Q2: A composite beam cross section shown in figure. The normal strain at point (A) due to bending about the z axis was found to be (0.0004). The modulus of elasticity of the two materials are El-10...

Extracted text: Q2: A composite beam cross section shown in figure. The normal strain at point (A) due to bending about the z axis was found to be (0.0004). The modulus of elasticity of the two materials are El-10 GPa and E2- 70 GPa, determine: (1) the maximum bending stress in each material. (2) the moment of resistance of the section. 30mm A E2 E1 140mm 30mm 十 十十 35mm 30mm 35mm