AerE 423 Ehrich Rodgers and Nick Williams. Background -Golf shafts provide a way for the golfer to generate force on the golf ball -To do this the golfer’s.

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Presentation transcript:

AerE 423 Ehrich Rodgers and Nick Williams

Background -Golf shafts provide a way for the golfer to generate force on the golf ball -To do this the golfer’s hands provide a force on one end while the golf ball provides a force on the other end -The dimensions below are common among clubs that conform with USGA rules, specifically a driver

Preliminary Analysis -The composite golf shaft is modeled as a cantilever beam with a circular cross-section -The model uses a conservative cross-sectional radius that is equal to the average of the butt radius and tip radius. L = 35 in F MAX -Design criteria for F MAX = 4000 lbs

Manufacturing 1. Construct a mold 2. Laid 9 layers fiberglass onto mold 3. Laid 1 layer a carbon fiber on top of fiberglass 4. Apply epoxy to outside 5. Lay out to cure

Manufacturing 1. Construct a mold

Manufacturing 2. Laid 9 layers of fiberglass onto mold 3. Laid 1 layer of carbon fiber onto fiberglass

Manufacturing

4. Apply epoxy to outside

Manufacturing 5. Lay out to cure

Testing Test for bending stiffness and vibration Test for maximum bending moment (failure)

Future Considerations Find a better way to lay the fibers around the mold Use pre-preg and a larger autoclave to cure