Four steel bars jointly support a mass of 25 x 103 kg. Initially the temperature is 250C. Bars A and D have a cross-sectional area of 480 mm2. For bars B and C, the cross-sectional area is 360 mm2. Determine the elongation of bar A when the temperature becomes 600C. Also, find the axial stress developed in bar C. Use E = 200 GPa and α = 11.7 x 10-6 m/ (m0C). (Please provide detailed solution with FBD thank you) δA = ? mm σC = ? MPa

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Strain energy

The term strain indicates the variation in an object's length, area, and volume when the object is subjected to an external force. The external force may be of normal, shear, moment, torque, etc. The strain in an object depends on the types of external force and cross-section of the object. Mathematically, the evaluation of strain can be obtained with the help of elastic constants.