Numerical Modeling of the Structural Behavior of Thin-Walled Cast Magnesium Components Using a Through-Process Approach 2005-01-0724
A through-process methodology for numerical simulations of the structural behavior of thin-walled cast magnesium components is presented. The methodology consists of casting process simulations using MAGMAsoft, mapping of data from the process simulation onto a FE-mesh (shell elements) and numerical simulations using the explicit FE-code LS-DYNA. In this work, generic High Pressure Die Cast (HPDC) AM60 components have been studied using 3-point bending and 4-point bending tests. The experimental data are applied to obtain a validated methodology for finite element modeling of thin-walled cast components subjected to quasi-static loading. The cast magnesium alloy is modeled using a user-defined material model consisting of an elastic-plastic model based on a non-associated J2-flow theory and the Cockcroft-Latham fracture criterion. The fracture criterion is coupled with an element erosion algorithm available in LS-DYNA. The constitutive model and fracture criterion are calibrated both with data from material tests and data from the process simulation using MAGMAsoft.
Citation: Dørum, C., Hopperstad, O., Langseth, M., Lademo, O. et al., "Numerical Modeling of the Structural Behavior of Thin-Walled Cast Magnesium Components Using a Through-Process Approach," SAE Technical Paper 2005-01-0724, 2005, https://doi.org/10.4271/2005-01-0724. Download Citation
C. Dørum, O. S. Hopperstad, M. Langseth, O.-G. Lademo, S. Sannes
Structural Impact Laboratory (SIMLab), Department of Structural Engineering Norwegian University of Science and Technology, SINTEF Materials and Chemistry, Hydro Magnesium
SAE 2005 World Congress & Exhibition
Magnesium Technologies-SP-1947, Lightweight MagnesiumTechnology 2001- 2005-PT-131, SAE 2005 Transactions Journal of Materials and Manufacturing-V114-5