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  3. problem 1 the tables of beam deflection report the following...

Question: problem 1 the tables of beam deflection report the following...

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Problem 1. The tables of beam deflection report the following expression for the elastic line of a fixed-fixed beam with end displacement: Fixed-fixed Beam with End Displacement w(x) = (31x2-2x3) 12EI w(x) 77 (a) Derive the equation of the elastic line reported above by integrating the fourth order differential equation of the beam El w)(x). Hint: How much is the distributed load? How much is the shear force on the beam? Use the boundary conditions on deflection and rotation at the fixed ends (b) Determine the stiffness k of this beam such that, denoting with w(I) the deflection of the end at x-, then P - ks.

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