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Shear flow at shear center

  1. Jan 2, 2017 #1
    In the figure , we can notice that the moment due to Pe is counterclokwise , but moment due to shear flow is also counterclockwise , How can the Pe prevent the twisting of the beam ?

    Or is the direction of the shear flow wrong ? Should it flow from the below to the top ?

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  2. jcsd
  3. Jan 3, 2017 #2


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    From how I read it: ##P\times e## is the resultant of the shear flow and gives you a distance ##e##, the distance (on the other side of the web!) at which you can apply the actual load that offsets ##P\times e##, thus causing a minimum of twist.
  4. Jan 3, 2017 #3
    why ? P is the applied force , and F is the resultant force of shear flow, right ?
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