Mismatch limit loads of circumferential cracked pipes with V-groove welds

Sang Hyun Kim, Jae Jun Han, Yun Jae Kim

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

The present work reports mis-match limit loads for V-groove welded pipe for a circumferential crack using finite element (FE) analyses. In our previous paper [14], closed-form solutions of mis-match limit loads were proposed for idealized butt weld configuration as a function of the strength mis-match ratio with only one geometry-related slenderness parameter. To integrate the effect of groove angles on mismatch limit loads, the geometry-related slenderness parameter has to be modified by relevant geometric parameters including groove angle, crack depth and root opening based on plastic deformation patterns in theory of plasticity. Circumferential through-wall cracks are located at the centre of the weld considering two different groove angles (45°, 90°). With regards to loading conditions, axial (longitudinal) tension is applied for all cases. For the parent and weld metal, elastic-perfectly plastic materials are used to simulate under-matching and over-matching conditions in plasticity. The overall results from the proposed solutions agree well with FE results.

本文言語English
ホスト出版物のタイトルASME 2013 Pressure Vessels and Piping Conference, PVP 2013
DOI
出版ステータスPublished - 2013 12 1
外部発表はい
イベントASME 2013 Pressure Vessels and Piping Conference, PVP 2013 - Paris, France
継続期間: 2013 7 142013 7 18

出版物シリーズ

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

Conference

ConferenceASME 2013 Pressure Vessels and Piping Conference, PVP 2013
CountryFrance
CityParis
Period13/7/1413/7/18

ASJC Scopus subject areas

  • Mechanical Engineering

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