How was the max deflection formula derived?

In summary, the max deflection formula is an equation derived by Joseph Louis Lagrange in the 18th century to calculate the maximum deflection or displacement of a beam or structure. It is based on the assumptions of linear-elastic behavior, small deflections, and constant cross-sectional area. The formula was derived using principles of calculus and mechanics and is based on the Euler-Bernoulli beam theory. While its accuracy may vary depending on the complexity of the beam, it is a useful tool for estimating and designing structures.
  • #1
Amy54
12
0
does anyone know how the formula for calculating max deflection was derived? The formula is (Force x Length^3)/(48 x E x I). I think it was through intergration but if anyone knows more could you please let me know? thanks! :)
 
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  • #2
Thread moved to Homework Help.

Can you be more specific? Max deflection of what? What is the application?
 
  • #3
sorry.. the max deflection formula for a simply supported beam... :)
 

1. What is the max deflection formula?

The max deflection formula is an equation used to calculate the maximum deflection or displacement of a beam or structure under a load. It takes into account the material properties, geometry of the beam, and the applied load.

2. Who derived the max deflection formula?

The max deflection formula was derived by French mathematician and physicist, Joseph Louis Lagrange, in the 18th century. It was later refined and expanded upon by other scientists and engineers.

3. What are the assumptions made in deriving the max deflection formula?

The max deflection formula is based on the assumptions of linear-elastic behavior of the material, small deflections, and a constant cross-sectional area throughout the length of the beam.

4. How was the max deflection formula derived?

The max deflection formula was derived using principles of calculus and mechanics, specifically the Euler-Bernoulli beam theory. This theory states that a beam will deform under a load due to bending moments and shear forces, and the resulting deflection can be calculated using the max deflection formula.

5. How accurate is the max deflection formula?

The accuracy of the max deflection formula depends on the assumptions made and the complexity of the beam's geometry. In some cases, it may not accurately predict the actual deflection, but it is a useful tool for estimating and designing structures.

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