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Above are the initial concepts of the airplane made in solid works.





Below are the final CAD aseembles of all the components of the airplane with except of electronics and monokote.
Below is a sample of the stress and displacement plots performed on the wing.  The wing is considered to be symmetrical, and therefore to save computing time, it was modeled such that the end at the root was fixed, just as if it would be fixed to the other side of the other half of the wing by a kevlar wrap and adjoining bolts. Note that these plots are conservative in their results for several reasons.
  •         There is no kevlar wrap at the root of the wing
  •         There is no monokote applied to the wing during this analysis.  Monokote increases the strength of the wing dramatically
  •         There is no adjoining aluminium bar in this analysis.  This bar would increase the resistance to displacement, as it would also make the wing able to bear more stress.

These plots were created assuming a maximum load of 31 lbs distributed on each wing.  This is twice the load for which the team has supplied weights.  The reason for doing this is to determine how much the wings will deflect assuming both a gust of wind and dynamic loading due to the impulse upon landing.  If the team were to only consider loading during steady stable flight, we would not be prepared for a worst case scenario.

The maximum displacement experienced in this analysis is about 1.2 inches at the tip of the wing.

The maximum stress experienced is about 1500 psi.  However, it is taked into account that this high concentration of stress is at a location of the wing where multiple corners are joined together.  This exact location is depicted in the graphic above entitled stress plot.  It is the location with the brightest mark of red.  The amount of stress concentration in the FEA analysis is unrealistic, and therefore it is a value that is taken with a grain of salt.  The team beleives that the wing will still hold together at that location even during extreme cases of static and dynamic loading.
Stress plot  under a 31 lb static load
Displacement plot  under a 31 lb static load