Experimental Investigation and Numerical Analysis on Fatigue Life of Bellows

被引：30

作者：

Pavithra, E. ^{[1
]}

Kumar, V. S. Senthil ^{[2
]}

机构：

[1] Veltech Rangarajan Dr Sagunthala R&D Inst Sci & T, Dept Mech Engn, Madras 600062, Tamil Nadu, India

[2] Anna Univ, Dept Mech Engn, Coll Engn, Guindy Campus, Madras 600025, Tamil Nadu, India

来源：

MATERIALS TODAY-PROCEEDINGS | 2018年 / 5卷 / 09期

关键词：

Inconel; 625; bellows; Fatigue life; Finite Element Method; INCONEL; 625; SUPERALLOY; FORMING PROCESS; MICROSTRUCTURAL EVOLUTION; HYDROFORMING PROCESS; ALLOY; TUBE; FAILURE; STRESS; SINGLE; JOINTS;

D O I：

10.1016/j.matpr.2018.06.232

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Bellows are complex shaped components which are widely used in pipe lines where the expansion and compression of the pipe occurs and absorbs the mechanical vibrations too, in high corrosion and high temperature environments. The constant movement and load which acts on the bellows leads to failure of the bellows. Thus, predictions of the fatigue life of the bellows are necessary. This paper investigates the fatigue behaviour of U shaped hydroformed bellows. The developments of meridional stress in bellows were found using the finite element method. The fatigue tests were conducted at room and elevated (650 degrees C) temperatures. The experimental results of the fatigue test correlates well with the numerical results. (C) 2018 Elsevier Ltd. All rights reserved.

引用

页码：18848 / 18856

页数：9

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