208 Plastic collapse assessment procedure for branch pipes with volumetric flaw / 208 枝管に存在する減肉欠陥の塑性崩壊条件に関する研究(OS2-2 オーガナイズドセッション《材料強度と構造設計》)
- Resource Type
- Journal Article
- Authors
- Kenji OYAMADA; Kenta Ogasawara; Sinji Konosu; Tadasi Horibe; 堀辺 忠志; 小山田 賢治; 小笠原 健太; 鴻巣 眞二
- Source
- The Proceedings of Ibaraki District Conference. 2012, :47
- Subject
- General Yield
Piping Branch
Plastic Collapse
Volumetric Flaw
- Language
- Japanese
- ISSN
- 2424-2683
There are numerous cases where a volumetric flaw has found near a piping branch in-service. Because the stress concentration at a piping branch intersection under internal pressure and/or external moment is always larger than that of a straight pipe, it is strongly necessity to establish a quantitative and reasonable plastic collapse assessment procedure. In this paper, a new assessment procedure for a piping branch with a volumetric flaw was proposed. The plastic collapse load predicted by the proposed assessment procedure isverified by the result of the nonlinear FEA.