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Using 6061 aluminum angles with a yield strength of 34,000 and a max stress of 16,600 psi under the design loading conditions results in a factor of safety of 2.
A finite element analysis was also performed on the frame members using Abaqus 6.11. The analysis confirmed that 1in aluminum angles to be used on the field testing prototype will withstand the loading conditions while accounting for the safety factor of 2. A tetrahedral mesh was used and seeded every 20 mm along the edges as can be seen in the picture below.
[[File:Mesh.jpg|thumb]]
Boundary and loading conditions at the 30ͦ tilt angle.
[[File:FEA - 30 - bc and loading.jpg|thumb]]
Boundary and loading conditions at the 60ͦ tilt angle.
[[File:FEA - 30 - bc and loading.jpg|thumb]]
The stress and deflection distribution for the 30ͦ tilt angle can be seen in the pictures below.
[[File:FEA - 30 - stress analysis.jpg |thumb]]
[[File:FEA - 30 - deflection analysis.jpg |thumb]]
[[File:FEA - 60 - stress analysis.jpg |thumb]]
[[File:FEA - 60 - deflection analysis.jpg |thumb]]
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