DAMAGE DETECTION IN AN ELASTIC ROD USING FINITE ELEMENT SIMULATION TO LONGITUDINAL IMPACT WAVES

摘要

In this paper, the location of damage and a measure of the severity of the damage are detected using finite element simulation. The elastic rod is subjected to impact of a small rigid mass. Time variation of the velocity, stress, and contact force are monitored at the contact end. The location of the damage is detected, using the wave propagation principles, by comparing the results of damaged and undamaged rods.