Sensors For Structural Health Monitoring: An Experimental Evaluation

Pradeep Kumar, Beena Mol M

Abstract: A Civil Engineering structure’s performance is strongly influenced by its service condition, age, the type of material employed and the structure’s plan. Apart from performance, every structure’s critical characteristic must be serviceability, safety, and reliability. As a result, it is critical to adopt a credible technology that is capable of conducting a thorough study and analysis of the structure. Structural Health Monitoring (SHM) is an internationally accepted technology that is used in a variety of applications. By utilising a damage detection and analysis strategy, SHM advancement aids in extending the service life of the structure. Sensors are critical to the SHM system’s operation. Generally, structures fail as a result of unique geometric traits and material deterioration that impair their performance. The SHM’s major goal is to alert the system during the early stages of damage start and to avoid further disaster propagation by continuous monitoring with structurally implanted sensors. The SHM continuously monitors the structure through displacement, strain estimation, impact, load, pH rate, crack appearance, vibration signatures, humidity, and crack size. The article discusses the experimental evaluation of two types of sensors, fibre optic sensors and piezoceramic sensors, which are widely employed in the majority of applications. This paper emphasises the future metrics and issues in sensor innovation and SHM technology.