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TECHNICAL PAPERS

Fatigue Life Prediction in Titanium Matrix Composites

[+] Author and Article Information
T. Nicholas

Materials Directorate, USAF Wright Laboratory, Wright-Patterson AFB, OH 45433

J. Eng. Mater. Technol 117(4), 440-447 (Oct 01, 1995) (8 pages) doi:10.1115/1.2804737 History: Received June 18, 1995; Online November 27, 2007

Abstract

Methods used for life prediction of titanium matrix composites under isothermal and thermomechanical (TMF) fatigue are reviewed. Models containing a single parameter are shown to have applicability only under limited conditions. Two models, a dominant damage and a life fraction model, demonstrate predictive capabilities over a broad range of loads, frequencies, temperatures, and TMF parameters. Relationships between the underlying fatigue mechanisms and the individual terms in the models are illustrated.

Copyright © 1995 by The American Society of Mechanical Engineers
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