Computer simulation and experimental verification of a metal forming process

K. Chandy, N. Chandra

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A description is given of a physical model designed to simulate pressure-forming operations, and the results from computational models and actual samples are used to validate the use of this physical model. Results from both the computational and physical models, coupled with experimental evidence from actual specimens, indicate that the free deforming profiles of a thin superplastic sheet is spherical. A state of biaxial stress exists at the pole in both physical and actual specimens. The clamping pressure due to the clamps creates a plane strain state in the rubber model. However, the clamps are unable to prevent displacement of the material laterally in actual specimens; this may be due to the bending and shearing action caused when the sheet is bent over the die radius. The drawing action is also responsible for a thickening of the sheet near the die edges. The present physical setup is unable to account for such bending and shearing stresses.

Original languageEnglish (US)
Title of host publicationProceedings of the Annual Southeastern Symposium on System Theory
PublisherPubl by IEEE
Pages24-28
Number of pages5
ISBN (Print)0818620382
StatePublished - Dec 1 1990
Externally publishedYes
EventProceedings of the 22nd Southeastern Symposium on System Theory - Cookeville, TN, USA
Duration: Mar 11 1990Mar 13 1990

Publication series

NameProceedings of the Annual Southeastern Symposium on System Theory

Other

OtherProceedings of the 22nd Southeastern Symposium on System Theory
CityCookeville, TN, USA
Period3/11/903/13/90

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Mathematics(all)

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