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Unformatted text preview: (4) In which fk is the bar force in a member caused by a virtual unit load and Fk is the bar force in the same member due to the external forces. Euler Buckling load for Linear Elastic Bars Consider an ideal straight, prismatic bar composed of a linearly elastic material and subjected to an axial compressive load as shown in Figure 4. Figure 4. Pinned Bar under Compressive Load If the bar is ideal, then it will remain straight under all levels of load P . Suppose that the bar is subjected to a slight lateral disturbance as the load is increased from zero. For low levels of axial load, when the disturbance...
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This document was uploaded on 03/11/2014.

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