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Company:

RHODIA

Products:

Digimat

Industries:

Consumer Products

Overview:
Being predictive in crash simulation is the dream of CAE engineers. The use of short fiber reinforced materials was putting this target out of range, because such materials have a variable anisotropy all over the part, associated to complex matrix behavior. No material model implemented in a code is able to capture this complexity level. Digimat to LS DYNA does. Associated with the Rhodia material database MMI confident Design™, Digimat CAE/LS DYNA is providing the best predictability level available on the market today.
Challenge:
  • To support their customers in the design of polyamide parts
  • To take into account the influence of fiber orientation for reinforced polyamide material
  • To provide the best material data possible to support simulation technologies
Solution:
  • Calibration of a strain rate dependent elasto-viscoplastic DIGIMAT material model sensitive to fiber orientation
  • Coupling to fiber orientation from Moldflow injection molding analysis by using the Digimat-CAE/LS-DYNA interface
Results Validation:
"Being predictive in crash simulation is the dream of CAE engineers. The use of short fiber reinforced materials was putting this target out of range, because such materials have a variable anisotropy all over the part, associated to complex matrix behavior. No material model implemented in a code is able to capture this complexity level. Digimat to LS-­-DYNA does. Associated with the Rhodia material database MMI confident Design™ , Digimat-­-CAE/LS-­-DYNA is providing the best predictivity level available on the market today. Rhodia is proud to offer this reliability to its customers." O. Moulinjeune, Simulation Expert at Rhodia Engineering Plastics
Benefits:
  • The Digimat-CAE/LS-DYNA analysis correlates very well with the experimental results
  • The peaks’ maximum force as well as their occurrence in time is matched well
  • It is crucial to take the fiber orientation into account when simulating fiber reinforced plastic parts

 
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