Elastic curve equation - Shear force

Q.  Which of the following is an elastic curve equation for shear force?
(EI = flexural rigidity)

- Published on 21 Sep 15

a. S = EI (dy/dx)
b. S = EI (d2y /dx2)
c. S = EI (d3y / dx3)
d. S = EI (d4y/ dx4)

ANSWER: S = EI (d3y / dx3)


  • Barun Kumar   -Posted on 09 Feb 21
  • gokulnavale   -Posted on 25 Feb 16
    it is best for online exam
  • Sravanthi   -Posted on 24 Nov 15
    Different equations of elastic curves are:

    1) Elastic curve equation for shear force (S) = EI (d3y / dx3)

    2) Elastic curve equation for rate of loading (W) = EI (d4y / dx4)

    3) Elastic curve equation for bending moment (M) = EI (d2y / dx2)

    4) Elastic curve equation for deflection of beam = EIy

    5) Slope of elastic curve (θ) = EI (dy / dx)

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