Crack growth testing of pipeline steels using SENT fracture specimens

Autor(es)

Cravero, Sebastian ; Ruggieri, Claudio ; ISOPE

• Tipo de documento: Artigo Científico
• Fonte: PROCEEDINGS OF THE SEVENTEENTH (2007) INTERNATIONAL OFFSHORE AND POLAR ENGINEERING CONFERENCE, VOL 1- 4, PROCEEDINGS; v. N/A, p. 2-pg., 2007-01-01.

Resumo

This work provides the development of compliance solutions and eta-factors for experimental measurements of resistance curves in structural and pipeline steels using SENT specimens. A summary of the methodology upon which J and crack extension are derived sets the necessary framework to determine crack resistance data from the measured load vs. displacement curves. The extensive plane-strain analyses enable numerical estimates of the nondimensional compliance, mu, and parameters eta for a wide range of specimen geometries and material properties characteristic of structural and pipeline steels. The results presented here produce a representative set of solutions which lend further support to develop standard test procedures for constraint-designed SENT specimens applicable in measurements of crack growth resistance for pipelines. (AU)

• Processo FAPESP: 04/07150-9 - Estudo de especimes de fratura se(t) e sua aplicacao na avaliacao de defeitos planares em dutos de tranporte de gas e petroleo.
• Beneficiário: Sebastian Cravero
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 03/02735-6 - Metodologia micromecânica e experimental para análise de defeitos e avaliação de integridade estrutural em dutos para transporte de gás e petróleo
• Beneficiário: Claudio Ruggieri
• Modalidade de apoio: Auxílio à Pesquisa - Temático