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Generalized Orowan-Petch plot for brittle fracture

Zimmermann, André and Rödel, Jürgen (1998):
Generalized Orowan-Petch plot for brittle fracture.
In: Journal of the American Ceramic Society, pp. 2527-2532, 81, (10), ISSN 0002-7820,
[Article]

Abstract

The fracture of brittle solids is considered to be based on a defect configuration consisting of a stress concentrator, in our case a hemispherical pore, and a starter crack, in our case either a semicircular crack, a circular crack, or a circumferential crack. Computation of the stress field, application of the relevant weight functions, and an averaging scheme based on the assumption of a virtual crack increment provides stress intensity factors for all defect configurations considered, A normalization scheme yields a generalized version of the Orowan-Petch plot in the form of a normalized strength to normalized defect size relationship.

Item Type: Article
Erschienen: 1998
Creators: Zimmermann, André and Rödel, Jürgen
Title: Generalized Orowan-Petch plot for brittle fracture
Language: English
Abstract:

The fracture of brittle solids is considered to be based on a defect configuration consisting of a stress concentrator, in our case a hemispherical pore, and a starter crack, in our case either a semicircular crack, a circular crack, or a circumferential crack. Computation of the stress field, application of the relevant weight functions, and an averaging scheme based on the assumption of a virtual crack increment provides stress intensity factors for all defect configurations considered, A normalization scheme yields a generalized version of the Orowan-Petch plot in the form of a normalized strength to normalized defect size relationship.

Journal or Publication Title: Journal of the American Ceramic Society
Volume: 81
Number: 10
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Nonmetallic-Inorganic Materials
11 Department of Materials and Earth Sciences > Fachbereich Materialwissenschaft (1999 aufgegangen in 11 Fachbereich Material- und Geowissenschaften)
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 19 Nov 2008 16:01
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