Linkage from Mold Flow Simulation to Crash Simulation, Part Two: Mesh Segmentation to Reproduce Un-uniform Mechanical Properties of Cast-A356 Subframe
Year: 2026
Type: conference-paper
Abstract: The mechanical properties of constitutive model and fracture model play an important role in car-crash FEM analysis. Those mechanical properties in FEM are generally assumed unique for all the elements in a part, but such assumption obviously sounds not good in the case of ununiform properties of cast Al components. Such ununiformity yields the difficulty of re-use of existing material property data sheet or what is called material card in LSDYNA, which is the most popular FEM software in car crash analysis. The mesh of cast component is thus divided into segments based on the yield strength predicted by AI-reinforced mold flow simulation, and fracture property is considered as well for each segment. FEM crash results shows that the refined modeling method in this work can well reproduce the mechanical properties of cast Al component, and it can provide sounding methodology for the initial phase of forward engineering of vehicle.
Language: English
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W7204158971