1. Finite element simulation of plate or sheet metal forming processes using tetrahedral MINI-elements.
- Author
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Chung, Wanjin, Kim, Bongsu, Lee, Seongwon, Ryu, Hoyeun, and Joun, Mansoo
- Subjects
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FINITE element method , *COMPUTER simulation , *SHEET metal work , *PREDICTION models , *THICKNESS measurement , *VISCOPLASTICITY , *STRUCTURAL plates - Abstract
In this paper, finite element prediction of sheet metal forming process is investigated using solid elements. A three-dimensional rigidviscoplastic finite element method with linear tetrahedral MINI-elements is employed. This technique has traditionally been used for bulk metal forming simulations. The solid element approach with remeshing capability is applied to simulating a plate metal forming process to reveal its possible problems. The similar approach is also applied to a typical sheet forming process. Both single- and double-layer finite element mesh systems are studied, with particular attention to their effect on the deformed shape of the workpiece and thickness variation of a cold sheet forming process. The procedure is applied to the well-known problem of the NUMISHEET93 international benchmark. The resulting predictions are compared with experimental observations found in the literature, and good agreement is noted. [ABSTRACT FROM AUTHOR]
- Published
- 2014
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