Initial imperfections and the initiation of wrinkling in finite element modelling of deep drawing

Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering - Tập 214 Số 1 - Trang 63-73 - 2000
J. Hematian1, Peter Wild1
1Queen's University Department of Mechanical Engineering Kingston, Ontario, Canada

Tóm tắt

The effect of initial imperfections on the initiation of wrinkling in finite element models of deep drawing operations is assessed. Models of an annular plate are subjected to radial in-plane loading and the effects of different types, magnitudes and distributions of imperfections are investigated. A model of a circular plate subjected to out-of-plane loading from a punch and die is similarly investigated and the results are compared with experimental data. It is confirmed that initial imperfections are an essential requirement for the initiation of wrinkling for the case of in-plane loading. Initial imperfections are shown to be unimportant in the initiation of wrinkling for the case of out-of-plane loading.

Từ khóa


Tài liệu tham khảo

Avitzur B. Handbook of Metal-Forming Processes, 1983, pp. 535–537 (John Wiley, New York).

MARC Users Manual, Vol. A, Rev. K.6, 1994, pp. 5–32 (MARC Analysis Research Corporation, Palo Alto, California).

Samanta S. K., 1992, Computational Methods in Materials Processing, 75

10.1016/0020-7403(88)90074-4

10.1016/S0020-7683(96)00008-X

Ni C. M., Computer Modeling and Simulation and Modeling of Manufacturing Processes, 20, 139

10.1115/1.2812270

Kirby D. S., Wild P. M. Deep drawing of pressure vessel end closures: Finite element simulation and validation. J. Mater. Processing Technol., 2000 (accepted).

10.1007/BF02320150

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Thông tin xuất bản

Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering

Tập 214 Số 1

63-73

Thông tin tác giả