Table 4.
Free vibration frequency ω (rad/s) of GPL reinforced porous composite plate with different porous distributions and GPL distribution patterns.
| Boundary Conditions | Porosity A/GPL X | Porosity A/GPL U | Porosity A/GPL O | Uniform/GPL X | Uniform/GPL U | Uniform/GPL O | Porosity B/GPL X | Porosity B/GPL U | Porosity B/GPL O |
|---|---|---|---|---|---|---|---|---|---|
| SSSS | 102.35 | 93.54 | 86.27 | 100.91 | 92.19 | 85.13 | 98.38 | 89.84 | 83.17 |
| SSCC | 139.31 | 127.32 | 117.43 | 137.35 | 125.48 | 115.87 | 133.91 | 122.28 | 113.20 |
| SCCC | 163.01 | 148.98 | 137.40 | 160.71 | 146.82 | 135.58 | 156.69 | 143.09 | 132.46 |
| CCCC | 182.06 | 166.39 | 153.47 | 179.50 | 163.98 | 151.43 | 175.01 | 159.81 | 147.94 |