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ASM Handbook

Mechanical Testing and Evaluation

Edited by
Howard Kuhn
Howard Kuhn
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Dana Medlin
Dana Medlin
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ASM International
Volume
8
ISBN electronic:
978-1-62708-176-4
Publication date:
2000
Book Chapter

Fatigue, Creep Fatigue, and Thermomechanical Fatigue Life Testing

By
Gary R. Halford
Gary R. Halford
Glenn Research Center at Lewis Field, National Aeronautics and Space Administration
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Bradley A. Lerch
Bradley A. Lerch
Glenn Research Center at Lewis Field, National Aeronautics and Space Administration
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Michael A. McGaw
Michael A. McGaw
McGaw Technology, Inc.
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Published:
2000
Page range:
686 - 716

Abstract

This article describes the phenomena of crack initiation and early growth. It examines specimen design and preparation as well as the apparatus used in crack initiation testing. The article provides descriptions of the various commercially available fatigue testing machines: axial fatigue testing machines and bending fatigue machines. Load cells, grips and alignment devices, extensometry and strain measuring devices, environmental chambers, graphic recorders, furnaces, and heating systems of ancillary equipment are discussed. The article presents technologies available to accomplish closed loop control of materials testing systems in performing standard materials tests and for the development of custom testing applications. It explores the advanced software tools for materials testing. The article includes a description of baseline isothermal fatigue testing, creep-fatigue interaction, and thermomechanical fatigue. The effects of various variables on fatigue resistance and guidelines for fatigue testing are also presented.

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Gary R. Halford, Bradley A. Lerch, Michael A. McGaw, 2000. "Fatigue, Creep Fatigue, and Thermomechanical Fatigue Life Testing", Mechanical Testing and Evaluation, Howard Kuhn, Dana Medlin

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