题目：Deformation and Formability of Aluminium Sheet Alloys

报告人：Prof. P.D. Wu (吴沛东)
　　　　Department of Mechanical Engineering, McMaster University, Canada

时间：2018年5月17日（周四）14:00—16:00

地点：师昌绪楼403室

Abstract：

We start with listing limits to sheet metal forming. We then very briefly summarize the past and current research projects aiming for understanding these limits.  We proceed by demonstrating how crystal plasticity theory can be applied to study sheet metal formability. Finally, the effect of the cube texture on sheet metal formability is investigated as an example. It is found that, while the ideal cube texture decreases formability, a spread about cube significantly delays the initiation of localized necking when a sheet undergoes biaxial tension. The effect of the cube texture on the predicted Forming Limit Diagrams (FLDs) is discussed in terms of the sharpness of the yield locus near equi-biaxial tension.