PU Foam Expansion
3D Injection Molding
Complex Products
AAA Re-meshing
Materials Database




REM3D® is the simulation solution for complex 3D designs, and the only solution available today for Polyurethane foam expansion. 


REM3D® features a unique re-meshing technique known to be the most effective and reliable on the market. The Adaptive Anisotropic Automatic (AAA) re-meshing technique removes the burden and complexity of defining the mesh. The solver takes care of it for you. The mesh is dynamically and automatically adapted during the simulation to get the most accurate results while decreasing computation time.

Set up with REM3D® is as easy as importing the geometries, defining the material and process parameters and running the simulation.
Prepping the mesh is no longer necessary.

REM3D® solver is unique. It is a purely Finite Element Method (FEM) solver that solves all physical equations at once for the same increment. For the users, it is the guarantee that the results are as accurate as can possibly be since any parameters deviation is coupled with others in a unique FEM resolution. With AAA re-meshing technique, REM3D® is the ultimate solution to take into consideration any thickness ratio in your product. Any gradients will be caught by re-meshing automatically and accurately in the areas needing more FEM elements to capture the physical phenomena.

REM3D® is an all-inclusive software, which comes by default with the complete set of capabilities. 
The PU foam expansion simulation capabilities is sold separately since it requires very advanced models developed in partnerships with DOW Research Center.

To understand the way we license our software, please refer to the Licensing Policy section.


REM3D® re-meshing technique is unique. REM3D® is a Finite Element Method code, which requires precise re-meshing. The result is just a revolution for the injection molding industry . Thanks to its AAA Re-meshing technique, REM3D® can handle the most challenging shapes you might think of. REM3D® makes it possible for you to test and validate your most complex designs before going to production.

With REM3D® Adaptive, Anisotropic and Automatic technique, re-meshing is fully integrated with the simulation computation. Moreover, the re-meshing is fully parallelized delivering more accurate 3D results at a very competitive computation time.

REM3D® makes the analysis and prediction of complex phenomena like "Jet buckling"

or "fluid buckling" possible. Until now, they were undetectable with existing 2.5D

simulation software. 

The video to the right of the screen shows the automatic mesh adaptation along

the jet. The number of nodes remains low which ensures faster computation time

but still provides very accurate results as demonstrated by the visualization of

toroidal oscillations, characteristical of viscous fluids on a plane surface.

REM3D® shines for complex parts with large variations of thickness ratios.

You will not leave any of your parts behind because your current simulation

software cannot handle large thickness variations.

REM3D® AAA Re-meshing technique is based on error minimization and was

developped by the CEMEF, Transvalor's partner for scientific researches and

digital methodologies applied to material forming.



Technical Paper





Until REM3D® introduction, the Polyurethane foam expansion process could not be simulated. REM3D®, developed in partnership with DOW provides, at last, a unique simulation solution for those companies producing PU foam injection-expansion products

REM3D® simulates injection and expansion processes simultaneously. The software enables optimum mass for full filling determination, ideal venting and/or inserts positions, process balancing optimization and final density distribution through the thickness to optimize robustness of the part.

The PU foams are used more and more for automotive parts, presenting important thickness ratios that only REM3D® can handle. Since PU foams parts are used for key structural components, it is important to simulate before production to reduce mold design lead time, and cost.

REM3D provides the capability to simulate injection processes with many fluids without limits. Thanks to the AAA Re-Meshing technique, mold/part coupled thermal resolution and an accurate filling model, Rem3D® predicts gas (or water) core thickness with realistic smooth skin effect in the Gas or Water Assisted injection molding process. Export of the final hollowed and warped part in .stl file is available for further mechanical computation. REM3D® also makes it possible to simulate sequential co-injection process for a large set of thermoplastics and/or thermosets materials. Each material distribution are predictive and can be displayed (grouped or dissociated) and analyzed.

With REM3D® AAA Re-meshing technique, the evolutive free surfaces where the gas is injected are refined with the best accuracy possible.


REM3D® not only simulates co-injection brilliantly, it can also compute any number of polymers you want to use for your product. Once again, the AAA Re-meshing technique is key here since it is the re-meshing that manages the intersections between several polymers. It is crucial to refine each melt surface to capture the true displacement of the polymer in the final product.


The material definition is the cornerstone of simulation. REM3D® comes with a rich database of materials, but more importantly this database is evolutive. 

* Thermosets & Thermoplastics: REM3D® works with any available laws that describe the behavior of a thermoset and thermoplastic.


* PU Foams: PU foams are new for simulation, no other software is capable of simulating the foaming process. After years of development in partnership with DOW, Transvalor has developed a PU foam characterization model for solid and liquid foams. This characterization can be done on demand at Transvalor. Alternatively the procedure and information about the necessary equipment can be provided to customers.


Since 1984, Transvalor has repeatedly proven to be the expert in Finite Elements Method (FEM) technologies. Transvalor is born of Research and has maintained a strong association with the Center for Material Forming (CEMEF), a research center of the prestigious MinesParisTech, whose main activities are centered around material forming and numerical computation. This partnership provides a constant flow of advanced scientific developments that translate into innovative new functionalities to Transvalor’s products for the benefit of our customers.

Meshing techniques are the at the center of the Transvalor/CEMEF partnership. Meshing and re-meshing techniques are the make-or-brake of FEM simulations. We believe there is no other vendor to this day able to compete with the technology of our re-meshing algorithms, and their reliability.

What it means for the end user, is the guarantee that the simulation will not crash. Crashes are a waste of time, and bring a degree of frustration to the designer. Our philosophy is that crashes have no place in our solutions. The re-meshing technique is the most common reason for crashes. When the process parameters are entered properly, the simulation should complete without incident. Our expertise in this area makes us the most reliable solution on the market.

In addition to our re-meshing technique, our solvers have been crash-proofed for over three decades. Our developers pay particular attention to the quality of their coding to ensure the highest solver quality possible. Our development team continuously works on optimizing the code to decrease the computation time, and remove potential risk of conflict.

Finally, our experience in plastic and PU foam for more than 20 years makes Transvalor the most knowledgeable, and reliable partner in FEM simulation solutions. We have worked with your industry long enough to understand your priorities, your challenges. We work for you and with you, to bring you the best simulation solution for your business.


Scalability for a simulation solution such as REM3D® is the software ability to use more computational cores in order to reduce the global computation time of the simulation.

REM3D® is known to be one of the fastest 3D simulation software on the market at equal number of computational cores, but where REM3D® stands out in a crowd of other simulation software is its ability to efficiently use large number of

cores for simulation calculation.

With multi-processor computers becoming significantly more affordable, larger and larger computing
server configurations are finding their ways into engineering departments. REM3D® will efficiently
scale up to 64 cores with sustained performance gain when cores are added. When others choke at
the 8 processor mark, REM3D® keeps climbing.  REM3D® is the most capable simulation sotware
to fully utilize the new computing capacity available to engineering departments. 

REM3D® offers an un-matched parallel efficiency already and our teams are unyieldingly working to
make it even better. 

But, although using more cores to speed-up simulation computations is generally efficient to improve
computation time, it is not the only solution, Transvalor is also working in other directions.

Improving the efficiency of our solvers is an every day concern.