EFFECT OF GENERAL IMPERFECTIONS ON BUCKLING OF CYLINDRICAL SHELLS
EFFECT OF GENERAL IMPERFECTIONS ON BUCKLING OF CYLINDRICAL SHELLS
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DOI：
10.1115/1.3564582
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发表时间：
1969-01-01
期刊：
影响因子：
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通讯作者：
BABCOCK, CD
中科院分区：
文献类型：
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作者：
ARBOCZ, J;BABCOCK, CD
本文对一般缺陷对圆柱壳轴压屈曲载荷的影响进行了实验和理论研究。非接触式探头已被用来进行全面的缺陷调查电铸铜壳之前和在加载过程中的屈曲载荷。数据记录过程已完全自动化，数据简化在IBM 7094上完成。三维绘图得到的测量初始缺陷表面和这些缺陷的增长下增加轴向载荷。得到了被测缺陷表面的模态分量。理论解确定了后屈曲状态的极限点。一个简化的缺陷模型，包括一个轴对称和两个非对称组件。对于整体屈曲，理论屈曲载荷和实验值之间的相关性被发现是好的。
An experimental and theoretical investigation of the effect of general imperfections on the buckling load of a circular cylindrical shell under axial compression was carried out. A noncontact probe has been used to make complete imperfection surveys on electro-formed copper shells before and during the loading process up to the buckling load. The data recording process has been fully automated and the data reduction was done on an IBM 7094. Three-dimensional plots were obtained of the measured initial imperfection surfaces and of the growth of these imperfections under increasing axial load. The modal components of the measured imperfection surfaces were also obtained. The theoretical solution located the limit points of the postbuckled states. A simplified imperfection model was used consisting of one axisymmetric and two asymmetric components. For global buckling the correlation between the theoretical buckling loads and the experimental values was found to be good.