Recent content by songtoan92

I 've got it, thank you for your help :D

So,... I1 (of the outer rectangular) = 1 / 12 * 0.1 * 0.14 ^ 3 + 0.1 * 0.14 * 0.05 ^ 2 I2 (of the inner rectangular) = 1 / 12 * 0.06 * 0.04 ^ 3 + 0.04 * 0.06 * 0.05 ^ 2 and the I final = I1 - 2I2 ~ 4.5 * 10E-05 is that right ??

Can you explain me more ?? I am a little bit confused now Personally , I think , " I " is the 2nd moment of area, so considering the " H " cross-section of the beam I got I =... I think it does not a matter of moment of parallel axis theorem here ?

bending stress in beam, help me ! Homework Statement Homework Equations singularity function bending stress (max) = { (M max)/I } * ( a/2) The Attempt at a Solution after writing the singularity function, and compute reactions force I found that the maximum bending moment should be 12.04...