Table 1 Properties of materials used in Glare
Property | Aluminum 2014-T6 alloy (al) | E-glass fiber (f) | Epoxy resin (r) |
|---|---|---|---|
Modulus of elasticity (E), MPa | 72,000.0 | 71,000.0 | 3,500.0 |
Shear modulus (μ), MPa | 27,060.0 | 29,700.0 | 1,250.0 |
Poisson's ratio (υ) | 0.33 | 0.22* | 0.33 |
Yield strength (Y), MPa | 372.0 | - | - |
Ultimate tensile strength, MPa | 415.0 | 3,450.0 | 60 |
Percent elongation | 8.0 | 4.8 | 4.0 |
Coefficient of thermal expansion (α), C−1 | 23 × 10− 6 | 5.0 × 10− 6 | 57.5 × 10− 6 |
Density, g/cc | 2.71 | 2.45 | 1.54 |
Plane strain fracture toughness (KIC), \( \mathrm{MPa}\sqrt{\mathrm{m}} \) | 14.0 to 20.0 | 4.0 to 5.0 | 0.5 to 0.7 |