Experiences with Lifetime Prediction Under Multiaxial Random Loading / K. Pötter, F. Yousefi, H. Zenner

Conference Author:: Multiaxial Fatigue and Deformation: Testing and Prediction (1999 : Seattle, Washington)
Published:: West Conshohocken, Pa. : ASTM International, 2000.
Physical Description:: 1 online resource (16 pages) : illustrations, figures, tables
Additional Creators:: Zenner, H., Pötter, K., Yousefi, F., American Society for Testing and Materials, and ASTM International

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Summary:

A number of multiaxial fatigue criteria have been developed during the past decades. They can be subdivided into hypotheses of the critical plane approach, hypothesis of integral approach, as well as empirical criteria. In the case of the integral approach the equivalent stress is calculated as an integral of the stresses over all intersection planes, whereas in the case of the critical plane approach only the intersection plane with the critical stress combination is considered. The difference between the two approaches is insignificant with proportional in-phase loading, but becomes clearly visible in the case of noncorrelated or phase-shifted loading. In the present paper the two approaches are compared. For the model verification, variable-amplitude tests under combined bending and torsion with smooth and notched specimens are applied. The integral approach was found to be superior to the critical plane approach under varying principal stress directions.

Dates of Publication and/or Sequential Designation:

Volume 2000, Issue 1387 (January 2000)

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ISBN:

9780803154353 (e-ISBN)
9780803128651
0803128657

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text file PDF

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Includes bibliographical references 22.

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Also available online via the World Wide Web. Tables of contents and abstracts freely available; full-text articles available by subscription.
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Electronic reproduction. W. Conshohocken, Pa. : ASTM International, 2000. Mode of access: World Wide Web. System requirements: Web browser. Access may be restricted to users at subscribing institutions.

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