Detecting and Quantifying Structural Damage Using Sensor Based Algorithms

Abstract

A crack or other type of damages causes a sharp discontinuity in the rotational displacement curve of a load-bearing structure. However, if the beam is not sufficiently loaded or the crack depth is very small, the discontinuity may be impossible to detect using conventional method. To understand cracks in concrete, important parameters such as characteristic length, fracture energy, and critical crack width are used. In this project, the crack width is estimated as either crack mouth opening displacement (CMOD/COD) or crack tip opening displacement (CTOD).This project involves early detection of cracks by sensors and quantification of the with help of algorithms. For the testing beam are used. Internal cracks are detected by ultrasonic sensors with the help of IoT. To quantify the cracks and show the position of the cracks, algorithms are used. Therefore, to monitor the damage at the early stage thereby avoiding the degradation of the structure we are proposing a regular monitoring system.