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Thread: Free-body diagram for beam element. (partial derivatives)

  1. #1

    Free-body diagram for beam element. (partial derivatives)

    Hi, could anyone explain me where do forces correlated with partial derivatives come from? (marked with a red circle in the figure). What is the formula to prove it?
    Thanks
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  2. #2
    Administrator
    Join Date
    Feb 2011
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    88
    Looks like homework, at the least exclusively academic.

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