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Table 12 ASTER VM22 shell buckling under combined loading: calculated ratios under various modeling assumptions

From: ASTER Shell: a simple concept to significantly increase the plastic buckling strength of short cylinders subjected to combined external pressure and axial compression

Pressure load ratio Axial load ratio \(\Lambda _{E}\) \(\Lambda _{NL}\) \(\Lambda _{NLP}\)
0.0 1.0 1.60 0.95 0.84
0.1 0.9 1.79 1.65 1.29
0.2 0.8 2.03 1.80 1.36
0.3 0.7 2.33 1.98 1.45
0.4 0.6 2.75 2.27 1.57
0.5 0.5 2.95 2.48 1.74
0.6 0.4 3.06 2.83 1.95
0.7 0.3 3.12 3.31 2.23
0.8 0.2 3.16 3.92 2.60
0.9 0.1 3.29 5.00 3.08
1.0 0.0 3.31 5.95 4.01