(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

I think I've solved this properly, but if you guys wouldn't mind verifying my work and pointing out any errors (if there are any), it would be much appreciated.

http://img391.imageshack.us/img391/6520/problemvm0.jpg [Broken]

I've already calculated the equivalent force-couple system at the plane of the elemental stress block, which is shown above. That's completely right, I know of it :). Now, I need to solve for the components of normal and shearing stress associated with that elemental stress block.

2. Relevant equations

[tex]\sigma[/tex]_{Axial}= P / A

[tex]\sigma[/tex]_{Bending}= Mc / I

[tex]\tau[/tex]_{Shear}= VQ / IT

[tex]\tau[/tex]_{Torque}= Tc / J

We already are given:

A = 12.57 in^2

J = 25.13 in^4

I = 12.57 in^2

Q = 5.33 in^3

D = 4 in

3. The attempt at a solution

Using the equations above, I've calculated:

[tex]\sigma[/tex]_{Axial}= 477.46 psi

[tex]\sigma[/tex]_{Bending}= 12,414.09 psi

[tex]\tau[/tex]_{Shear}= 106.10 psi

[tex]\tau[/tex]_{Torque}= 5729.58 psi

Did this all with excel :).

Do those answers sound right? The next step which I am having difficulty with is calculating the [tex]\sigma[/tex]_{X}, [tex]\sigma[/tex]_{Y}, and [tex]\tau[/tex]_{XY}. I understand that I'm just using super position for this, but I'm not sure whether to add or subtract the two.

Thanks!

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# Homework Help: Need Verification: Combined Loads Finding Stress

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