Study on the bending characteristics of laminated composite plate structures

Abstract To investigate the bending characteristics of composite laminates, parametric analysis was carried out based on finite element simulation. By analyzing the variation of the bending deflection with the aspect ratio, width thickness ratio, laying angle, and elastic modulus of the structure, the variation rule of the bending characteristics is obtained. The conclusion is as follows: (1) the larger the aspect ratio is, the larger the bending deflection is, but after reaching a certain ratio, the bending deflection begins to appear smaller. (2) the bending deflection changes more and more as the width-thickness ratio becomes larger. (3) the bending deflection of fixed at both ends is much larger than that of fixed at all four ends under the remaining conditions. (4) the larger the elastic modulus ratio is, the smaller the bending deflection is, under the remaining conditions remain unchanged.