Blank Design and Strain Estimates for Sheet Metal Forming Processes by a Finite Element Inverse Approach with Initial Guess of Linear Deformation

A new finite element approach is introduced for direct prediction of blank shapes and strain distributions from desired final shapes in sheet metal forming. The approach deals with the geometric compatibility of finite elements, plastic deformation theory, minimization of plastic work with constraints and a proper initial guess. The algorithm developed is applied to cylindrical cup drawing, square cup drawing and oil pan drawing in order to confirm its validity by demonstrating reasonably accurate numerical results for each problem. Rapid calculation with this algorithm enables easy determination of various process variables for design of a sheet metal forming process.
Publisher
Elsevier
Issue Date
1998-10
Keywords

Blank design; Finite element inverse approach; Linear deformation

Citation

Volume 82, Issues 1-3, 1 October 1998, Pages 145-155

ISSN
0924-0136
DOI
10.1016/S0924-0136(98)00034-X
URI
http://hdl.handle.net/10203/3294
Appears in Collection
ME-Journal Papers(저널논문)
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