- #1

raymanmusic

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## Homework Statement

How do I find an expression for the deflection at midspan of this beam? The beam is simply supported and there is two triangular loads on each side of the beam.

Illustration of problem: http://goo.gl/gk68Fl [Broken]

## Homework Equations

[itex]Deflection = \Delta = \int \frac{Mx*mx}{EI}[/itex]

Elastic curve equation of the simply supported beam for this case:

[itex]\delta = \frac{Qx}{960LEI}(5L^2-4x^2)^2[/itex]

## The Attempt at a Solution

I found Mx and mx, and I integrate from [itex]\frac{L}{2}[/itex] to [itex]L[/itex]. My answer is: [itex]\frac{QL^4}{120EI}[/itex].

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