Digimat-CAE/Radioss is the interface that strongly couples Digimat-MF to RADIOSS via the USER DEFINED MATERIAL capability. Digimat-MF is provided as a software library that is linked to RADIOSS to offer a strong multi-scale coupling between the nonlinear micromechanical material modeling capabilities of Digimat-MF and the nonlinear explicit FEA capabilities of RADIOSS. In this configuration, Digimat-MF acts as an advanced anisotropic, nonlinear and rate-dependent user defined material at each relevant integration point of RADIOSS FE mesh.

• Accurate Failure Prediction

- Micro (matrix and/or fibers) & macro failure indicators
- Failure indicators can be strain rate dependent

• Accurate Micromechanical Material Modeling:

- Anisotropic: dependent on the microstructure morphology
- Nonlinear: elasto-plastic, with possibly continuous damage
- Strain rate dependent: viscoelastic, elasto-viscoplastic and viscoelastic-viscoplastic matrix.
- Temperature dependent: thermoelastic materials

• Accurate Nonlinear Multi-Scale Structure Modeling:

- Heterogeneous material: Anisotropic properties are a function of the local microstructure morphology

• Efficient & User Friendly Solution Procedure:

- Streamlined multi-scale modeling procedure
- Intuitive graphical user interface

• Lightweight, Cost Efficiency, Predictive and Robust Design, Risk Management are relevant keywords in automotive projects. The key advantage provided by DIGIMAT coupled to Radioss, LS Dyna and others CAE software is a drastic predictivity improvement for glass filled polyamide materials. With an improved predictivity, optimal and robust lightweight design is then possible. F. Braymand, Simulation Manager, L&L Products