1910–1911
Britannica 11th
Encyclopaedia Britannica · 11th edition
IT V (EI/W) it will not bend under the force, but when the length is great enough there may be more than two points of inflection and more than one bay of the curve; for n bays (n + l inflections) the length must exceed nirV(EI/W). Some of the forms of the curve are shown in fig. 24. For the form d, in which two bays make a figure of eight, we have LV(W/EI)=4-6, 0 = 130° approximately. It is noteworthy that whenever the length and force admit of a sinuous form, such as a or 6, with more than two inflections, there …
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- Vol. 9, pp. 152-152