SPRINGBACK SIMULATION FOR AUTOMOTIVE BODY COMPONENTS USING HIGH STRENGTH STEELS

The objective of this study is to develop a more precise springback prediction technique by means of finite elements method for the optimization of forming process design. The approach includes a new material modelling method to calculate accurate residual stresses inherent in forming processes, and a new analytical method to calculate springback shape by releasing residual stresses in a sequence of releasing steps. This paper proposed the new analytical method in springback simulation for actual automotive components with complex shapes. A new algorism, Multi-Step-Springback method was developed to improve the accuracy of spring back simulation. In order to determine the material parameter, impact on springback results is shown. The effect of modelling a more complex material behaviour is presented. The simulation using proposed material model shows good accuracy of springback prediction for hat-shape drawing, a typical cross-section for structural members. (A) For the covering abstract see ITRD E121867.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/491251933X
• Corporate Authors:

  Society of Automotive Engineers of Japan

  10-2 Goban-cho, Chiyoda-ku
  Tokyo,   Japan 
• Authors:
  • Sato, K
  • YOSHITAKE, A
  • Gerlach, J
  • BLUEMEL, K
• Publication Date: 2003

Language

• English

Media Info

• Features: References;
• Pagination: p. 41-6
• Serial:
  • PROCEEDINGS OF IBEC 2003 (INTERNATIONAL BODY ENGINEERING CONFERENCE), HELD OCTOBER 2003, CHIBA, JAPAN
  • Publisher: Society of Automotive Engineers of Japan

Subject/Index Terms

• TRT Terms: Conferences; Finite element method; High strength; Motor vehicle bodies; Simulation; Steel
• ITRD Terms: 1356: Body (car); 8525: Conference; 6490: Finite element method; 5537: High strength; 9103: Simulation; 4542: Steel
• Subject Areas: Data and Information Technology;

Filing Info

• Accession Number: 00979707
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 4-912519-33-X
• Files: ITRD
• Created Date: Oct 6 2004 12:00AM