0
RESEARCH PAPERS

A Fracture Criterion for Cold Forming

[+] Author and Article Information
H. A. Kuhn, P. W. Lee, T. Erturk

Department of Metallurgical Engineering, Drexel University, Philadelphia, Pa.

J. Eng. Mater. Technol 95(4), 213-218 (Oct 01, 1973) (6 pages) doi:10.1115/1.3443155 History: Received December 14, 1972; Online August 17, 2010

Abstract

Fracture under combined stresses has been studied with the objective of evaluating existing fracture criteria and providing data for the formulation of new criteria. Upsetting, bending, rolling, and plane strain tests were used for the fracture study. By utilizing various combinations of test specimen height-to-diameter ratio and die contact surface friction conditions, a wide range of stress and strain ratios can be developed in the test specimens. The procedure involves measurement of the tensile and compressive strains at the fracture site. Two grades of carbon steel and one grade of stainless steel were tested in upsetting, bending, rolling, and plane strain deformation. The results are expressed as a forming limit in a total compressive strain versus total tensile strain diagram. The data are also consistent with the Cockcroft fracture criterion.

Copyright © 1973 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In