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

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

The 2 volumes that include this paintings supply a entire consultant and resource publication at the marine use of composite fabrics. the 1st quantity, primary facets, offers a rigorous improvement of thought. parts coated comprise fabrics technological know-how, environmental elements, construction expertise, structural research, finite-element tools, fabrics failure mechanisms and the position of normal try strategies. An appendix provides tables of the mechanical houses of universal polymeric composites and laminates in marine use. the second one quantity, functional issues, examines how the speculation can be utilized within the layout and development of marine constructions, together with boats, submersibles, offshore constructions 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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2. This is similar to steel ship design, with a number of additional analysis tasks arising from the type of material and the requirement for shock resistance in the case of MCMVs. Throughout the design process attention must be paid to structural continuity, stiffener and tee-joint attachments and terminations, as well as the provision of support for machinery and equipment. 2 General arrangement - influence on structure Certain features of the ship's general arrangement can have a marked influence on the complexity, and hence the cost, of the structure.

In many cases limited numbers of bolts may be retained to accommodate extreme conditions or facilitate ease of fabrication and handling. In particular, care should be taken to evaluate some or all of the following possible problems: dependence of durability on processing conditions the need to adapt joint designs to avoid cleavage failure limited resistance to extreme service conditions - particularly heat and shock loads may creep at high temperatures optimum strength is not realised immediately specialised jigs may be required for assembly bonded structures are not easily dismantled for repair no straightforward, non-destructive quality control procedures exist.

The resin used for the rest of the vessel was to be a standard isophthalic polyester resin. The minimum requirements for tensile and compressive strengths that the laminates were to fulfil were set to 180 MPa in 0°and 90° fibre directions of the woven roving with a Young's modulus of 12000 MPa. The target for the delamination strength was set to be about 17-22 MPa for the laminates built-up with vinyl ester resin and 10-15 MPa for laminates built-up with normal isophthalic polyester resin. The core material was to fulfil several different requirements for an optimised sandwich design like: low density high shear strength and stiffness high shear strain at failure The correct specification of the core material was therefore essential and the different qualities had to be chosen carefully.

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