Converse at a Glance

CONVERSE is an easy-to-use software that bridges the gap between injection molding simulation and mechanical simulation. The software is used in preprocessing. The multiscale modeling approach enables to consider the complex material behavior of plastics with only a minor additional effort. A mapping of anisotropic part properties like fiber orientation, weld lines and residual stresses as well as a mapping of scalars like pressures, temperatures, wall thicknesses and shrinkage + warpage is possible. As input the software needs the results of an injection molding simulation, the model data of the structural simulation and some basic material properties. Interfaces are provided for various solvers.

CONVERSE enables the consideration of the anisotropic mechanical behavior of injection molded short-fiber-reinforced plastics parts in FE analysis. Hence part stiffness as well as failure can be predicted more accurate. Conventional isotropic approaches do not consider the influences of fiber orientations. With the pressure mapping capability an assessment of mold deformations, e.g. core shifts, and also of the mechanical stresses within inserts during the filling phase can be made. The temperature mapping capability provides the possibility to consider the thermal loading of temperature-sensible inserts. The mapping of residual stresses makes it possible to consider initial stress states induced by processing within the strength assessment of the part. The mapping of shrinkage, warpage and residual stresses makes it possible to conduct structural analyses with the actual part geometry opposed to the ideal CAD geometry.

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Use Converse through the Altair Partner Alliance


  • More accurate simulation of part stiffness and strength assessment compared to isotropic approaches
  • Consideration of the influence of gate positions onto the mechanical behavior (position of weld lines)
  • Consideration of the influence of residual stresses onto the mechanical behavior
  • Improved mold and part design for parts with pressure- and temperature-sensitive inserts or molds with easy deformable cores
  • Easy, automatic assignment of wall thicknesses as shell properties for mechanical FE models
  • Taking into account the real part shape by using shrinkage and warpage results
  • Easy-to-use even for occasional users
  • See-through and open data handling
  • No User-Subroutine required
  • Fast and stable simulation
  • High scalability (multi processor capability)


  • Molding simulation solver interfaces to: Cadmould, Inspire Mold, Moldflow, Moldex3D, SIGMASOFT, Simlab Mold, Simpoe Mold, SOLIDWORKS Plastics, 3D TIMON
  • Mechanical simulation solver interfaces to: Abaqus, ANSYS Mechanical, LMS Samcef, LS-DYNA, MSC Marc, MSC Nastran, NX Nastran, OptiStruct, PERMAS, Radioss
  • CFD solver interface to ANSYS Fluent
  • Strength assessment interfaces to S-Life Plastics, FEMFAT, MF GenYld + CrachFEM, nCode, LMS Virtual.Lab
  • Flexible ASCII data import via Native Converse Data Exchange Interface
  • Non-linear anisotropic material model for Abaqus, ANSYS Mechanical, LS-DYNA, Radioss
  • Mapping of fiber orientation, weld lines, pressures, temperatures, residual stresses, shrinkage and warpage, wall thicknesses (for shell elements)
  • Mapping between different mesh topologies
  • Graphical evaluation of mapping quality
  • 3D-visualization and manipulation of the imported models and results
  • Calculation of the anisotropic material properties (stiffnesses and thermal expansion coefficients) of the composite based on fiber and matrix data
  • Material database for polymer grades with existing anisotropic material models included
  • Automated generation of all required FE input data
  • Consideration of inserts possible
  • Consolidation of different molding simulations into single structural model (e.g. welded parts)

Features may vary depending on used solvers.

What Users say

For the simulation of short-fiber-reinforced plastics parts we use CONVERSE consequently. Due to that we are able to improve the quality of our simulations significantly. This helps us to design our parts considerably better.

Dr. Matthias Teschner, Director Engineering / Validation

The coupling of fill studies and FE analysis makes the predicted results more reliable. A detailed knowledge of the plastic material properties is important to design the products closer to the limits.

Christian Bresser, Senior Manager Process Mechanics Mechanical Simulation

With CONVERSE it is possible to use the anisotropic material behavior resulted from fiber orientation. Identifying of manufacturing process induced weak points becomes possible and a more realistic behavior of the part can be predicted.

Tamás Schmidt, Simulation Specialist

When we were looking for software that would help us to prepare our models for the simulation of glass fiber reinforced plastic parts, we saw that the Altair Partner Alliance offers CONVERSE, which is meeting our needs perfectly.

Nicolas Pluy, Mechanical Simulation Expert

Contact us

For further information and pricing please contact us. Please also feel free to call us at +49-2204-306 77-26. We also offer Converse featured FEA for plastic parts as service.