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Linear and Nonlinear Finite Element Analysis of an Exhaust Manifold With Included Bellows

[+] Author Affiliations
Scott E. Steinbrink, Mahesh C. Aggarwal, Kapilla I. M. Shepherd

Gannon University, Erie, PA

Paper No. PVP2007-26361, pp. 89-94; 6 pages
doi:10.1115/PVP2007-26361
From:
  • ASME 2007 Pressure Vessels and Piping Conference
  • Volume 3: Design and Analysis
  • San Antonio, Texas, USA, July 22–26, 2007
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 0-7918-4281-9 | eISBN: 0-7918-3804-8
  • Copyright © 2007 by ASME

abstract

The aim of this paper is to examine the utility of nonlinear analysis for structural response to thermal and mechanical loads, for a structure containing alternating regions of high and low stiffness as a result of inclusion of bellow sections. Utility is measured by comparison of results of linear and nonlinear analyses. The specific example used is that of an exhaust manifold for a large diesel engine. The paper discusses modeling of geometric and material nonlinearity, and makes recommendations in regard to which nonlinear effects are thought to be significant, based on the linear/nonlinear comparisons. The paper also contains general comments on the finite element modeling of structures containing bellows.

Copyright © 2007 by ASME

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