Research Article
Numerical Derivation of Buckling Knockdown Factors for Isogrid-Stiffened Cylinders with Various Shell Thickness Ratios
Table 3
Properties of the equivalent models for the isogrid-stiffened cylinders with various shell thickness ratios.
| Thickness ratio, () | 536 (441) | 356 (300) | 244 (200) | 122 (100) |
| Radius, (m) | 2.250 | 1.530 | 1.020 | 0.510 | Length, (m) | 2.200 | 1.500 | 1.000 | 0.500 | Length of resin ring, (m) | 0.083 | 0.056 | 0.035 | 0.019 | Thickness of weld land, (m) | 0.007 | Equivalent thickness, (m) | 0.0051 | Equivalent elastic modulus, (GPa) | 58.35 | Poisson’s ratio, | 0.33 |
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