Fracture statistics of torsion and dispersion relations in round bars

This paper has adopted a theoretical viewpoint for studying Fracture Statistics in round bars subjected to torsion, and for determining the cumulative probabilities of fracture using Weibull's specific-risk function for materials that exhibit volume and surface brittleness. The use of the defin...

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Bibliographic Details
Main Author: G. Díaz
Format: Article
Language:English
Published: Consejo Superior de Investigaciones Científicas 1990-09-01
Series:Materiales de Construccion
Online Access:http://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/770
Description
Summary:This paper has adopted a theoretical viewpoint for studying Fracture Statistics in round bars subjected to torsion, and for determining the cumulative probabilities of fracture using Weibull's specific-risk function for materials that exhibit volume and surface brittleness. The use of the defined-functions method has allowed to get the specific-risk-of-fracture function and, in addition, to carry out a separation between volume part and surface part concerning materials presenting both brittlenesses at the same time. Dispersion of the parameters are determined resorting to Fisher's information matrix.
ISSN:0465-2746
1988-3226