In this paper the expansion bellows which was designed to make compensation for the mutual axial displacement of the fuel line flanges is considered. The aim of this study to evaluate the performance of the bellows under durability test conditions and estimate of durability according to the low-cycle strength criteria. Considered bellows is a two-layer corrugated shell which works in very difficult conditions. At the same time there are all possible kinds of nonlinearities such as large displacements, advanced plastic deformations, contact interactions of the individual corrugations. By using the finite element method the modeling of the stress-strain behavior of the bellows is carried out, taking into account physical and geometrical nonlinearities, contact interaction. It leads to an estimation of the accumulated plastic strains and enables the calculation of the fatigue life of bellows. It is performed by the low-cycle strength criteria using different assessment methods of the Basquin-Coffin-Manson`s equation parameters. The results of durability evaluation were compared with experimental data. Obtained estimations of the bellows durability are in good agreement with the experimental data.


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    Titel :

    Fatigue life prediction for expansion bellows


    Beteiligte:
    Aistov, A. I. (Autor:in) / Skvortsov, Yu. V. (Autor:in) / Chernyakin, S. A. (Autor:in) / Perov, S. N. (Autor:in) / Sivasundaram, Seenith (Herausgeber:in)

    Kongress:

    ICNPAA 2016 WORLD CONGRESS: 11th International Conference on Mathematical Problems in Engineering, Aerospace and Sciences ; 2016 ; La Rochelle, France


    Erschienen in:

    Erscheinungsdatum :

    27.01.2017


    Format / Umfang :

    10 pages





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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