Structural Efficiency

In this project, we used cards to build a structure that was supposed to hold 5 lbs. We weighed it and then tested to see how much weight it would hold. We then used these numbers to calculate the structural efficiency.

Competition Results
Our structure did fairly well compared to the class. This is because the structure didn't weigh very much so the structural efficiency rating was higher.

Calculation
Our structural efficiency rating was 436.1

Conclusion
One of the changes that we made that really helped was after testing our first design, we started over and changed from a triangle structure to a circular tube structure with cards in between. This made our structure a lot stronger.