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Rubbermaid on wheels

Aero E 423 Jace Indrelie , Ben Mac Murray, Alex Smith. Rubbermaid on wheels. Design Constraints. Purpose: replace Larry Genalo’s Materials Engineering demonstration kit Want to hold and transport around 50 lbs of materials Integrate into demo by standing on completed container. Design.

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Rubbermaid on wheels

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  1. Aero E 423 JaceIndrelie, Ben Mac Murray, Alex Smith Rubbermaid on wheels

  2. Design Constraints Purpose: replace Larry Genalo’s Materials Engineering demonstration kit • Want to hold and transport around 50 lbs of materials • Integrate into demo by standing on completed container

  3. Design • Edges & corners will see the largest stress concentration • Double layer of plies at these points • Risk of sides buckling while standing on top for demo • Used foam core to increase bending stiffness

  4. Mold

  5. Apply First layer

  6. Blueboard foam core *Inserts not shown

  7. Second layer

  8. Completed with inserts

  9. Complete with wheels and lid attached

  10. Problems Encountered • Thin layer of plaster is infused with interior surface. Complete removal will damage inner wall • Use release agent or release film • Difficult to create smooth fiber layer around complex geometry • Cut plies to exact shape • Use different manufacturing method • Ran out of epoxy - top edge of container was unfinished

  11. Questions?

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