Further results in J and CTOD estimation procedures for SE(T) fracture specimens - Part I: Homogeneous materials

Autor(es)

Ruggieri, Claudio ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Dept Naval Architecture & Ocean Engn, BR-05508900 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: ENGINEERING FRACTURE MECHANICS; v. 79, p. 245-265, JAN 2012.
• Citações Web of Science: 45

Resumo

This study provides further developments of the evaluation procedure for J and CTOD in SE(T) fracture specimens based on plastic eta-factors and load separation analysis. Non-linear finite element analyses for plane-strain and 3-D models provide the relationship between plastic work and crack driving forces which define the eta-values. Further analyses based on the load separation method define alternative eta-values for the analyzed specimen configurations. Overall, the present results provide improved estimation equations for J and CTOD as a function of loading condition (pin load vs. clamp ends), crack geometry and strain hardening properties. (C) 2011 Elsevier Ltd. All rights reserved. (AU)

• Processo FAPESP: 09/54229-3 - Integridade estrutural em juntas soldadas circunferenciais de dutos e risers
• Beneficiário: Claudio Ruggieri
• Modalidade de apoio: Auxílio à Pesquisa - Regular