[Oral Presentation]Simulation Research on Necking and Fracture of Electromagnetic Expanding Ring Based on Gurson Model

Simulation Research on Necking and Fracture of Electromagnetic Expanding Ring Based on Gurson Model

ID：239 Submission ID：86 View Protection：ATTENDEE Updated Time：2020-10-15 20:28:15 Hits：297 Oral Presentation

Start Time：2020-11-04 09:45 （Asia/Shanghai）

Duration：15min

Session：[F] High Magnetic Field Engineering and Fusion Technology » [F2] Session 25 and Session 30

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Abstract

The electromagnetic expansion ring test can be used to study the fracture characteristics of materials. In this paper, Gurson JC model is used to describe the damage model of Aluminum alloy. The fully coupled method is used to study the necking and fracture behavior of the material in electromagnetic expansion ring process. The relationship between the expansion speed and necking, fracture behavior of the workpiece ring is discussed. The size effect of the workpiece ring is further discussed based on the simulation. The results suggest that the expansion speed plays the decisive role on the number of necking and fracture, and there are obvious differences between workpiece rings of different sizes.

Keywords

Electromagnetic expanding ring; Electromagnetic forming; Fracture; Gurson model; Necking

Speaker

Yong Wan

Huazhong University of Science and Technology

Submission Author

Yong Wan Huazhong University of Science and Technology

Xiaotao Han Huazhong University of Science and Technology

Zelin Wu Huazhong University of Science and Technology

Jiawei Wu Huazhong University of Science and Technology