The 2000 mm long composite bar shown in Figure 1.46 consists of an aluminum bar having a modulus of elasticity EAl = 70 GPa and length LAl = 500 mm, which is securely fastened to a steel bar having...

The 2000 mm long composite bar shown in Figure 1.46 consists of an aluminum bar having a modulus of elasticity EAl = 70 GPa and length LAl = 500 mm, which is securely fastened to a steel bar having modulus of elasticity ESt = 210 GPa and length LSt = 1500 mm. After the force P is applied, a tensile normal strain of εAL = 1000 × 10−6 is measured in the aluminum bar. Find the tensile normal stress in each bar and the total elongation of the composite bar.