Análisis de flexión en tuberías híbridas con fibras de vidrio para sentinas en barcos pesqueros

Abstract

The project demonstrates the properties of the new fiber-metal hybrid material, as the material solution to localized corrosion inside the bilge pipes in fishing boats. The fiberglass acts directly on this problem, preventing internal corrosion, while the steel as a metallic layer protects the fiberglass from blows that could fracture the plastic, absorbing water and thus prevents the loss of its mechanical properties. The hybrid material consisted of an inner layer of a 1.2 mm thick black steel tube reinforced by a layer of MAT450, the outer layer consisted of a 1.8 mm tube internally reinforced with Roving800, both layers were joined with the use of polyester as adhesive. The hybrid material specimens were compared with 3 mm thick steel pipes using 3-point bending tests. In addition, the effect of simulated corrosion by mechanical wear of the internal metal tube was compared. The results revealed that corrosion does not affect the hybrid material in any way, and its mechanical properties do not reach the same level as that of steel, with the current proposed configuration. Keywords: corrosion, wear, mechanical properties, composite materials.