Effect of Variation in Poisson’s Ratio on Plastic Tensile Instability

[+] Author and Article Information
C. W. Bert, E. J. Mills

Department of Mechanical Engineering, Battelle Memorial Institute, Columbus, Ohio

W. S. Hyler

Structural Materials, Engineering Division, Department of Mechanical Engineering, Battelle Memorial Institute, Columbus, Ohio

J. Basic Eng 89(1), 35-39 (Mar 01, 1967) (5 pages) doi:10.1115/1.3609567 History: Received August 11, 1966; Online November 03, 2011


Using the concept of the tensile-instability mechanism which determines the ultimate strength of most of the ductile materials under uniaxial or biaxial tension conditions, two new analyses are carried out. In these are considered an effect previously neglected: Variation of Poisson’s ratio (based on total strain) with strain in the plastic range. One analysis treats a uniaxial tensile specimen, and the predicted results are generally in better agreement with experimental values for seven alloys of aerospace structural importance than the results of classical theory, in which Poisson’s ratio is assumed to remain constant at a value of 1/2 in the plastic range. The other considers a thin-walled spherical shell subject to internal pressure, and the predicted result is again closer to the experimental value than that predicted by classical theory.

Copyright © 1967 by ASME
Your Session has timed out. Please sign back in to continue.






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