Abstract :
Wing is the main structure of an airplane wing that serves to generate lift.
Wing on the UAV VTOL V-SKY 14 aircraft must have a structure that meets the
criteria of strength and stiffness and must be able to withstand the loads that
occur, one of which is bending loads. Wing bending strength can be identified by
bending testing. Bending test is a process of testing material by pressing it to get
results in the form of data about the bending strength of a material being tested.
The purpose of this final project is to determine the maximum stress and
maximum load that can be resisted by wings made of styrofoam and sandwich
composites and to find out how much the percentage increase in strength is. The
research method used is the experimental method, where the research starts from
the preparation of tools and materials, the process of making the wings, testing
the wings and doing calculations. The wing testing is carried out using the three
point bending method, where the wing is given a load centrally at one point in the
middle of the wing, then the wing is given a load continuously until the wing being
tested breaks.
The test results showed that the wing bending test made of styrofoam
material was able to withstand a maximum bending load of 249.9 N. While the
wing made of sandwich composite material was able to withstand a maximum
load of 316.54 N. For the percentage increase in the load that the wing could
withstand was 26.67%.