ISSN: 0090-3973
Published Online: 9 May 2008
Page Count: 4

Development of a Reversible Bending Fatigue Test Bed to Evaluate Bulk Properties Using Sub-Size Specimens

De, P. S.
Center for Friction Stir Processing, Department of Materials Science and Engineering University of Missouri,MO,

Obermark, C. M.
Center for Friction Stir Processing, Department of Materials Science and Engineering University of Missouri,MO,

Mishra, R. S.
Center for Friction Stir Processing, Department of Materials Science and Engineering University of Missouri,MO,

(Received 16 January 2008; accepted 8 April 2008)

Abstract

A non-standard fully reversible bending fatigue test bed of fixed displacement amplitude type was designed. A sub-size sample similar in design to the standard ASTM B593 sample was used to evaluate the high cycle bend fatigue behavior of 7075-T6 sheet specimens. Fatigue life was determined at four stress levels of 300, 240, 220, and 190 MPa at a stress ratio of −1.

Keywords:
fatigue test method, sub-size specimen, high cycle fatigue, S-N curve

Paper ID: JTE101669
DOI: 10.1520/JTE101669
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