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首页> 外文期刊>International Journal of Pressure Vessels and Piping >Buckling and strength of an externally pressurized spherical shell with reinforced opening
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Buckling and strength of an externally pressurized spherical shell with reinforced opening

机译：具有加强开口外部加压球形壳体的屈曲和强度

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摘要

This paper focuses on two opening reinforcement methods of spherical shells under uniform external pressure. To reduce the local weakening and buckling effects of openings in spherical shells, designs comprising the wall reinforcement and the combination of a wall and thick plate reinforcement were employed to minimize buckling instability. In addition, the equal-proportion models of two kinds of reinforcement methods were manufactured and tested. The geometry, thickness, buckling load, and final collapsed mode were measured for each spherical shell with opening reinforcement. The paper contains a comparison between theoretical predictions, numerical analysis results and experimental data for two reinforced spherical shells. The theoretical and numerical results were in good agreement. The numerical solution result, obtained by considering the real defect, was consistent with the experimental result, and the failure mode was consistent with the location of the defect.
机译：本文侧重于均匀外压下的球形壳的两种开放方法。 为了减少球形壳体中的开口的局部弱化和屈曲效果，采用包括壁加强件和壁和厚板增强件的组合的设计来最小化屈曲不稳定性。 此外，制造和测试了两种增强方法的平等比例模型。 测量各个球形壳体的几何，厚度，屈曲负荷和最终折叠模式。 本文含有两个钢筋球形壳的理论预测，数值分析结果和实验数据之间的比较。 理论和数值结果非常一致。 通过考虑实际缺陷而获得的数值溶液结果与实验结果一致，故障模式与缺陷的位置一致。

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