Plastic collapse stresses for pipes with circumferential twin flaws using combination rules

Kunio Hasegawa, Yinsheng Li, Yun Jae Kim, Valery Lacroix, Bohumir Strnadel

研究成果: Conference contribution

抄録

When discrete multiple flaws are in the same plane, and they are close to each other, it can be determined whether they are combined or standalone in accordance with combination rules provided by fitness-for-service (FFS) codes, such as ASME, JSME, BS7910, FKM, WES2805, etc. However, specific criteria of the rules are different amongst these FFS codes. On the other hand, plastic collapse bending stresses for stainless steel pipes with circumferential twin flaws were obtained by experiments and the prediction procedure for collapse stresses for pipes with twin flaws were developed analytically. Using the experimental data and the analytical procedure, plastic collapse stresses for pipes with twin flaws are compared with the stresses in compliance with the combination criteria. It is shown that the calculated plastic collapse stresses based on the combination criteria are significantly different from the experimental and analytical stresses.

本文言語English
ホスト出版物のタイトルCodes and Standards
出版社American Society of Mechanical Engineers (ASME)
ISBN(電子版)9780791851586
DOI
出版ステータスPublished - 2018
外部発表はい
イベントASME 2018 Pressure Vessels and Piping Conference, PVP 2018 - Prague, Czech Republic
継続期間: 2018 7月 152018 7月 20

出版物シリーズ

名前American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
1A-2018
ISSN(印刷版)0277-027X

Conference

ConferenceASME 2018 Pressure Vessels and Piping Conference, PVP 2018
国/地域Czech Republic
CityPrague
Period18/7/1518/7/20

ASJC Scopus subject areas

  • 機械工学

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