*MAT_4a_micromec – Micro Mechanic Based Material Model

Nowadays a great number of short and long fiber reinforced thermoplastics play a decisive role in the automotive industry to ensure affordable lightweight design and availability in large quantities. The properties of these materials are especially highly influenced through the manufacturing process (typically injection molding for SFRT and LFRT). Due to the short filling times high speeds and pressures are necessary in those processes, This leads to a a development of a significant fiber orientation by the extensional and shear flows in the mould. Integrative simulation is considering this manufacturing-induced distribution in the structural simulation by mapping the fiber orientation from the process simulation to the structural analysis.