Table 4 Ply properties for different layers used in the sequences.
Properties | AA6061-T6 | Aramid-epoxy | UHMWPE-epoxy | Paperboard-epoxy | Epoxy interply |
|---|---|---|---|---|---|
Density (\(kg/m^3\)) | 2760 | 1380 | 1210 | 1250 | 1186 |
\(E_{1}\) (GPa) | 69 | 13.7 | 3.23 | 3.95 | 3.01 |
\(E_{2}\) (GPa) | 69 | 13.7 | 3.24 | 3.86 | 3.01 |
\(E_{3}\) (GPa) | 69 | 4.96 | 3.01 | 4.06 | 3.01 |
\(\nu _{12}\) (GPa) | 0.33 | 0.52 | 0.37 | 0.304 | 0.35 |
\(\nu _{23}\) (GPa) | 0.33 | 0.263 | 0.41 | 0.197 | 0.35 |
\(\nu _{31}\) (GPa) | 0.33 | 0.263 | 0.37 | 0.226 | 0.35 |
\(G_{12}\) (GPa) | 25.9 | 4.84 | 1.1 | 1.51 | 1.40 |
\(G_{23}\) (GPa) | 25.9 | 2.91 | 1.07 | 1.50 | 1.40 |
\(G_{31}\) (GPa) | 25.9 | 2.91 | 1.09 | 1.57 | 1.40 |
