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

Volume 36, Issue 4 (July 2008)

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ISSN: 1945-7553
CODEN: JTEVAB
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, Rolla, MO

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

Mishra, R. S.
Center for Friction Stir Processing, Department of Materials Science and Engineering University of Missouri, Rolla, 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
ASTM International is a member of CrossRef.

Author Title Development of a Reversible Bending Fatigue Test Bed to Evaluate Bulk Properties Using Sub-Size Specimens Symposium , 0000-00-00 Committee E08

		SEDL / Journals / Journal of Testing and Evaluation (JTE) / Citation Page Volume 36, Issue 4 (July 2008) Click here to download this paper now for $25 PDF (160K) View License Agreement ISSN: 1945-7553 CODEN: JTEVAB 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, Rolla, MO Obermark, C. M. Center for Friction Stir Processing, Department of Materials Science and Engineering University of Missouri, Rolla, MO Mishra, R. S. Center for Friction Stir Processing, Department of Materials Science and Engineering University of Missouri, Rolla, 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 ASTM International is a member of CrossRef. Author Title Development of a Reversible Bending Fatigue Test Bed to Evaluate Bulk Properties Using Sub-Size Specimens Symposium , 0000-00-00 Committee E08