
 ByconsideringtheinfinitesimalelementinFigure8.3,assumingsmallanglesθ,andconsideringmomentequilibriumabouttheleftend:Furtherbyconsideringequilibriuminzdirection:Figure8.3InfinitesimalpipeelementByintroducingthatM=-EI(d2w)/(dx2),whereEIisthebendingstiffness (共 4255 字) [阅读本文] >>


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