Objective of Task: To design and make a model motor bridge which displays high structural efficiency i.e. high strength- to-weight ratio.
Dimensions of ice-cream sticks:
- Length: 113 mm
- Width: 10 mm
- Thickness: 2 mm
Dimensions of bridge:
- Length: 550mm - 650mm
- Width: Max. 120mm
- Height: Max. 200mm
- Weight: Max. 500g
Attaching the ice-cream sticks:
- Ice-cream sticks can be cut or joined in any fashion
- Joining can be done using adhesive/ glue only
- No other materials such as string, tape, wire is allowed
- Bridge may be stained, coated or painted in any fashion
Testing the load of the bridge:
- Structural efficiency of the bridge = Load supported in grams/ mass of bridge in grams
- The load will be added using a loading bar placed across the centre of the deck
- Masses will be supported on a suspended vertical loading rod
- Loading will stop once bridge failure occurs
- any member of the bridge breaking
- total collapse
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