MSC Software Corporation

Overview:
“Fiber reinforced plastic becomes major material for intake manifold because of lightweight and heat resisting properties. Detecting the correct high stress concentration area is important to predict fatigue properties of manifold. DIGIMAT helps us to predict correct stress distribution by taking into account the fiber orientation coming from injection molding. "

• To comply to the environmental needs of automotive industry and deliver greener technology by weight saving
• To support the process of design of under-­-the hood plastic parts reinforced with glass fibers

• Calibration of an elasto-plastic DIGIMAT material
• Simulation of the load case with Digimat-CAE/LS-DYNA interface based on fiber orientations coming from injection molding
• Comparison of maximum principle stresses of the composite material with an isotropic calculation

"Fiber reinforced plastic becomes major material for intake manifold because of lightweight and heat resisting properties. Detecting the correct high stress concentration area is important to predict fatigue properties of manifold. DIGIMAT helps us to predict correct stress distribution by taking into account the fiber orientation coming from injection molding. " Noriyo Ichinose, Sales engineer, JSOL Corporation, Japan

• For the high pressure peak (t1 = 8 ms) and the low pressure region (t1 = 12 ms) significant differences in the stress distribution are observed compared to the simulation using isotropic material
• The fiber reinforced part shows lower stresses than the isotropic case pointing out an over-designed part
• Potentially further weight can be saved on the part by introducing DIGIMAT in the design cycle