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.
Linear and Nonlinear Finite Element Analysis of an Exhaust Manifold With Included Bellows
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Steinbrink, SE, Aggarwal, MC, & Shepherd, KIM. "Linear and Nonlinear Finite Element Analysis of an Exhaust Manifold With Included Bellows." Proceedings of the ASME 2007 Pressure Vessels and Piping Conference. Volume 3: Design and Analysis. San Antonio, Texas, USA. July 22–26, 2007. pp. 89-94. ASME. https://doi.org/10.1115/PVP2007-26361
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