Download Composite Materials in Maritime Structures, Volume 2 by R. Ajit Shenoi (editor), John F. Wellicome (editor) PDF

By R. Ajit Shenoi (editor), John F. Wellicome (editor)

The 2 volumes that contain this paintings offer a entire advisor and resource publication at the marine use of composite fabrics. the 1st quantity, primary elements, presents a rigorous improvement of conception. parts lined comprise fabrics technological know-how, environmental features, creation expertise, structural research, finite-element equipment, fabrics failure mechanisms and the position of ordinary try out systems. An appendix supplies tables of the mechanical homes of universal polymeric composites and laminates in marine use. the second one quantity, functional issues, examines how the idea can be utilized within the layout and development of marine constructions, together with boats, submersibles, offshore buildings and different deep-ocean installations.

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Extra info for Composite Materials in Maritime Structures, Volume 2 (Cambridge Ocean Technology Series (No. 5))

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The preferred approach is to undertake FE analysis at two levels. The global response of the hull structure can be modelled with sufficient accuracy using general purpose codes and isotropic elements. This will give a realistic assessment of strain distribution around the hull section and deformation of hull and deck panels between supporting bulkheads. To examine stress distribution at a detailed level, local models of stiffened panels can be created and boundary conditions determined from the global model can be applied.

The main deck is longitudinally stiffened with the exception of short intercostal beams to support discontinuities and stub beams along the deck edge which connect to the hull side frames. Shell plating thickness is on average just over 20 mm, with extra shell reinforcement placed locally in way of tanks, slamming region and other highly loaded points. Deck plating thickness ranges from STRUCTURAL SYNTHESIS 21 15-25 mm, reflecting the variation of longitudinal loading and lateral pressure along the length of the hull.

However, in all cases designers are advised to seek technical assistance from manufactures before final decisions are made. When dealing with FRP materials (and particularly their possible combination with alloy and steel components) Lees [7] reduces the choice to: INTRODUCTION 45 epoxy: one and two part acrylic: true one part, pseudo one part and two part polyurethane (PU): one and two part In addition, use of the FRP base resin might be considered, but this will not generally offer the same range of capabilities as the first two, particularly in structural joints.

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