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Table 8 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 \(\Lambda _{E}\) \(\Lambda _{NL}\) \(\Lambda _{NLP}\) \(\Lambda _{\delta\;=\;0.01}\) \(\Lambda _{\delta\;=\;0.1}\)
0.0 1.0 1.00 0.994 0.756 0.724 0.71
0.2 0.8 1.17 1.171 0.944 0.960 0.895
0.4 0.6 1.18 1.186 1.186 1.161 1.06
0.6 0.4 1.14 1.146 1.146 1.107 1.102
0.8 0.2 1.07 1.078 1.078 1.042 0.97
1.0 0.0 1.00 1.01 1.01 0.99 0.92