Probabilistic Aspects Of Brittle Fracture In Pressure-Vessel Steels

Knott, J. F. (2004). Probabilistic Aspects Of Brittle Fracture In Pressure-Vessel Steels. In: Atrens, A., Boland, J. N., Clegg, R. and Griffiths, J. R., Structural Integrity and Fracture International Conference (SIF'04), Brisbane, Australia, (195-209). 26-29 September 2004.

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Author Knott, J. F.
Title of paper Probabilistic Aspects Of Brittle Fracture In Pressure-Vessel Steels
Conference name Structural Integrity and Fracture International Conference (SIF'04)
Conference location Brisbane, Australia
Conference dates 26-29 September 2004
Publication Year 2004
Sub-type Fully published paper
Editor Atrens, A.
Boland, J. N.
Clegg, R.
Griffiths, J. R.
Start page 195
End page 209
Abstract/Summary This paper addresses issues relating to the treatment of distributions of tensile strength, local cleavage fracture stress, and fracture toughness in pressure-vessel steels and weld deposits. Attention is drawn to the differences in behaviour between steels which have "quasi-homogeneous" microstructures and those which exhibit spatial heterogeneity. The differences are of greatest significance when statistical analysis is applied to distributions to derive "lower-bound" values. The findings from model systems are used to re-assess an earlier analysis of Weibull fracture stress and to comment on the use of a Master Curve methodology in the analysis of the "Euro" fracture toughness data-set.
Subjects 290801 Structural Engineering
Keyword fracture
tensile strength
toughness
cleavage
microstructure
master curve
Weibull
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Conference Paper
Collection: School of Mechanical & Mining Engineering Publications
 
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Created: Tue, 11 Jan 2005, 10:00:00 EST by Lucy Peachey on behalf of Research Management Office