Weibull Statistics as a Basis for Assessment of Ductile-Brittle Transition Behavior

Abstract:

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The objective of this paper is to investigate failure characteristics of SA508 carbon steel in ductile-brittle transition temperature region. To achieve this goal, a series of finite element analyses as well as fracture toughness tests are performed for pre-cracked V-notch specimens. An assessment of failure probabilities is, then, carried out employing Weibull stress models with different rank probability options. Finally, a prototype of toughness scale diagram is derived through comparison of estimated fracture toughness data with those for compact tension specimens. The present results can be utilized to found a basis of realistic integrity evaluation on major nuclear components containing defect.

Info:

Periodical:

Key Engineering Materials (Volumes 326-328)

Edited by:

Soon-Bok Lee and Yun-Jae Kim

Pages:

931-934

DOI:

10.4028/www.scientific.net/KEM.326-328.931

Citation:

Y. S. Chang et al., "Weibull Statistics as a Basis for Assessment of Ductile-Brittle Transition Behavior", Key Engineering Materials, Vols. 326-328, pp. 931-934, 2006

Online since:

December 2006

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Price:

$35.00

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