Wrinkling Limit Based on FEM Virtual Experiment during NC Bending Process of Thin-Walled Tube-Reference-Cited by-同舟云学术

Wrinkling Limit Based on FEM Virtual Experiment during NC Bending Process of Thin-Walled Tube

Published:2004-12 Issue: Volume:471-472 Page:498-502
ISSN:1662-9752
Container-title:Materials Science Forum
language:
Short-container-title:MSF

Author:

Li Heng¹,Yang He¹,Zhan Mei¹,Guo L.G.¹,Gu R.J.

Affiliation:

1. Northwestern Polytechnical University

Abstract

A definition of forming limit is given with minimum centerline radius min R before wrinkling for NC bending process of thin-walled tube. Based on the developed FEM wrinkling prediction system TBWS-3D, an effective searching algorithm of wrinkling limit is proposed and forming limit can be obtained conveniently. Thus influence laws of main forming parameters on wrinkling limit are investigated and revealed. Measures to improve forming limit is put forward consequently. The achievements may help to both practice of thin-walled precise tube bending and research of plastic wrinkling.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

Link

https://www.scientific.net/MSF.471-472.498.pdf

Reference7 articles.

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3. Y. Lin: Numerical Simulation of Wrinkling Onset during the NC Bending Process of Thin-walled Tube (Ph.D. Dissertation, Northwestern Polytechnical University, China 2003) (in Chinese).

4. Y. Lin, H. Yang and H. Li: Acta Aeronautica Et Astronautica Sinica Vol. 24 (2003), p.456.

5. S. Kobayashi: Metal Forming and the Finite-Element Method (Oxford University Press, 1989).

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