Abstract
<jats:p>Cutouts are passages, used for electrical wires, control rods, hydraulic lines in aircraft structural design, induce stress concentration leading to failure of the structure. With advancement in the manufacturing industry, various geometrical shapes can be possible that can be applied to the requirements mentioned above. Most of the previous studies are based on the cutouts having regular shapes like the circular, triangular and rectangular shapes. As the technology is improving, with the help of 3D printing it is now possible to create any shape instead of the regular shaped cutouts, other geometrical shaped cutouts can also be used after thoroughly analyzing its behavior. So all the geometrical shapes have to be analyzed for the static and modal analysis and conclusions have to be drawn. These analyses are carried out in ANSYS. Moreover, there is lack of information concerning the modal analysis of the plates having cutout. Most of the studies on aircraft cutouts are based on static analysis, Modal analysis is not discussed. But the aircraft must be tested or analyzed for both the static and dynamic load carrying capacity. In this paper, we are studying about the various geometrical shapes and analyzing the static and modal analysis in order to provide information about the analyses. From the analysis it is observed that modal analysis also plays a vital role. As the shapes changes, the frequency changes accordingly and the deflection. All the results have been tabulated and compared for ease of comparison of the behavior of all geometrical shapes in terms of frequency and deflection. A new shape is also included that is the plus sign made of two rectangles. It is an experiment to study its behavior when loads are acted. It is observed that all the geometric shapes will behave differently depending on the number of sides present in each shape.</jats:p>