REM3D is a full 3D rheological simulation software dedicated to Polymer applications.

REM3D is a software package developed through a joint research program with ARKEMA, SCHNEIDER ELECTRIC INDUSTRIES, ESSILOR INTERNATIONAL, FCI and PLASTIC OMNIUM AUTO EXTERIEUR, industrial partners in the chemical, electrical and optical fields, automotive industry, and the CEMEF, a leading french university.

SNECMA PROPULSION SOLIDE and DOW BENELUX BV also join the consortium during 2003.

Use of   REM3D leads to optimal mold design and process tuning, reducing time to market and increasing the possible amount of prospective testing to answer a given manufacturing problem.

REM3D is the leading 3D Finite Element software that provides the first 3D results in plastic injection molding.

REM3D is based on the combination of three different finite element equation solvers, namely :

a flow (Stokes) solver
a flow front transport equation solver,
and a heat equation solver.

REM3D features two standard behavior laws used in the modelling of injection molding:

thermo-pseudoplastic power law

thermo-dependent Carreau-WLF law and Cross-WLF law

Variation of density due to compressibility introduces a new unknown field and consequently a new equation: the state law.

On the other hand, viscoelasticity is taken into account through the extra-stress tensor, determined by an appropriate constitutive law. The viscoelastic constitutive equation is described with a differential model. REM3D takes into account compresibility and viscoelasticity simultaneously.

The finite element method is used to solve the thermo-mechanical equilibrium equations at each time step of the process. The entire cavity to be filled is meshed with tetrahedral elements using a fully automatic 3D mesh generator.