Research Article
Jul 1981
Fatigue Notch Factors for Structural Details
Publication: Journal of the Structural Division
Volume 107, Issue 7
Abstract
The use of fatigue notch factors is proposed for specifying the relationship between the allowable stress range and the number of loading cycles. This is done by premultiplying the stress range with a fatigue notch factor which accounts for the severity of the detail's stress concentration. The method simplifies the manner in which fatigue specifications are written, and it conveys the idea of classification of details by severity of stress concentrations; it is most suitable for use in computer-aided analysis and design. The proposed equations for redundant load path structures give stress range values closer to those corresponding to the lower confidence limit at two standard deviations of the mean than the rounded off values in the specifications. The proposed equations for nonredundant load path structures are set at a uniform 5.5 standard deviations below the mean.
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Information
Published In
Journal of the Structural Division
Volume 107 • Issue 7 • July 1981
Pages: 1279 - 1296
Copyright
© 1981 American Society of Civil Engineers.
History
Published in print: Jul 1981
Published online: Feb 1, 2021
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Authors
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Pedro Albrecht, M.ASCE
Assoc. Prof., Dept. of Civ. Engrg., Univ. of Maryland, College Park, Md. 20742
Simon Simon, AM.ASCE
Struct. Engr., Sverdrup and Parcel and Assoc., Silver Spring, Md
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.