Improving damage resistance of a composite pole using a computer experiment strategy
| Autor: | Abbas S. Milani, Damoon Motamedi |
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| Rok vydání: | 2011 |
| Předmět: | |
| Zdroj: | Proceedings of the Institution of Civil Engineers - Engineering and Computational Mechanics. 164:171-181 |
| ISSN: | 1755-0785 1755-0777 |
| DOI: | 10.1680/eacm.2011.164.3.171 |
| Popis: | Transmission poles are widely used for transmitting electricity from power plants to industrial and commercial sites as well as residential areas. The total cost of a transmission line is partly driven by the maintenance cost of poles and wires. To reduce this cost, designers can choose more durable materials and optimal design strategies. In recent years, the use of polymer composite transmission poles has become more popular and they have been implemented in a number of power systems. In this paper, a tapered composite pole under lateral wind load is modelled and its damage resistance under a set of composite failure criteria is investigated. The composite pole is made of glass fibre-reinforced polyester and is manufactured by filament winding. By focusing on fibre orientation angles in the pole layers, a computer experiment (simulation) strategy is designed along with a maximin space-filling sampling criterion. The goal is to choose the best combination of ply angles that can minimise pole damage while maintaining minimal computational cost. A 37% improvement in the matrix cracking failure index was achieved from the initial value of 1·00 (i.e. a damaged pole) to the optimised value of 0·63 (no damage). |
| Databáze: | OpenAIRE |
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