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Comparison Between Pressure Tests and Simulations for Thickness Management of Wall Thinning T-Joints

[+] Author Affiliations
Kaina Teshima, Mayumi Ochi

Mitsubishi Heavy Industries, Ltd., Takasago, Japan

Seiji Asada, Kiminobu Hojo

Mitsubishi Heavy Industries, Ltd., Kobe, Japan

Takahiro Suzuki

Tokyo Electric Power Co., Inc., Tokyo, Japan

Mitsuo Kugimoto

Chubu Electric Power Co., Inc., Nagoya, Japan

Paper No. PVP2012-78686, pp. 131-137; 7 pages
doi:10.1115/PVP2012-78686
From:
  • ASME 2012 Pressure Vessels and Piping Conference
  • Volume 3: Design and Analysis
  • Toronto, Ontario, Canada, July 15–19, 2012
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 978-0-7918-5502-7
  • Copyright © 2012 by ASME

abstract

Although the required minimum thickness (tsr) of T-joints (tees) is calculated from the design pressure and temperature for design, there are no rules or standards for thickness management of wall thinning T-joints for facilities maintenance.

This paper describes the comparison between the five pressure test results of T-joints and their numerical simulations using FE analysis and confirms the failure criterion. The investigation for the numerical simulation and the experimental tests showed that ultimate tensile stress (σu) is the most suitable criterion for the burst of T-joints.

Copyright © 2012 by ASME

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