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Example 5.5: laminate
Solution: This is a general laminate and does not follow in any category of classification. Hence, we can call it as an unsymmteric laminate. Further, in this laminate there are two layers of and 3 layers of fibre orientation. Since, thickness of each layer is 1 mm, we can consider this laminate as one layer of fibre orientation with thickness of 2 mm and one layer of fibre orientation with thickness of 3 mm. This is shown in Figure 5.11.
Here, . and are the same as in earlier examples.
A matrix is calculated as
This gives us
Matrix B is calculated as
Thus,
Now matrix D is calculated as
which gives,
Figure 5.11: Example problem 5.5, (a) Actual laminate (b) Equivalent laminate
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