Study the Effect of the Internal Crack on the Vibration Values using the FEM
Abstract
This study of changing the locations of internal crack in medal of loaded simply supported beam by finite Element method (FEM) using of FE analysis software (ANSYS v.14.0) ,the results show that changing the locations of crack along (Y-axis) for(1/2H,1/4H,3/4H) changing the values of fundamental frequency and mod shapes of beam. It been found that the higher frequencies values at the even frequencies, and the frequency increases as we approach the upper and lower beam where it is less for the first and second frequencies when the crack closer to the upper end and more at the remaining frequencies and this reflects the amount of energy absorbed in the crack