Simulation of Numerical Testing of Ultrasonic in Pressure vessels Using FEM

Nondestructive testing (NDT) is evaluation of objects without destructive mean in order to find out defects or discontinuities of that object. Ultrasonic testing is one of these tests. Ultrasonic wave methods is the leading mechanism for NDT and structural health monitoring. Computational models of ultrasonic wave excitation, propagation can be very profitable in different apparatuses[۱]. The use of ultrasonic ways to identify defects was introduced by discovering piezoelectricity. In order to test pressure vessels by this technique, the cylindrical shell can be modeled. The objective of this study is devise a Multiphysics modeling and simulation process to develop Ultrasonic system with piezoelectric film sensors for finding defects in Pressure vessels[۲]. Simulation of piezoelectric, cylindrical shell and measuring vibration is done by ANSYS APDL and output charges and imposed charges were determined for testing Pressure vessel. Results Show that simulation can reduce, time for Ultrasonic testing in, field and while operation apparatuses.