Calculating normal stress in a beam

AI Thread Summary
The discussion revolves around calculating normal stress in a beam, with a member sharing their calculations for verification. The area of the beam is calculated as 254.46 using the formula for the area of a circle. The center of gravity (CG) is determined to be 25 kN based on the cosine of an angle. The normal stress is calculated to be 98.25, but there is a reminder to include units in the final answer. Accurate unit representation is emphasized as crucial in engineering calculations.
clurt
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Hello

So I've done some calculations, I'd like to see if my stuff is right. Thanks :)

Please view attached http://i.imgur.com/AfMZyr0.jpg

area = (pi)(9^2) = 254.46

Cos53.13=15/CG
CG=25kN

Normal stress = 25000/254.46
=98.25
 

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You must train yourself to show units with your calculations. You show the normal stress as 98.25 what?
 

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