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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.)

Fracture toughness testing using non-standard bend specimens - Part II: Experiments and evaluation of T-0 reference temperature for a low alloy structural steel

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Author(s):
Barbosa, Vitor S. [1] ; Ruggieri, Claudio [1]
Total Authors: 2
Affiliation:
[1] Univ Sao Paulo, Dept Naval Architecture & Ocean Engn, Sao Paulo - Brazil
Total Affiliations: 1
Document type: Journal article
Source: ENGINEERING FRACTURE MECHANICS; v. 195, p. 297-312, MAY 15 2018.
Web of Science Citations: 1
Abstract

The present study addresses an experimental investigation of the effects of geometry and loading mode on the cleavage fracture behavior of a high strength, low alloy structural steel using standard and non-standard SE(B) specimens, including a non-standard PCVN configuration. Fracture toughness testing conducted on various bend specimen geometries extracted from an A572 Grade 50 steel plate provides the cleavage fracture resistance data in terms of the J-integral at cleavage instability, J(c). The experimental results show a potential effect of specimen geometry and loading mode on J(c)-values which can help mitigating the effects of constraint loss often observed in smaller fracture specimens. An exploratory application to determine the reference temperature, T-0, derived from the Master Curve methodology (which defines the dependence of fracture toughness with temperature for the tested material) also provides additional support for using non-standard bend specimens in routine fracture applications. (AU)

FAPESP's process: 16/26024-1 - Multiscale Modeling of Cleavage Fracture and Applications to Structural Integrity Assessments Using Subsize Fracture Specimens
Grantee:Claudio Ruggieri
Support Opportunities: Regular Research Grants