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The effect of adhesive coating on the fatigue properties of 2014-T and 7075-T at normal and elevated temperatures

James, George T. (1955) The effect of adhesive coating on the fatigue properties of 2014-T and 7075-T at normal and elevated temperatures. Engineer's thesis, California Institute of Technology. http://resolver.caltech.edu/CaltechETD:etd-01062004-163541

Abstract

A problem of current practical interest to the field of Aeronautics is whether cement coatings associated with strain gages and fatigue warning indicators have appreciable effect upon fatigue characteristics.

Fatigue tests in rotary bending were conducted at room temperature, 200[degrees]F and 400[degrees]F on plain specimens of 2014-T and 7075-T and specimens coated with a synthetic resin lacquer, a synthetic resin cement, and an epoxy resin cement.

The effect of these coatings was slight at room temperature, falling within the scatter band, but apparently affording a small increase in fatigue life. At 200[degrees]F there was no definite effect, but at 400[degrees]F there was a pronounced lowering of fatigue life for all the coated specimens. Parallel results were obtained in 2014-T and 7075-T.

Item Type:Thesis (Engineer's thesis)
Degree Grantor:California Institute of Technology
Major Option:Aeronautics
Thesis Committee:
  • Sechler, E.E. (chair)
Defense Date:1 January 1955
Record Number:etd-01062004-163541
Persistent URL:http://resolver.caltech.edu/CaltechETD:etd-01062004-163541
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:40
Collection:CaltechTHESES
Deposited By: Imported from ETD-db
Deposited On:07 Jan 2004
Last Modified:25 Dec 2012 14:57

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