Research Article
Vibration Properties of a Steel-PMMA Composite Beam
Table 2
Performance parameters of materials.
| Material name | Density () Kg/m3 | Modulus () (pa) | Poisson’s ratio | Lame coefficients (pa) | Lame coefficients (pa) |
| Steel | 7840 | 2.16 × 1011 | 0.28 | 1.002 × 1010 | 8.29 × 1011 | PMMA | 1300 | 1.37 × 105 | 0.47 | 3.87 × 109 | 1.2 × 109 | Aluminum | 2799 | 7.21 × 1010 | 0.344 | 5.43 × 1010 | 2.56 × 1010 | Epoxy | 1142 | 2.9 × 109 | 0.378 | 3.2602 × 109 | 1.1328 × 109 |
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