server no more active. Research code available on request.
KFEM Kde application. The graphics will be handled by Opengl. Whereas the FEM solver will be served through CORBA. Status?? Open Publication License
L I S A LISA is suitable for linear static, vibration, dynamic response, steady/transient heat transfer, buckling, incompressible fluid flow, seepage, electromagentic, electrostatic, D.C current & acoustic analysis. Import and automesh CAD solid & surface models. 2D automesher, hydrodynamic bearing modeler, pressure vessel component templates. An ActiveX port for your own client programs to call the internal LISA functions including calling it's sparse matrix solver. Extensive documention. User manual explains everything fea in simple english. Free version 1300 node limit. Created by LISA-Finite Element Technologies Platform - Windows

LUGR LUGR methods are meant for the efficient computation of rapidly varying temporal and spatial solution transitions by automatic local grid adaptation (more). Licence?

MGGHAT MultiGrid Galerkin Hierarchical Adaptive Triangles: Fortran program for the solution of second order linear elliptic pdes. Download by anonymous ftp from ftp://netlib2.cs.utk.edu:/pdes/mgghat

MODFE 2-dimensional FE program for groundwater flow under saturated conditions.
MODULEF The MODULEF finite element library is an extensive finite element system developed under the leadership of the French Institut National de Recherche en Informatique et en Automatique (I.N.R.I.A.). Modular organization, designed for adaptability and extendability , full access to source code, rapid incorporation of current theoretical developments, runs on workstations, mainframes, and supercomputers
NGSolve is a finite element library. It must be connected to a mesh handler such as Netgen. NGSolve is written in C++, and is open source based on the LGPL license. Some features of NGSolve: Elements of arbitrary order for any shape (segm, trig, quad, tet, prism, pyramid, hex), Scalar elements and vector-valued elements for H(curl) and H(div), Integrators for Heat-flow, Elasticity, Navier-Stokes, Maxwell, etc. etc
OOFEM: Object Oriented Finite EleMent solver, written in C++, GPL v2 license
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OpenFem: Description here.
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OpenFOAM (Field Operation And Manipulation). Originally for CFD only, but now includes finite element analysis through tetrahedral decomposition of arbitrary grids.

OpenSees is an Open System for Earthquake Engineering Simulation
ParaFEM New BSD License. ParaFEM formed the basis for Chapter 12 in Smith I.M. and Griffiths D.V. "Programming the Finite Element Method", Wiley, 2004. ParaFEM is also used for parallel boundary element analysis in Beer G., Smith I.M. and Duenser C. "The Boundary Element Method with Programming", Springer, 2008.
SFEPY simple finite elements in Python
SOFA The SOFA architecture relies on several innovative concepts, in particular the notion of multi-model representation. In SOFA, most simulation components (deformable models, collision models, instruments, ...) can have several representations, connected together through a mechanism called mapping. Each representation can then be optimized for a particular task (e.g. collision detection, visualization) while at the same time improving interoperability by creating a clear separation between the functional aspects of the simulation components. As a consequence, it is possible to have models of very different nature interact together, for instance rigid bodies, deformable objects, and fluids. At a finer level of granularity, we also propose a decomposition of physical models (i.e. any model that behaves according to the laws of physics) into a set of basic components.
SOLID simple Galerkin finite-element solution of the time-dependent equations governing the state of a plasma confined between two absorbing plates. There are source functions for heat and particles, in the presence of which the plasma approaches a steady state
TOCHNOG - a free explicit/implicit FE program. Results files for IBM's open sourced data explorer can be generated. Look in http://www.opendx.org for the data explorer visualisation program
traglast Traglast is a free finite-element-solver for linear static 2D problem. It provides also an algorithm to calculate boundary plastic loads of steal structures. Traglast supports a simple GUI.
WARP3D is under continuing development as a research code for the solution of very large-scale, 3-D solid models subjected to static and dynamic loads. Some features in the code oriented toward the investigation of fracture in metals include a robust finite strain formulation, a general J-integral computation facility (with inertia, thermal, face loading), interaction integrals for computation of linear-elastic fracture parameters (stress intrensity factors and T-stress), very general element extinction and node release facilities to model crack growth, nonlinear material models including viscoplastic and cyclic, cohesive elements and cohesive constitutive models, hydrogen effects on plasticity, and the Gurson-Tvergaard dilatant plasticity model for void growth. Source code GNU license.

Z88: FEM-software available for Windows and Linux/UNIX, written in C, GPL lic.

Comercial Fea/Fem packages

See wickipedia article.

Free DEM packages with or without GPU support

Ascalaph Molecular dynamics with fourth order symplectic integrator.

dp3D (discrete powder 3D), DEM code oriented toward materials science applications (powder compaction, powder sintering, ...).

ESyS-Particle ESyS-Particle is a high-performance computing implementation of the Discrete Element Method released under the Open Software License v3.0. To date, development focus is on geoscientific applications including granular flow, rock breakage and earthquake nucleation. ESyS-Particle includes a Python scripting interface providing flexibility for simulation setup and real-time data analysis. The DEM computing engine is written in C++ and parallelised using MPI, permitting simulations of more than 1 million particles on clusters or high-end workstations.

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GPULAMMPS GPU enhancements to LAMMPS 
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LAMMPS very fast parallel open-source molecular dynamics package with GPU support also allowing DEM simulations. LAMMPS Website, Examples .

LAMMPS-ICMS Axel Kohlmeyer's add-ons to LAMMPS

LIGGGHTS code based on LAMMPS with more DEM features such as wall import from CAD, a moving mesh feature and granular heat transfer. LIGGGHTS Website
SDEC Spherical Discrete Element Code.
LMGC90 Open platform for modelling interaction problems between elements including multi-physics aspects based on an hybrid or extended FEM – DEM discretization, using various numerical strategies as MD or NSCD.
Pasimodo package for particle-based simulation methods. Simulation of granular media, such as sand, gravel, granulates in chemical engineering and others. Can be used for the simulation of many other Lagrangian methods, e.g. fluid simulation with Smoothed-Particle-Hydrodynamics.
PLUMED free energy calculation with LAMMPS
Yade (Yet another Dynamic Engine) modular and extensible toolkit of DEM algorithms written in c++. Tight integration with Python gives flexibility to simulation description, real-time control and post-processing, allows introspection of all internal data. Can run in parallel on shared-memory machines using OpenMP. Yade is historically related to SDEC.