Table 2 ASTER VM22 shells: characteristics and experimental buckling loads
External pressure | B1 | B2 | B3* | B4* |
|---|---|---|---|---|
h (\(\mu m\)) | 152 | 155 | 150 | 150 |
R/h | 493 | 484 | 500 | 500 |
E (GPa) | 147 | 161 | 164 | 167.5 |
\(P_{exp}\) Buckling pressure (MPa) | 0.091 | 0.092 | 0.070 | 0.072 |
\(P_{E}\) (MPa) | 0.0190 | 0.0230 | 0.0216 | 0.0220 |
\(\frac{P_{exp}}{P_{E}}\) | 4.57 | 4.00 | 3.24 | 3.27 |
Axial compression | B5 | B6 |
|---|---|---|
h (\(\upmu \text{m}\)) | 153 | 150 |
R/h | 490 | 500 |
E (GPa) | 162 | 163 |
\(F_{exp}\) Buckling Load (N) | 14,400 | 13,200 |
\(F_{E}\) (N) | 14,200 | 14,067 |
\(\frac{F_{exp}}{F_{E}}\) | 1.01 | 0.94 |