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Why shearforce diagram and bending moment diagram become curve shape?
Wiki User
∙ 12y ago
They don't always become a curved shape.
A SFD will only become a curved shape if you have a distributed load that is changing over time.
A BMD will only become a curved shape if the related shear force diagram is changing over time (not a flat line)
however because the SFD is the integral of the force applied and the BMD is the integral of the SFD, generally as you keep going to a higher order, you will start getting more curvy lines.
Wiki User
∙ 12y ago
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the shear force diagram and the bending moment diagram are two separate diagrams each depicting their respective quantities.shear force and bending moment diagrams are extremely important as these two diagrams give what is needed of the beam that is to be designed. the procedure of sectioning the beam and finding the system of forces at the section is the most fundamental approach. for example the bending moment diagram can show at one glimpse the point of beam which is going to experience the maximum loading conditions and this point can be selected as the minimum requirement of the beam.
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