Truss Design
Explanation
For this project, groups were assigned the task of creating two trusses using the directions given them using balsa wood and glue. The trusses were then tested to see what amount of force it would take for the trusses to break, which were recorded using video and graphs.
Sketches
Graph
Video
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Efficiency Evaluation
Truss W =Weight of truss (g) W= Converted (N) F =Force applied at failure (N) Efficiency calculation (F / W)
Model 1 2.8 0.027 47.4 1755.56%
Model 2 4.2 0.041 62.2 1517.07%
Model 1 2.8 0.027 47.4 1755.56%
Model 2 4.2 0.041 62.2 1517.07%
Truss Calculations for Truss 1 |
Truss Calculations for Truss 2 |
Conclusion Questions
1. The trusses failed at both the joints and also failed within some of the members. The calculations predicted that the members that broke were the members that would be experiencing the most amount of force.
2. If I were to redesign the trusses I would add more members were the greatest amount of force would be exerted which would distribute the force more evenly along the truss which would decrease the chance of failure.
2. If I were to redesign the trusses I would add more members were the greatest amount of force would be exerted which would distribute the force more evenly along the truss which would decrease the chance of failure.