THE EFFECT OF INITIAL IMPERFECTIONS ON THE COLLAPSE STRENGTH OF DEEP SPHERICAL SHELLS
THE EFFECT OF INITIAL IMPERFECTIONS ON THE COLLAPSE STRENGTH OF DEEP SPHERICAL SHELLS
复制标题
初始缺陷对深球壳抗挤强度的影响
DOI：
10.21236/ad0612100
复制
发表时间：
1965
期刊：
影响因子：
5.5
通讯作者：
T. Kiernan
中科院分区：
文献类型：
--
作者：
M. Krenzke;T. Kiernan
摘要：进行了一种分析，以解释缺陷对球壳抗压强度的影响。该分析是经验性的，但基于对近乎完美的深球壳和球盖的最新测试的工程评估。 62 个模型加工有局部薄点和平点，并承受外部静水压力。尽管选择测试分析的缺陷很严重，但该分析与实验结果非常一致。讨论了分析的局限性，并给出了显示不圆度和局部半径之间关系的曲线，以帮助设计工程师建立球壳制造的可接受的公差极限。
Abstract : An analysis is developed to account for the effects of imperfections on the collapse strength of spherical shells. The analysis is empirical but is based on an engineering evaluation of recent tests of near-perfect deep spherical shells and spherical caps. Sixty-two models were machined with local thin spots and flat spots and subjected to external hydrostatic pressure. The analysis is in good agreement with experimental results despite the severity of imperfections selected to test the analysis. The limitations of the analysis are discussed and curves showing the relationship between out of roundness and local radius are presented to aid the design engineer in establishing acceptable tolerance limits for fabrication of spherical shells.