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# Table 7 Imperfect cylinders: experimental and calculated buckling loads

External pressure | A1 | A2 | A3 | A4 |
---|---|---|---|---|

\(\frac{P_{exp}}{P_{NLP}}\) | 0.991 | 0.920 | 0.900 | 0.982 |

\(\frac{P_{exp}}{P_{NLPCOMU}} ; \frac{\delta }{h}=0.01\) | 0.986 | 0.879 | 0.920 | 1.00 |

\(\frac{P_{exp}}{P_{NLPCOMU}} ; \frac{\delta }{h}=0.1\) | 1.06 | 0.937 | 0.985 | 1.069 |

\(\frac{P_{exp}}{P_{NLPCOMU}} ; \frac{\delta }{h}=0.2\) | 1.15 | 0.994 | 1.04 | 1.129 |

Axial compression | A5 | A6 |
---|---|---|

\(\frac{F_{exp}}{P_{NLP}}\) | 1.01 | 0.919 |

\(\frac{F_{exp}}{F_{NLPCOMU}} ; \frac{\delta }{h}=0.01\) | 1.076 | 0.922 |

\(\frac{F_{exp}}{F_{NLPCOMU}} ; \frac{\delta }{h}=0.1\) | 1.080 | 0.988 |

\(\frac{F_{exp}}{F_{NLPCOMU}} ; \frac{\delta }{h}=0.2\) | 1.087 | 0.996 |