Recent content by Dzxcny

Calc of s2, s3 and s6. The first picture i posted is calc for s4 and final value. Any idea how to do shear centre?

Flow diagram and calculation of s1

Working out of ixx

I finished with this, look similar to what you got?

No problem

Cheers, i think you have your x and the y mixed up at the end. You have -3.09x + 2.475y when it should be -3.09y + 2.475x according to the equation?

Can you stick a pic of your solution up please. I completely missed the positive couple part in the question so can see where the positive mx comes from but now i now get -117.879 - 34.1061 = -151.99! Absolute nightmare haha. Haha no idea, think everyone is stumped with that one.

Heres my solution.

Are you sure about your final stress value? I get 151.9855 N/mm^2 every time. I've tried using hand calculations as well as using excel to double check the values and get that everytime.

Actually think i understand it. X = Xc - bredth of rectangle 1 Y = height of rectangle 1 - Yc That how you got them?

How did you get them? Did you draw it out or is there a way to calculate them?

When calculating the maximum stress did you use the unsymmetric bending equation? If you did what did you use as your x and y co-ordinates to input in that equation?

I got this except the Ixy was plus 1143476. Is this what you got when you did it again?