Main Research Interest / Name of Research Project
Physically based flow stress modelling for advanced materials manufacturing.Dynamic fracture test and modelling for advanced materials manufacturing.Simulation based optimization in advanced materials manufacturing.Design under uncertainty in advanced materials manufacturing.
When bending is added to a plane stress forming (i.e. stretching), formability is found to exceed the limits indicated by the FLC for most steel grades. Thus the actual formability is underestimated. The project aim is to develop a failure model to reliably predict formability under stretch-bending, which will enhance the application of AHSS in industry.
Thesis name: STUDY ON FAILURE CRITERION OF ALUMINUM ALLOY FOR MANUFACTURING PROCESS. (In Chinese)
Summary: Failure of material is a common phenomenon in the manufacturing processes. It is crucial to establish a failure criterion in the simulation to identify any possible instability or fracture failure before conducting costly try-out experiments. Developing reasonable and practical failure test and prediction methods has always been a challenging task for the scientific and engineering community.In my thesis, the warm forming and the cutting process were selected as the background for modelling material failure criterion. Based on the comparison and evaluation of the corresponding research, the fundamental theory for modelling material failure criterion was studied. An approach for predicting the forming limit in warm forming of aluminium alloy sheet was proposed and applied in the simulation. Besides, the failure criteria under cutting conditions was developed and applied in the cutting simulation of aviation aluminium alloy.