Diseño de un sistema para la localización de daños en estructuras metálicas y de material compuesto expuestas a cambios de temperatura (Etapa II).

Abstract

Given the need for human beings to reduce the risk that structures can pose, whether due to failures in their construction or detriment to their qualities due to factors such as use, climatic changes, or accidents that affect their integrity, Structural Health Monitoring It has been positioning itself in a relevant place, given that it aims to reduce precisely this risk, in addition to improving the efficiency of maintenance processes, both predictive and corrective, coupled with the reduction in time due to interruption of operation, a fact that has a positive impact on activities of the human being that interacts with civil and / or military structures. The present project seeks to develop a system that, using Lamb waves, allows the location of different types of damage to metal and composite structures, but considering damage different from that of the deliberately incorporated mass (type of damage that had come working on previous projects), such as perforations, complete and superficial fissures. Furthermore, the location of the sensors will be explored, either to reduce their quantity or to improve sensitivity, and since structures are generally subject to changes in temperature due to environmental issues, this project will seek to make the system immune to variations. thermal sensors, and in the same way the insensitivity to damage in the sensing transducers will be explored, verifying their fault tolerance, with application in wind turbines, airplanes and drones, among other structures, which have their main construction materials in composite material and aluminum. .