Corrections for Lengths of Columns Tested Between Knife Edges
Corrections for Lengths of Columns Tested Between Knife Edges
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DOI：
10.2514/8.11173
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发表时间：
1944-10
期刊：
影响因子：
--
通讯作者：
W. Osgood
中科院分区：
文献类型：
--
作者：
W. Osgood
通常情况下，当在刀刃之间测试的柱支撑在刀刃和柱端部之间的载体上时，柱的长度被视为刀刃之间的距离。当这样做时，如果柱试样相对于刀刃之间的距离较长，则仅引入较小的误差，但B t对于短柱，误差可能达到百分之几。在偏心荷载作用下进行的试验中，当需要获得与一系列恒定偏心度相对应的柱曲线时，有两种实用的方法可以避免这种误差。
MORE OFTEN THAN NOT when a column tested between knife edges is supported on carriers between the knife edges and the ends of the column, the length of the column is taken as the distance between knife edges. When this is done, only a small error is introduced if the column specimen is long relative to the distance between knife edges, b u t the error may amount to several per cent for short columns. There are two practical ways of avoiding this error in tests made under eccentrically applied loads when it is desired to obtain column curves corresponding to a series of cons tan t eccentricities.