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Design of Y stiffened panels in double hull tanker under axial compressive loads
Citation
Elhanafi, AS and Badran, SF and Leheta, HW, Design of Y stiffened panels in double hull tanker under axial compressive loads, Analysis and Design of Marine Structures, 25-27 March 2016, Espoo, Finland, pp. 291-300. ISBN 978-1-138-00045-2 (2013) [Refereed Conference Paper]
Copyright Statement
Copyright 2013 Taylor & Francis Group
Official URL: http://dx.doi.org/10.1201/b15120-40
Abstract
In typical tanker ship structures, deck and bottom panels are reinforced by longitudinals
(stiffeners) in the longitudinal direction and transversely supported by widely spaced transverse structures
(such as transverse bulkheads, deck beams and bottom floors). The conventional longitudinals are usually
Tee, angle, bulb or flat bar profiles, while the transverses are typically T-beam sections. The objective
of the present work is to replace the longitudinal conventional stiffener profiles with new longitudinal Y
(Hat + Tee/Angle) stiffener profiles in order to obtain more strength/safety margin to weight ratio based on
the advantage of using Hat section (closed section) to give more effective plate allowing an increase of the
stiffener spacing, hence a reduction of the number of stiffeners. The weight of the stiffened deck and bottom
panels and the unstiffened panel width using the new Y stiffener profiles are less than those panels with the
as-built conventional stiffener profiles. The section modulus of the new Y stiffener profiles with the effective
plate and the safety margin (ultimate strength minus applied compression stress) of deck and bottom panels
with the new Y stiffener profiles are larger than for panels with the as-built conventional stiffener profiles.
Item Details
Item Type: | Refereed Conference Paper |
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Keywords: | Stiffened panels, IACS, Axial load, Ultimate strength, Y-stiffeners |
Research Division: | Engineering |
Research Group: | Maritime engineering |
Research Field: | Ship and platform structures (incl. maritime hydrodynamics) |
Objective Division: | Expanding Knowledge |
Objective Group: | Expanding knowledge |
Objective Field: | Expanding knowledge in engineering |
UTAS Author: | Elhanafi, AS (Dr Ahmed Elhanafi) |
ID Code: | 111780 |
Year Published: | 2013 |
Deposited By: | NC Maritime Engineering and Hydrodynamics |
Deposited On: | 2016-10-06 |
Last Modified: | 2016-11-22 |
Downloads: | 0 |
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