Classify the following laminates 3045 4530 30303030 303030

Classify the following laminates: [-30/45 / -45/-30] [-30/30/-30/30] [30/-30/30] [45 /30/-30/-45] [0/90/0/90/0/90/90] [0/90/90/90/90/0] [0/18/36/54/72/90/-18/-36/-54/-72]

Solution

1

[-30/45/-45/-30] is a total laminate

2

[-30/30/-30/30] is a balanced angle ply laminate

3

[30/-30/30] is a symmetric angle ply laminate

4

[45/30/-30/-45] is an anti symmetric laminate

5

[0/90/0/90/0/90/90] is a cross ply laminate

6

[0/90/90/90/90/0] is a symmetric cross ply laminate

7

[0/18/36/54/72/90/-18/-36/-54/-72] is a quasi isotropic laminate