Initial solution estimation to speed up inverse approach in stamping modeling

Y.Q. Guo; H. Naceur; K. Debray; F. Bogard

doi:10.1108/02644400310501992

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Engineering Computations

ISSN: 0264-4401

Online from: 1984

Subject Area: Mechanical & Materials Engineering

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Initial solution estimation to speed up inverse approach in stamping modeling

Document Information:
Title:	Initial solution estimation to speed up inverse approach in stamping modeling
Author(s):	Y.Q. Guo, (Laboratory of Mechanics, Materials and Structures (GMMS), U.F.R. Sciences E.N., University of Reims, Reims, France), H. Naceur, (Laboratory Roberval, University of Technology of Compiègne, Compiègne, France), K. Debray, (Laboratory of Mechanics, Materials and Structures (GMMS), U.F.R. Sciences E.N., University of Reims, Reims, France), F. Bogard, (Laboratory of Mechanics, Materials and Structures (GMMS), U.F.R. Sciences E.N., University of Reims, Reims, France)
Citation:	Y.Q. Guo, H. Naceur, K. Debray, F. Bogard, (2003) "Initial solution estimation to speed up inverse approach in stamping modeling", Engineering Computations, Vol. 20 Iss: 7, pp.810 - 834
Keywords:	Geometric planes and solids, Mathematical modelling, Non-linear control systems
Article type:	Research paper
DOI:	10.1108/02644400310501992 (Permanent URL)
Publisher:	MCB UP Ltd
Abstract:	Nowadays, simplified inverse or one step approaches for the sheet forming modeling are increasingly used in the automobile industry, since they allow to quickly realize the preliminary design and especially to optimize the process parameters. These methods often based on implicit static algorithms cause sometimes convergence problems because of strong non-linearities. This paper deals with several initial guess methods to speed up the convergence of the implicit static solver used in the inverse approach for stamping modeling. The blank's mesh as initial solution is obtained by geometrical considerations based on the known shape of the final 3D workpiece. Three algorithms for the estimation of the blank's mesh have been developed and compared. The application to several industrial problems shows their efficiency and performance.