Thin wallled cylinders under external pressure may be affected by instability phenomena particularly dangerous when taking place in the elastic domain. Geometric imperfections caused by fabrication processes heavily influence the critical pressure. In order to investigate the relationship between the collapse mechanism and the various types of imperfections affecting this kind of structures a series of experimental tests on scale models has been carried out. The dimensional parameters of the specimens have been selected in order to keep the instabiliy phenomenon in the elastic range. At the same time numerical calculations simulating the experimental tests have been performed by finite element method. The geometrical defects measured on the specimens were introduced in the correspondent numerical models. A good agreement was found in the comparison between experimental and numerical results.


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    Titel :

    Elastic instability of thin cylindrical shells: Numerical and experimental investigation


    Weitere Titelangaben:

    Die elastische Instabilität von dünnen Zylinderschalen: numerische und experimentelle Untersuchungen


    Beteiligte:
    Boote, D. (Autor:in) / Mascia, D. (Autor:in) / Monti, M. (Autor:in) / Rizzuto, E. (Autor:in) / Tedeschi, R. (Autor:in)

    Erschienen in:

    Ocean Engineering ; 24 , 2 ; 133-160


    Erscheinungsdatum :

    1997


    Format / Umfang :

    28 Seiten, 22 Bilder, 3 Tabellen, 16 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




    DYNAMIC INSTABILITY I N CYLINDRICAL SHELLS

    RADWAN, HATEM / GENIN, JOSEPH | AIAA | 1976



    Numerical Analysis of Cylindrical Shells

    Zachary, Ari / Laurita, Matthew / Smith, Marilyn et al. | AIAA | 2002



    Elastic stability of thin-walled cylindrical and conical shells under axial compression

    MORGAN, E. J. / AEROJET-GENERAL CORP. / AEROSPACE TANKAGE STRUCTURES SUPPORT SECTION et al. | AIAA | 1965