Analysis and Comparison of Pattern of Crack Growth Rate along Vibrating Cantilever Beam using FEM Package

摘要

Using accelerometer, values of variables V, B, F, and D were recorded for frequencies 60 Hz, 80 Hz, 100 Hz, and 120 Hz for beam of size 500mm × 50mm × 12mm under vibration. Considering, crack growth rate as an additional variable, a mathematical model was developed using dimensional analysis and calculated values of G were plotted to observe crack growth rate along the beam. Vibration analysis was reconsidered under similar condition using FEM Package (ANSYS) for cantilever beam system. Plots developed from mathematical model as well as from simulation were compared and analyzed to confirm pattern of crack growth rate associated with vibrating cantilever beam.