The paper presents a theoretical and an experimental investigation into the buckling of seven oblate hemi-ellipsoidal dome shells under external hydrostatic pressure. Four of the shells were made in glass reinforced plastic und three were made from a thermosetting plastic called solid urethane plastic. All the vessels were tested to destruction. The theoretical study was made with the aid of a non-linear finite element solution, where both geometrical and material nonlinearity were allowed for. Good agreement was found between experiment and theory for all the vessels. The very oblate domes failed axisymmetrically. Theoretical convergence was good for the more oblate domes but it was not as good as for the less oblate domes. This may have been because the less oblate domes did not fail in a classical axisymmetric manner as was expected.
The buckling of plastic oblate hemi-ellipsoidal dome shell under external hydrostatic pressure
Das Ausbeulen einer abgeflachten halbellipsenähnlichen Schalenkuppel aus Kunststoff unter äußerem hydrostatischen Druck
Ocean Engineering ; 28 , 7 ; 789-803
2001
15 Seiten, 21 Bilder, 4 Tabellen, 4 Quellen
Article (Journal)
English
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