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On the Distribution of the Breaking Strain of a Bundle of Brittle Elastic Fibers

James U. Gleaton and James D. Lynch
Advances in Applied Probability
Vol. 36, No. 1 (Mar., 2004), pp. 98-115
Stable URL: http://www.jstor.org/stable/1428355
Page Count: 18
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On the Distribution of the Breaking Strain of a Bundle of Brittle Elastic Fibers
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Abstract

The maximum-entropy formalism developed by E. T. Jaynes is applied to the breaking strain of a bundle of fibers of various cross-sectional areas. When the bundle is subjected to a tensile load, and it is assumed that Hooke's law applies up to the breaking strain of the fibers, it is proved that the survival strain distribution for a fiber in the bundle is restricted to a certain class consisting of generalizations of the log-logistic distribution. Since Jaynes's formalism is a generalization of statistical thermodynamics, parallels are drawn between concepts in thermodynamics and in the theory of inhomogeneous bundles of fibers. In particular, heat transfer corresponds to damage to the bundle in the form of broken fibers, and the negative reciprocal of the parameter corresponding to thermodynamic temperature is the resistance of the bundle to damage.

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