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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 0 degrees
  2. Unidirectional Prepreg 90 degrees
  3. 5/8" Honeycomb Core
  4. Unidirectional Prepreg 90 degrees
  5. Unidirectional Prepreg 0 degrees

Stackup 2

  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

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

Workbench Setup

Static Structural Setup

  1. Fixed point at the center of the catamaran
  2. 10000N of downwards force on the front driver side corner and the rear passenger side corner
  3. 10000N of upwards force on rear driver side corner and the front passenger side corner


Here are the results (The colors correspond to different values in stackup 1 vs stackup 2)

Stackup 1

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



Stackup 2

  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






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