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Effect of the mean strength on the endurance limit or the crack growth threshold and the associated probability distributions

Record type: Article

Two new phenomenological expressions for generalized constant life curves are developed based on the traditional fatigue constant life curve. Parameter estimation formulas of generalized constant life curve are obtained from the standard procedure for regression analysis. From the generalized constant life curves proposed, two-dimensional joint probability distributions of generalized strength are derived. Finally, the methods developed are used to analyze three sets of experimental data pertaining to the two-dimensional up-and-down tests for LY11 A-alloy and fracture threshold tests for A-alloy and alloyed-steel in order to verify the practicability and validity of the new approaches. These matters have an important role in fatigue and fracture reliability analysis in ultra-long life regions and need to be resolved.

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Citation

Xiong, J.-J., Shenoi, R.A. and Zhang, Y. (2008) Effect of the mean strength on the endurance limit or the crack growth threshold and the associated probability distributions The Journal of Strain Analysis for Engineering Design, 43, (4), pp. 243-258. (doi:10.1243/03093247JSA336).

More information

Submitted date: 16 July 2007
Published date: May 2008
Keywords: generalized constant life curve, generalized strength, two-dimensional, up-and-down method, fracture threshold, probability distribution, interference model
Organisations: Engineering Mats & Surface Engineerg Gp, Fluid Structure Interactions Group

Identifiers

Local EPrints ID: 51301
URI: http://eprints.soton.ac.uk/id/eprint/51301
ISSN: 0309-3247
PURE UUID: 352d7464-8bdc-4cc9-a0f2-4cf0c2f7969b

Catalogue record

Date deposited: 27 May 2008
Last modified: 17 Jul 2017 14:48

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