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The journal International Shipbuilding Progress (ISP) was founded in 1954. Each year four issues appear (in April, July, September and December). Publications submitted to ISP should describe scientific work of high international standards, advancing subjects related to the field of Marine Technology, such as:
- Concept development
- General design of ships and offshore objects
- Ship and offshore structural design
- Hydro-mechanics and -dynamics
- Maritime engineering and machinery systems
- Production processes of all types of ships and other objects intended for marine use
- Production technology and material science
- Shipping science, economics, and all directly related subjects
- Ship operations
- Offshore and ocean engineering in relation to the marine environment
- Marine safety
- Efficiency, lifecycle, and environment
- Ice-related aspects for ships and offshore objects.
The contents of the papers may be of a fundamental or of an applied scientific nature and must be of the highest novelty and rigor.
Authors: Shama, M.A.
Article Type: Research Article
Abstract: The paper examines the effect of varying the different ship section parameters on the shear flow distribution and maximum shear stresses at the section neutral axis due to longitudinal vertical shear force. The contribution of the side longitudinal bulkheads to the shear carrying capacity of the main hull girder is also investigated. The analysis is limited to tankers having twin longitudinal bulkheads and is carried out in the form of a parametric study using the University IBM 1620 digital computer. The results are given in terms of ship depth, thickness of side shell plating and the applied shear force …and are represented in tabular and graphical forms. It is concluded that the thickness of side longitudinal bulkhead plating has the major effect on the magnitude of the maximum shear stress in and the participation of the longitudinal bulkheads to the shear carrying capacity of the main hull girder. It is also concluded that the ratio of effective thickness of bottom plating to effecting thickness of side shell plating and the transverse position of side longitudinal bulkheads have an appreciable influence on the maximum shear stress and on the shear carrying capacity of the main hull girder. Further, it is shown that it is possible to determine, from a series of curves the maximum shear force or the relationship between ship section parameters that will not induce shear stresses greater than a maximum allowable value. A sample of these curves is given in the paper together with a numerical example. Show more
Citation: International Shipbuilding Progress, vol. 16, no. 184, pp. 357-369, 1969
Authors: Huse, Erling
Article Type: Research Article
Abstract: This report presents some simple theoretical considerations of how the transverse slope of the sections of the stern above the propeller is expected to influence the propeller-induced vibratory surface force in vertical direction on the afterbody. The results indicate that flat-bottomed sections are preferable.
Citation: International Shipbuilding Progress, vol. 16, no. 184, pp. 370-380, 1969
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