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Abstract

This study implements the general design optimization procedures that have been formulated for composite materials to the design of silo structures. Recent Eurocodes and other guides have presented a thorough summary of the necessary procedures for steel silo design. However, design guidance for composite silos is less readily available. While the use of a composite material requires consideration of the anisotropy of the material properties, it also allows a greater degree of interaction between the material and the design requirements. This paper, and its companion, present a genera) approach to the optimized design of the main parts of a cylindrical silo structure, i.e. the upper cylindrical section (Part 1) and the hopper (Part 2) respectively. The general methodology is outlined, and the effectiveness of the optimization is demonstrated using a particular example. In this case, the resultant optimized design produced a 16 per cent saving in wall thickness, and thus material cost, in comparison with the non-optimized wall thickness.

Keywords

silos glass fibre reinforced plastic composite shell structures buckling design optimization

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Design optimization of silo structures made from composite materials Part 1: Design of the vertical cylindrical section

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