application of steel cables in the tensile reinforcement in flexible ducts used in the oil industry

摘要

application of steel cables in the tensile reinforcement in flexible ducts used in the oil industry. the present invention aims to replace the strips with steel cables in the structure of the conventionally called tensile reinforcement, which guarantees tensile strength to flexible ducts. the use of steel cables has the potential to increase fatigue performance and, consequently, the service life of flexible ducts. equipment will be specifically designed and built for the winding of steel cables over the innermost layers of the flexible ducts. structural parameters, such as dimensions and number of cables per layer, angle between layers, pitch etc. will be defined by an optimization process that will involve numerical simulation and laboratory tests.