Geometrical Effects in Strain Cycled Aluminum

[+] Author and Article Information
M. H. Raymond, L. F. Coffin

General Electric Research Laboratory, Schenectady, N. Y.

J. Basic Eng 85(4), 548-554 (Dec 01, 1963) (7 pages) doi:10.1115/1.3656909 History: Received August 27, 1962; Online November 03, 2011


Dimensional changes in the form of necking and bulging occur in the shape of cylindrical and hourglass commercially pure aluminum specimens subjected to axial push-pull cyclic loading. The present report deals with the effect of these changes on the resistance to deformation and fracture by fatigue. It is found that the change in shape due to instability affects the stress range response of the material during cycling. The control of shape permits a steady-state response with cycling regardless of the prior state of strain in the material. With an appropriate correction for the shape constraint effect, the steady-state stress range achieved is the same with or without shape control. Frequent removal of the surface material to control the specimen profile during cycling leads to a stabilized hysteresis loop and an indeterminate extension in the fatigue life.

Copyright © 1963 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