Static and Dynamic Analysis of Simply Supported Beams

Abstract

In this study, two deflection functions due to flexure and shear have been obtained for the global form of composite materials. Two different composite materials are selected for comparison of these deflection functions. These composites are: polymer matrix composite simply supported beam, reinforced by unidirectional fibers; and thermoplastic simply supported beam, reinforced by woven Cr-Ni steel fibers. In accordance with these different material properties, analytical and numerical solutions have been carried out. For 0, 30, 45, 60, and 90 fiber orientation angles, static and dynamic behavior of the two different composite materials are examined. Numerical solutions are given as graphical forms. In addition to modal analysis, two different composite materials have been realized. Natural frequencies and vibration modes are given as graphical forms. ANSYS and MATLAB software are used for numerical analysis of the different composite materials.

Study of unidirectional fiber reinforced epoxy composites in short-beam bending test

“…Also, investigations of the effect of shear on the deflection in simply supported composite beams have been recently carried out. [13][14][15] In a general review of material evaluation bending tests, Mullin and Knoell 16 discussed the theoretical origins of L t ratios (where L is the span length and t is the nominal thickness) and the effects of material variables and specimen defects such as voids. Westwater 17 observed that specimens with small L t ratios often fail by cracks running out to, or past, the support nose and also that the amount of overhang may affect the mode of failure.…”

“…Also, investigations of the effect of shear on the deflection in simply supported composite beams have been recently carried out. 13–15…”