Table 1 Maximum values of effective stress, deflection and impact load with various velocities and angles
From: Safety Assessment of Aircraft Fuel Tank Access Cover under the Impact Load by Tire Fragments
Impact angle (°) | Fragment velocity (m/s) | ||||||
|---|---|---|---|---|---|---|---|
20 | 40 | 60 | 80 | 100 | 135 | ||
Effective stress (MPa) | 30 | 95 | 198.9 | 272 | 339.7 | 388 | 438.2 |
50 | 102 | 209 | 283 | 350 | 401 | 462 | |
70 | 112 | 228 | 302 | 363 | 420 | 475 | |
90 | 122 | 237 | 313 | 378 | 428 | 488 | |
Deflection (mm) | 30 | 2.58 | 3.29 | 3.91 | 4.19 | 4.4 | 4.61 |
50 | 2.7 | 3.79 | 4.5 | 5.1 | 5.56 | 5.93 | |
70 | 2.9 | 4.15 | 5.15 | 6.06 | 6.87 | 7.98 | |
90 | 3.05 | 4.48 | 5.6 | 6.68 | 7.58 | 8.95 | |
Impact load (N) | 30 | 1160 | 1387 | 2688 | 3990 | 4812 | 5638 |
50 | 1230 | 1691 | 3345 | 4780 | 6005 | 7610 | |
70 | 1320 | 2150 | 3965 | 5780 | 7340 | 9500 | |
90 | 1550 | 2852 | 4810 | 6808 | 8632 | 11205 | |