Prediction of Cleavage Fracture Probability for Ferritic Steels in the Transition Region

V Bicego; A Elli; C Rinaldi

doi:10.1520/STP14609S

SYMPOSIA PAPER Published: 01 January 1995

STP14609S

Prediction of Cleavage Fracture Probability for Ferritic Steels in the Transition Region

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A method is described for modelling the stochastic variability of toughness data for ferritic steels in the brittle to ductile transition regime. The present model is based on two ingredients: a weakest link approach using Weibull statistics with a suitable modification to include the effect of ductile tearing, and an accurate expression of the material J-R curve, determined from fractography. The model provides a rationale for the different fracture behaviour of a material over the whole range of temperature, from fully stable J-R behaviour at high temperature down to brittle fracture under LEFM conditions at low temperature.

Author Information

Bicego, V

CISE SpA, Milan

Elli, A

CISE SpA, Milan

Rinaldi, C

CISE SpA, Milan

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Developed by Committee: E08

Pages: 448–463

DOI: 10.1520/STP14609S

ISBN-EB: 978-0-8031-5294-6

ISBN-13: 978-0-8031-1882-9

Prediction of Cleavage Fracture Probability for Ferritic Steels in the Transition Region

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