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Title: Sheet Metal Stamping Analysis and Process Design based on the Inverse Approach

Abstract

The simplified (one step) method also called 'inverse approach' (IA) for the numerical analysis of the stamping process has been continuously developed by the authors since the end of the eighties (1, 2, 3, 4). In the present paper we recall the main finite element formulation aspects of a robust IA analysis code, called FAST{sub S}TAMP, for an efficient estimation of the large elastoplastic strains (in particular the thickness strains) encountered in deep drawing operations. Our results will be presented and compared with others, obtained either from experiments or from incremental codes such as ABAQUS or STAMPACK. The presentation includes 'math based' optimization algorithms and strategies for process parameter design. The cost functions and constraints are mainly express to reduce or control the thickness changes, the localized necking, the wrinkling tendency, the springback effects after forming. The design variables are describing the shape of the blank and the tools, the restraining forces due to drawbeads, material properties such as anisotropy coefficient and hardening exponent. Results will be presented to show the actual capabilities of the coupled analysis and optimization strategy with application to the design of stamping parameters.

Authors:
;  [1];  [2]
  1. Universite de Technologie de Compiegne, BP 60319, 60203 Compiegne (France)
  2. Universite de Reims Champagne-Ardenne, BP 1039, 51687 Reims (France)
Publication Date:
OSTI Identifier:
21056997
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 907; Journal Issue: 1; Conference: 10. ESAFORM conference on material forming, Zaragoza (Spain), 18-20 Apr 2007; Other Information: DOI: 10.1063/1.2729719; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; A CODES; ALGORITHMS; ALLOYS; ANISOTROPY; CONTROL; DESIGN; DRAWING; FINITE ELEMENT METHOD; HARDENING; METALS; NUMERICAL ANALYSIS; OPTIMIZATION; S CODES; STRAINS; THICKNESS

Citation Formats

Batoz, Jean-Louis, Naceur, Hakim, and Guo Yingqiao. Sheet Metal Stamping Analysis and Process Design based on the Inverse Approach. United States: N. p., 2007. Web. doi:10.1063/1.2729719.
Batoz, Jean-Louis, Naceur, Hakim, & Guo Yingqiao. Sheet Metal Stamping Analysis and Process Design based on the Inverse Approach. United States. doi:10.1063/1.2729719.
Batoz, Jean-Louis, Naceur, Hakim, and Guo Yingqiao. Sat . "Sheet Metal Stamping Analysis and Process Design based on the Inverse Approach". United States. doi:10.1063/1.2729719.
@article{osti_21056997,
title = {Sheet Metal Stamping Analysis and Process Design based on the Inverse Approach},
author = {Batoz, Jean-Louis and Naceur, Hakim and Guo Yingqiao},
abstractNote = {The simplified (one step) method also called 'inverse approach' (IA) for the numerical analysis of the stamping process has been continuously developed by the authors since the end of the eighties (1, 2, 3, 4). In the present paper we recall the main finite element formulation aspects of a robust IA analysis code, called FAST{sub S}TAMP, for an efficient estimation of the large elastoplastic strains (in particular the thickness strains) encountered in deep drawing operations. Our results will be presented and compared with others, obtained either from experiments or from incremental codes such as ABAQUS or STAMPACK. The presentation includes 'math based' optimization algorithms and strategies for process parameter design. The cost functions and constraints are mainly express to reduce or control the thickness changes, the localized necking, the wrinkling tendency, the springback effects after forming. The design variables are describing the shape of the blank and the tools, the restraining forces due to drawbeads, material properties such as anisotropy coefficient and hardening exponent. Results will be presented to show the actual capabilities of the coupled analysis and optimization strategy with application to the design of stamping parameters.},
doi = {10.1063/1.2729719},
journal = {AIP Conference Proceedings},
number = 1,
volume = 907,
place = {United States},
year = {Sat Apr 07 00:00:00 EDT 2007},
month = {Sat Apr 07 00:00:00 EDT 2007}
}