3 Calculate the average stress in each rod AB and CD Aco 8 m

3. Calculate the average stress in each rod (AB and CD), Aco 8 mm2 and AAB 12 mm2 if the distance d 1 m 6 kN 3 m

Solution

Solution:-

R_A + R_C = 6

M_C = 0

R_A x 3 – 6 x2 = 0

R_A = 4 KN

R_C = 2 KN

Stress in rod AB = R_A/A_AB

= 4 x 1000/12 = 333.33 N/mm²

Stress in rod CD = R_C/A_CD

= 2 x 1000/8 = 250 N/mm²      Answer