Busca avançada
Ano de início
Entree
(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

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

Texto completo
Autor(es):
Barbosa, Vitor S. [1] ; Ruggieri, Claudio [1]
Número total de Autores: 2
Afiliação do(s) autor(es):
[1] Univ Sao Paulo, Dept Naval Architecture & Ocean Engn, Sao Paulo - Brazil
Número total de Afiliações: 1
Tipo de documento: Artigo Científico
Fonte: ENGINEERING FRACTURE MECHANICS; v. 195, p. 297-312, MAY 15 2018.
Citações Web of Science: 1
Resumo

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)

Processo FAPESP: 16/26024-1 - Modelagem multiescala da fratura frágil aplicada à avaliação da integridade estrutural utilizando corpos de prova miniaturizados
Beneficiário:Claudio Ruggieri
Linha de fomento: Auxílio à Pesquisa - Regular