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Company:

Schneider Electric Dupont

Products:

Digimat

Industries:

Electronics

Overview:
Government regulation and unexpected fluctuations in raw material price levels create new challenges for many companies. DIGIMAT offers the perfect combination of material modeling platform to optimize the performance of our reinforced thermoplastic components and DIGIMAT has demonstrated its ability to provide robust and accurate prediction of materials behavior.
Challenge:
  • Predict structural response of a glass fiber filled PBT polymer bracket
  • Accurately design and optimize electrical components existing geometry
Solution:
  • Reverse engineering of an elasto-plastic DIGIMAT material model
  • Computation of the nonlinear stiffness based on fiber orientation prediction performed with Moldflow
  • Comparison with experimental stiffness for two different composite materials developed by DuPont:
    • 20% glass fiber reinforced PBT polymer, (material 1) 
    • 50% glass fiber reinforced PBT polymer, (material 2)
  • Material damage behavior is not modeled
Results Validation:
"…From REACH legislation to unexpected fluctuations in raw material price levels, our products are more than ever challenged, in this context DIGIMAT offers the perfect combination of material modeling platform to optimize the performance of our reinforced thermoplastic components and DIGIMAT has demonstrated its ability to provide robust and accurate prediction of our materials behavior." M. Oubahmane Innovation & Technology Specialist Schneider Electric
Benefits:
  • Stiffness at break computed with standard elastoplastic materials leads to 85% error for part in material 1 and to 120% error for part in material 2.
  • Stiffness at break computed with elastoplastic DIGIMAT materials leads to 5% error for part in material 1 and to 2.5% error for part in material 2.
  • Process design can be trustfully optimized with DIGIMAT to improve part performances at better cost.

 
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