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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 I: A review on probabilistic models and exploration of plastic strain effects

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Ruggieri, Claudio [1] ; Dodds, Jr., Robert H. [2]
Total Authors: 2
[1] Univ Sao Paulo, Dept Naval Architecture & Ocean Engn, Sao Paulo - Brazil
[2] Univ Illinois, Dept Civil & Environm Engn, Champaign, IL - USA
Total Affiliations: 2
Document type: Journal article
Source: ENGINEERING FRACTURE MECHANICS; v. 134, p. 368-390, JAN 2015.
Web of Science Citations: 27

This work describes a micromechanics methodology based upon a local criterion incorporating the effects of plastic strain on cleavage fracture coupled with statistics of microcracks. A parameter analysis is conducted under well-contained plasticity, where near-tip fields with varying constraint levels are generated through a modified boundary layer formulation. These analyses are extended to assess the effects of plastic strain on fracture toughness correlations for conventional SE(B) specimens with varying a/W-ratios. Fracture toughness predictions for a pressure vessel steel tested in the DBT transition region based on the proposed methodology are considered in Part II of this article. (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