Shape optimization of initial blank sheet for sheet metal forming

Design Requirements
  • Minimize difference in minimum and maximum thickness of formed sheet metal
  • Reach target sheet metal thickness
  • Secure excess flange length
Design Problem Formulation
  • Design variables  (4)
    Shape variables
  • Objective (2)
    Minimize difference between maximum thickness and target thickness
    Minimize difference between minimum thickness and target thickness
  • Constraints (1)
    Secure excess flange length
Simulation and Design Software
  • Simulation : Hypermesh, Abaqus
  • Design : PIAnO
Design Optimization Process
  1. Establish automation and analyze design problem
  2. Perform design optimization using an optimizer
Optimization Result
  • Difference between maximum and minimum sheet metal thickness reduced by 8% while satisfying all constraints