Table 2: Comparison of frequency parameter of FGM porous beam in thermal environment.
| | n=0.1 | n=0.2 | n=0.5 | n=1 |
| ΔT | | Ref. [6] | Present work | Ref. [6] | Present work | Ref. [6] | Present work | Ref. [6] | Present work |
| 20K | UTR | 4.6536 | 4.6053 | 4.3867 | 4.3514 | 3.8974 | 3.8767 | 3.5193 | 3.5046 |
| LTR | 4.7018 | 4.6598 | 4.4334 | 4.4089 | 3.9354 | 3.9384 | 3.5474 | 3.5678 |
| 40K | UTR | 4.4516 | 4.3944 | 4.1782 | 4.1350 | 3.6779 | 3.6510 | 3.2925 | 3.2726 |
| LTR | 4.6020 | 4.5603 | 4.3279 | 4.3093 | 3.8141 | 3.8380 | 3.4114 | 3.4659 |
| 80K | UTR | 4.0148 | 3.9377 | 3.7212 | 3.6610 | 3.1834 | 3.1441 | 2.7693 | 2.7399 |
| LTR | 4.3956 | 4.3546 | 4.1087 | 4.1031 | 3.5591 | 3.6292 | 3.1216 | 3.2531 |