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Contradictory Formulas of Local Probability of Fracture

[+] Author and Article Information
G. Diaz

Departamento de Ingenieriá de los Materiales, IDIEM, Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, Casilla 1420, Santiago, Chile

V. Martinez, P. Kittl

Departamento de Ingenieriá Mecánica, Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, Casilla 2777, Santiago, Chile

Appl. Mech. Rev 48(11S), S68-S75 (Nov 01, 1995) doi:10.1115/1.3005085 History: Online April 29, 2009

Abstract

The present work studies two deductions used to determine the local probability of fracture and whose final expressions coincide only in the case of a Weibull specific risk of fracture function of two parameters. As a result thereof, the inconsistency of one of the two deductions is shown and it is explained how to differentiate the two approaches experimentally. Three-point bending of a rectangular and a round beam is studied by resorting to the integral equations method in order to find the Weibull specific risk function.

Copyright © 1995 by The American Society of Mechanical Engineers
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