Table of Contents
International Journal of Metals
Volume 2015 (2015), Article ID 957925, 9 pages
Research Article

Numerical Investigations on Characteristics of Stresses in U-Shaped Metal Expansion Bellows

1Department of Mechanical Engineering, M. E. Society’s College of Engineering, Pune, Maharashtra 411001, India
2Department of Mechanical & Materials Technology and Department of Technology, S.P. Pune University, Pune 411007, India
3Department of Mechanical Engineering, G.S.M. College of Engineering, Pune, Maharashtra 411045, India

Received 5 May 2015; Revised 23 July 2015; Accepted 6 August 2015

Academic Editor: Yuanshi Li

Copyright © 2015 S. H. Gawande et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Metal expansion bellows are a mechanical device for absorbing energy or displacement in structures. It is widely used to deal with vibrations, thermal expansion, and the angular, radial, and axial displacements of components. The main objective of this paper is to perform numerical analysis to find various characteristics of stresses in U-shaped metal expansion bellows as per the requirement of vendor and ASME standards. In this paper, extensive analytical and numerical study is carried out to calculate the different characteristics of stresses due to internal pressure varying from 1 MPa to 2 MPa in U-shaped bellows. Finite element analysis by using Ansys14 is performed to find the characteristics of U-shaped metal expansion bellows. Finally, the results of analytical analysis and finite element method (FEM) show a very good agreement. The results of this research work could be used as a basis for designing a new type of the metal bellows.