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Strain Capacity of X70 Pipeline Steel Subjected to Biaxial Loading Condition

[+] Author Affiliations
Marcelo Paredes, Tomasz Wierzbicki

Massachusetts Institute of Technology, Cambridge, MA

Paper No. OMAE2015-41534, pp. V05BT04A021; 11 pages
doi:10.1115/OMAE2015-41534
From:
  • ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering
  • Volume 5B: Pipeline and Riser Technology
  • St. John’s, Newfoundland, Canada, May 31–June 5, 2015
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 978-0-7918-5652-9
  • Copyright © 2015 by ASME

abstract

In this work the tensile capacity of circumferentially pressurized cracked pipes with varying crack parameters and pipe dimensions are numerically investigated. The biaxial loading mode includes internal pressure and tensile load, which are applied in sequence. The present physics-inspired fracture model based upon the original Mohr-Coulomb criterion enables not only the computation of global fracture response of pipe subjected to complex loading condition but also a thorough determination of the local evolving stress state around the growing cracks.

Copyright © 2015 by ASME

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