Failure investigation on deformed superheater tubes

被引：42
|
作者：
Othman, H. [2 ]
Purbolaksono, J. [1 ]
Ahmad, B. [2 ]
机构：
[1] Univ Tenaga Nas, Kajang 43009, Malaysia
[2] TNB Res, Kajang 43000, Malaysia
来源：
ENGINEERING FAILURE ANALYSIS | 2009年 / 16卷 / 01期
关键词：
Failure analysis; Finite element method; Superheater tube; Deformation;
D O I：
10.1016/j.engfailanal.2008.05.023
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Investigation is conducted following the discovery of significant deformations and the presence of cracks in the vicinity of welded joints at the superheater tubes of a heat recovery steam generator (HRSG) in a Malaysian Electricity Company's power plant. This study performs the finite element (FE) analyses in order to identify the possible root cause failure of the deformed superheater tubes using software package of MSC PATRAN/NASTRAN. The locations of maximum stress induced by the deformed tube are determined. The correlation between the maximum stress and allowable restriction condition is presented, and it shows good correlations with the findings obtained from the visual inspection on site. (c) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码：329 / 339
页数：11
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