Mechanics of Materials - is this correct?

[niece of md.]

Homework Statement

Homework Equations

The Attempt at a Solution

I was attempting to solve this exercise, but since I have no answers, I have no way of knowing if it's correct.

Any help Is more than appreciated

 

[PhanthomJay]

You did a superior job with this and your work is well presented.. the lowest value of P is the answer. Excellent work!

 

[SolidElast]

All the best! There is my verification
http://img821.imageshack.us/img821/8128/tophysicsforum02.png

 

[SolidElast]

By the way Elongations (z - from left to right within each segment)
$w_{{1}}=4\,{\frac {Pz}{E\pi \,{{\it Diam}}^{2}}}$

$w_{{2}}=4\,{\frac {P \left( z{{\it Diam}}^{2}+a{{\it diam}}^{2} \right) }{{{\it Diam}}^{2}E\pi \,{{\it diam}}^{2}}}$

 

[asteriatic]

!


I cannot determine if your solution is correct without seeing the actual exercise and your attempt at solving it. However, in general, the mechanics of materials involves the study of how materials behave under different types of loading and how they can withstand and resist these loads. This field is essential in many engineering applications, such as designing structures and machines, as it helps us understand the limits and capabilities of different materials. It is also important in understanding the failure mechanisms of materials, which can lead to improvements in design and manufacturing processes. To ensure the accuracy of your solution, it is important to refer to established equations and principles in the field of mechanics of materials. Additionally, seeking feedback from a knowledgeable instructor or peer can also help verify the correctness of your solution.