Research Article
Crack Detection in Plate-Like Structures Using Modal Strain Energy Method considering Various Boundary Conditions
Table 3
Variation of natural frequencies due to crack.
| | Mode | Case 1 | Case 2 | Case 3 | | Uncracked (Hz) | Cracked (Hz) | Change (%) | Uncracked (Hz) | Cracked (Hz) | Change (%) | Uncracked (Hz) | Cracked (Hz) | Change (%) |
| | 1 | 112.36 | 112.24 | 0.11 | 168.16 | 168.02 | 0.08 | 308.53 | 308.47 | 0.02 | | 2 | 164.92 | 164.72 | 0.12 | 422.97 | 422.12 | 0.20 | 633.06 | 632.18 | 0.14 | | 3 | 209.25 | 209.02 | 0.11 | 422.97 | 422.74 | 0.05 | 633.06 | 632.70 | 0.06 | | 4 | 292.26 | 291.35 | 0.31 | 675.48 | 674.72 | 0.11 | 932.69 | 931.50 | 0.13 |
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