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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

An engineering methodology for constraint corrections of elastic-plastic fracture toughness - Part II: Effects of specimen geometry and plastic strain on cleavage fracture predictions

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Author(s):
Ruggieri, Claudio [1] ; Savioli, Rafael G. [1] ; Dodds, Jr., Robert H. [2]
Total Authors: 3
Affiliation:
[1] Univ Sao Paulo, Dept Naval Architecture & Ocean Engn, Sao Paulo - Brazil
[2] Univ Illinois, Dept Civil & Environm Engn, Urbana, IL - USA
Total Affiliations: 2
Document type: Journal article
Source: ENGINEERING FRACTURE MECHANICS; v. 146, p. 185-209, SEP 2015.
Web of Science Citations: 19
Abstract

This work extends a micromechanics model for cleavage fracture incorporating effects of plastic strain to determine the reference temperature, T-0, for an A515 Gr 65 pressure vessel steel based on a modified Weibull stress ((sigma) over bar (w)). Non-linear finite element analyses for 3-D models of plane-sided SE(B) and PCVN specimens define the relationship between (sigma) over bar (w) and J from which the variation of fracture toughness across different crack configurations is predicted. The modified Weibull stress methodology yields estimates of T-0 from small fracture specimens which are in good agreement with the corresponding estimates derived from testing of larger crack configurations. (C) 2015 Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 12/13053-2 - Further developments in a micromechanics model for brittle fracture and applications to the master curve methodology
Grantee:Claudio Ruggieri
Support type: Regular Research Grants