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Jason He

Jason He

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Simulations on two different composite stack ups, figuring out the best material (unidirectional vs weave) for the catamaran.

Stackup 1

  1. Unidirectional Prepreg (230 GPa) 0 degrees
  2. Unidirectional Prepreg (230 GPa) 90 degrees
  3. 5/8" Honeycomb Core
  4. Unidirectional Prepreg (230 GPa) 90 degrees
  5. Unidirectional Prepreg (230 GPa) 0 degrees

Stackup 2

  1. Weave Prepreg (230 GPa) 0 degrees
  2. Weave Prepreg (230 GPa) 45 degrees
  3. 5/8" Honeycomb Core
  4. Weave Prepreg (230 GPa) 45 degrees
  5. Weave Prepreg (230 GPa) 0 degrees

Note: 0 degrees is the path from left to right on the catamaran

...

  1. Weave Prepreg 0 degrees
  2. Weave Prepreg 45 degrees
  3. 5/8" Honeycomb Core
  4. Weave Prepreg 45 degrees
  5. Weave Prepreg 0 degrees


My initial analysis:

  • The unidirectional has less stress on the sides
  • Stress seems to be better distributed on the front and back panels with the weave