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Predicting polygonal-shaped defects during hot ring rolling using a rigid-viscoplastic finite element method
- Authors
- Moon, Ho Keun; Lee, Min Cheol; Joun, Man Soo
- Issue Date
- Feb-2008
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- ring rolling; finite element method; computer simulation; polygonal-shaped defect; ball bearing race
- Citation
- INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES, v.50, no.2, pp 306 - 314
- Pages
- 9
- Indexed
- SCIE
SCOPUS
- Journal Title
- INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
- Volume
- 50
- Number
- 2
- Start Page
- 306
- End Page
- 314
- ISSN
- 0020-7403
1879-2162
- Abstract
- We applied a rigid-viscoplastic finite element method to investigate polygonal-shaped defects that occur during ring rolling and developed an improved analysis model with relatively fine finite elements near the roll gap to reduce the computational time, along with a scheme to minimize the volume change. We also simulated the formation of a polygonal-shaped defect during hot ring rolling of a ball bearing outer race. The results were in good qualitative agreement with actual experimental phenomena. (C) 2007 Elsevier Ltd. All rights reserved.
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