MecMovies 4.0 : M15.3: Principal Stresses in a Rectangular Tube Beam

scene 5 of 14

Constructing the shear diagram

Considering the segment
from $x = 2 m$ to $x = 3 m$

     area under load
                diagram $= - 2.00 k N$
         concentrated
                   forces $= 0.00 k N$
     total shear force
                  change $= - 2.00 k N$

         at $x = 2 m$ ,    $V = + 10.00 k N$
     total shear force
                 change         $= - 2.00 k N$
           at $x = 2 m,$ $V = + 8.00 k N$