Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Prediction of buckling loads based on experimentally measured initial imperfections
Correlation studies between experimental buckling loads and analytical predictions based on experimentally measured initial imperfections were carried out for axially compressed isotropic and stiffened cylindrical shells. By expanding the response of a cylindrical shell in truncated Fourier series, the nonlinear Donnell type shell equations for imperfect stiffened shells were reduced to a set of linear equations in the correction terms by Newton's method of quasilinearization. Solutions were obtained for isotropic and for ring and stringer stiffened shells. The amplitudes of the initial imperfections used in the analysis were calculated from the corresponding Imbert-Donnell imperfection models. The free parameters in this imperfection model were obtained by least square fitting the harmonics of the experimentally measured initial imperfections. It was possible in all cases to achieve satisfactory correlation using only a few suitably chosen deflection and imperfection modes.
Prediction of buckling loads based on experimentally measured initial imperfections
Correlation studies between experimental buckling loads and analytical predictions based on experimentally measured initial imperfections were carried out for axially compressed isotropic and stiffened cylindrical shells. By expanding the response of a cylindrical shell in truncated Fourier series, the nonlinear Donnell type shell equations for imperfect stiffened shells were reduced to a set of linear equations in the correction terms by Newton's method of quasilinearization. Solutions were obtained for isotropic and for ring and stringer stiffened shells. The amplitudes of the initial imperfections used in the analysis were calculated from the corresponding Imbert-Donnell imperfection models. The free parameters in this imperfection model were obtained by least square fitting the harmonics of the experimentally measured initial imperfections. It was possible in all cases to achieve satisfactory correlation using only a few suitably chosen deflection and imperfection modes.
Prediction of buckling loads based on experimentally measured initial imperfections
Voraussage der Knicklasten basierend auf experimentell gemessenen Anfangsstrukturfehlern
Arbocz, J. (Autor:in) / Babcock, C. (Autor:in)
BUCKLING OF STRUCTURES - SYMP. ; 291-311
1974
21 Seiten, 7 Bilder, 9 Tabellen, 29 Quellen
Aufsatz (Konferenz)
Englisch
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