HW3 - Aerospace Structural Composites I Homework#3 Anirban...

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Aerospace Structural Composites I Homework#3 Anirban Chaudhuri 1. Write a Matlab routine to calculate the A matrix of a laminate made from a single material with all plies having the same thickness. The input should consist of material properties (E 1 , E 2 , G 12 , and n 12 ), ply thickness (t), the number of plies (n), and ply angles. Test your routine by using Example 6.3.1 in Chapter 6. Solution: A MATLAB code is provided to evaluate the A-matrix. The main code takes in the input arguments of (material properties) E 1 , E 2 , G 12 , 12 , (thickness) t, (number of plies) n and ply angles. It calls a function that evaluates the A-matrix using the equations given below. 0 1 1 2 1 3 1 4 1 cos2 sin 2 cos4 sin 4 A n Ak k k n Akk k n k k n k Vh Vt … (1) where, h (total height) =n*t 12 3 11 3 0 22 43 1 12 53 2 66 3 23 16 4 26 00 0 0 1 0 2 1 0 2 A A A A A UU U A U V A V A V A V A V A        … (2) MATLAB Code:
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This note was uploaded on 06/06/2011 for the course EAS 4240 taught by Professor Peterifju during the Spring '08 term at University of Florida.

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HW3 - Aerospace Structural Composites I Homework#3 Anirban...

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