Numerical analysis on stress concentration factor for multi-planar tubular DT-joints under axial loading

被引：0
|
作者：
Yuan K.-L. [1 ]
Yang H.-T. [2 ]
Hong M. [1 ]
机构：
[1] State Key Lab of Structural Analysis for Industrial Equipment, School of Naval Architecture Engineering, Dalian University of Technology, Dalian
[2] Department of Engineering Mechanics, Dalian University of Technology, Dalian
来源：
Chuan Bo Li Xue/Journal of Ship Mechanics | 2019年 / 23卷 / 04期
关键词：
Axial loading; Multi-planar DT-joint; Parametric equations; Stress concentration factor (SCF);
D O I：
10.3969/j.issn.1007-7294.2019.04.012
中图分类号：
学科分类号：
摘要：
The stress concentration factor (SCF) plays an important role in fatigue life assessment of tubular joints in offshore structures. In this study, finite element (FE) method was employed to investigate the SCF distributions along the chord-brace intersection of multi-planar DT-joints under axial loading. In order to guarantee good quality and appropriate quantity of FE meshes, a method of sub-zone mesh generation was adopted. The effects of geometrical parameters on the SCF distributions were investigated. A set of parametric equations was proposed based on the results of the FE analysis. Two types of error analysis were used to verify the reliability of developed equations. © 2019, Editorial Board of Journal of Ship Mechanics. All right reserved.
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页码：476 / 487
页数：11
相关论文
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