Abstract :
In the process of developing air transportation technology in this era, much
must be considered and re-examined by prospective engineering such as in sizzling
aircraft, among others, the structure. The Cargo-x UAV aircraft is an aircraft
designed as an aircraft to carry medicines, packages and blood bags in areas that
require fast and efficient handling. With this goal, of course, cargo-x UAV aircraft
must have toughness in all conditions. One of the most important components is
wing, in analyzing the structure of the wing, of course must have a lightweight and
strong material, among others: composite material that serves to have the
advantage of strength and light composite sandwich itself consists of thin skin and
thick core that serves to provide protection on the surface of the component.
The process of modeling wing using help of Catia V5R21 software, and
composite sandwich structure analysis process, using MSC patran/Nastran 2012
software with import stage, meshing, material property input, load and pedestal,
analysis process. The results of the analysis will be in the form of the maximum
voltage of the wing structure. Furthermore, calculations will be done to know the
value of margine of safety in isotropic elements, namely in the core and spar, and
failure indices on composite elements namely skin.
The maximum voltage result that occurs in the skin structure is 62.5 MPa
with failure indeces layer 2 of 0.218, for the core part the maximum voltage that
occurs is 1.16 MPa, with a margine of safety -0.447, for the maximum voltage spar
part that occurs at 453 MPa with a margine of safety of 1.75, then based on the
data tsb UAV cargo-x wing structure is not safe for Core, And safe for skins and
spar.