Question

Just part c please

Problem 1 GIVEN 4okum loomm comm 2.m The member shown above has a W-shape cross section. FIND a) Draw the shear, moment and normal force diagram. b) Determine the absolute maximum bending stress in the beam and draw the stress distribution over the cross section at this location. o) Draw the transverse shear stress distribution over the cross section just to the right of point B. d) Determine the state of stress that the loading produces at point E and point F. (Assume point E in the web) Draw the Mohr's circle for state of stress at point E For point E, determine the prineipal stresses and maximum in - plane shear stress. O

Answer 1

sigma M_A = 0 V_o times 6 - 2.5 times 40 times cos theta times 5 - 40 times 2.5 times sin theta v 1.5/2 - 80 items 2 = 0 V_D = 100.83 Kn uparrow shear force just to the right of B V = 100.83 - 410 times 2.5 times cos 36.87 V = 20.83 kn shear stress Distribution tau_c = VAJ^-/IB = 20.83 times 10^3 times [250 times 20 times 110 + 100 times 20 times 50]/1346666667 times 20 = 5.02 N/mm^2 I = [250 times 240^3/12 - 230 times 200^3/12] = 134666666.7 mm^4 tau_B^1 = 20.83 times 10^3[20 times 250 times 110]/134666666.7 times 250 = 0.34 N/mm^2 tau^11_B = tau_B^1 times 250/20 = 4.25 N/mm^2