Figure Q1(b) shows three rods that were assembled together and held between rigid supports. The material properties of each material are given in Table Q1(b). Suppose the initial temperature is T1 =...

Q1B

Extracted text: Figure Q1(b) shows three rods that were assembled together and held between rigid supports. The material properties of each material are given in Table Q1(b). Suppose the initial temperature is T1 = 2x °C. The temperature then raised up and reaches T2 = 7y oC, Parameter x and y are given by X=0 Y=0 i) Calculate the average normal stress in each material when the temperature reaches T2. ii) Determine the corresponding displacement at point A. Brass Copper Steel |A |B .600 mm .400 mm 200 mm Figure Q1(b) Table Q1(b) Steel Brass Сopper 120 GPa E 200GPA 100 GPa 12×10-/ °C 21×10/ °C 17×10/ °C a d 16mm 24 mm 26 mm