Investigation of notch effect on vibration behavior of filled and unfilled composite beam

Abstract

In this study, the effect of the notches on natural frequencies of ceramic particles filled and unfilled unidirectional composite beams are investigated numerically. Shape, number, size and location of the notch are examined for unfilled unidirectional composite beam. Moreover, the effect of the particle additives on the natural frequency of the composite beam with V notch is also examined. Three types of notch shape are considered: U, V and square (S). SiC, Al2O3 and B4C are used as the additive particles. According to the results, minimum natural frequency is found in the S notch. Furthermore, it can be seen from the results that natural frequency of S notch is the most affected by increase in the number, size and location of notch. As for the effect of the particle additives, maximum natural frequency is found in the beam with filled B4C and V notch as compared with the others.