|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Fracture: 65 Years after the Weibull Distribution and the Williams Singularity
||On the Prediction of Failure in 6016 Aluminum Alloy Sheet by GISSMO Damage Model
||Bin Liang, Yan Zhao, Dengfu Chen, Xinming Wan, Junping Zhang, Jia Zhou, Mujun Long, Huamei Duan
|On-Site Speaker (Planned)
The accurate prediction of fracture behavior is a challenge in metal forming analysis. Experimental evidence shows that ductile fracture strongly depends on stress state and strain path. As a stress state dependent damage model, the GISSMO includes incremental formulation for the description of material instability and localization. It could be used to predict the failure of metal material under different load conditions. In this study, six different shaped specimens which reflects different stress state of 6016 aluminum alloy sheet were performed tests. All the experiment processes were reproduced within finite element simulation to calibrate the GISSMO parameters. The model validation indicates that the crack morphology and generation time of failure prediction are match well with actual experimental results. Moreover, compared with the traditional forming limit diagram, the GISSMO damage model is more suitable to accurately simulate and predict the fracture behavior of 6016 aluminum alloy sheet for several load paths.
||Planned: Supplemental Proceedings volume