None Q1. A rod is composed of three segments as sh in Figure T. If the axial loads P1 and Pa arecach 50 kN, compute the stress induced i1 cach materia) by a temperature drops of 60°C:s the walls spring together by_0.3 mm. Assume that a=18.9 x 10/°C for bronze,a=23.0 x 10/C for aluminum, and a=11.7 x 10/°C for steel800 mm500 mm400 mmPiFigure 1AluminumSteelA=600 mmE=200 GPaBronzeA=2400 mm3a(0r)+ A)K-EL E-83 GPavA=1200 mm?E=70 GPaAF

a=23.0 x 10°C for aluminum, and a-11.7 x 10/C for steel. Q1. A rod is composed of three segments as shOwn in Figure 1. If the axial loads P, and P. ar cach 50 kN, compute the stress induced 11 cach materia) by a temperature drops of 60°C AT :s the walls spring together by_0.3 mm. Asume that a=18.9 x 10/C for bronze. 800 mm 500 mm 400 mm Figure 1 Aluminum A=1200 mm? E=70 GPa (F Bronze Steel alor) A)< A=2400 mm3 FL E=83 GPav) A=600 mm? E=200 GPa AR