# Deformation Caused By Tightening A Nut

1. Sep 18, 2011

### NinjaGodel

1. The problem statement, all variables and given/known data

2. Relevant equations
$\delta$ = PL/AE

3. The attempt at a solution

As you can see I know that $F_{cd}$ is related to $F_{be}$
and a second relationship can be found by the geometry of the deformations.
I end up with $F_{cd}$ = $11.9^{kN}$ but the answer is supposed to be
9.73 kN.

I am unsure when it comes to finding the deformation in CD. I'm not sure if the deformation is expressed correctly. My reasoning is: tightening the bolt causes a 'positive' deformation and a 'negative' deformation comes from compressing the bolt.

Last edited: Sep 18, 2011