science/tfel-edf 3.2.1.1_7 DragonFly

The aim of this version is to work with Code_Aster. If you want to use TFEL/ MFront alone, you could get a newer version from science/tfel.

`MFront` is a code generator which translates a set of closely related domain specific languages into plain C++ on top of the `TFEL` library. Those languages covers three kind of material knowledge:

• material properties (for instance the Young modulus, the thermal conductivity, etc.)
• mechanical behaviours. Numerical performances of generated mechanical behaviours was given a particular attention. Various benchmarks shows that `MFront` implementations are competitive with native implementations available in the `Cast3M`, `Code-Aster` and `Cyrano3` solvers.
• simple point-wise models, such as material swelling used in fuel performance codes.

`MFront` comes with an handy easy-to-use tool called `MTest` that can test the local behaviour of a material, by imposing independent constraints on each component of the strain or the stress. This tool has been much faster (from ten to several hundred times depending on the test case) than using a full-fledged finite element solver.