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Simulation of Ductile Tearing in a Dissimilar Material Weld up to Pipe Wall Break-Through

[+] Author Affiliations
Philippe Gilles

AREVA, Colombes, France

Alexandre Brosse, Moïse Pignol

ESI-France, Lyon, France

Paper No. PVP2010-25706, pp. 509-517; 9 pages
doi:10.1115/PVP2010-25706
From:
  • ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference
  • ASME 2010 Pressure Vessels and Piping Conference: Volume 6, Parts A and B
  • Bellevue, Washington, USA, July 18–22, 2010
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 978-0-7918-49255 | eISBN: 978-0-7918-3878-5
  • Copyright © 2010 by ASME

abstract

This paper presents ductile initiation calculations and growth simulations of a surface crack up to pipe wall breakthrough. For validation purpose, one of the two BIMET configurations is selected. The EC program BIMET has been carried out to analyze the ductile tearing behavior of DMWs through experiments and computational analyses. In the mock-up, the initial defect is an external circumferential defect located close to the weld-ferritic interface, with a depth of one third of the wall thickness. During the test, the crack extended up to two third of the pipe wall thickness. The aim of the study is to simulate the crack initiation and growth, to compare the results with the experimental records and to continue the ductile crack growth up to pipe wall break-through.

Copyright © 2010 by ASME
Topics: Simulation , Pipes

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