An Open Computational Tool for Analytical Design of Multi-Step Forging Processes

Abstract

In this work we have developed (1) a preliminary methodology for optimizing multi-step forging process and (2) the corresponding computational tool using or computing substrate PDESolve. The methodology is based on the solution of the direct and sensitivity problems coupled to an optimization algorithm and is applicable for general optimization-based design problems in mechanics. In particular, it can be used for the design of preform shape and die geometry in forging processes. Our computing substrate PDESolve is an open environment programming tool based on the object oriented languageC + + and has specific features that allow the user to program a problemat a high level. The methodology has been implemented using PDEsolve and will be applied to optimize the preform shape in a one-step open die forging operation (upsetting), the solution of this example as well as others in mechanics show that PDESolve can be used as an effective numerical tool for solving optimization-based design problems in engineering.

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Document Details

Document Type
Technical Report
Publication Date
Mar 31, 1997
Accession Number
ADA332556

Entities

People

  • Estaban Marin
  • Gal Berkooz

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Algorithms
  • Boundary Value Problems
  • Computer Programming
  • Constitutive Equations
  • Differential Equations
  • Elastic Properties
  • Engineering
  • Equations
  • Finite Element Analysis
  • Geometry
  • Materials
  • Mechanical Properties
  • Mechanics
  • Plastic Properties
  • Thick Walls
  • Two Dimensional

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