Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/13252
Title: Optimal designs of submerged domes
Authors: VO KHOI KHOA
Keywords: Domes, membrane analysis, buckling, Ritz method, transverse shear deformation, hydrostatic pressure.
Issue Date: 30-May-2008
Source: VO KHOI KHOA (2008-05-30). Optimal designs of submerged domes. ScholarBank@NUS Repository.
Abstract: This thesis is concerned with the optimal designs of submerged domes where both strength and buckling criteria have been taken into consideration. Membrane analysis and minimum weight designs of submerged domes of uniform and constant strength were investigated in order to provide better designs for the construction of submerged domes. The elastic buckling problem of moderately thick domes was also studied. The effect of transverse shear deformation is included by using the Mindlin shell theory so that the critical buckling pressure will not be excessively overestimated when the dome is relatively thick. By using the Ritz method, the buckling capacities of moderately thick domes under its own selfweight and hydrostatic pressure were obtained. Moreover, based on a family of spherical and parabolic domes submerged under a given water depth, the optimal dome shapes for maximum enclosed airspace and minimum weight were determined.
URI: http://scholarbank.nus.edu.sg/handle/10635/13252
Appears in Collections:Ph.D Theses (Open)

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