Q2 Three bars each made of different materials are connected together and placed between two walls when the temperature is 12°C. Determine the force exerted on the (rigid) supports when the temperature becomes 18°C. The material properties and cross-sectional area of each bar are given in the figure. Steel Brass Copper Ecu = 120 GPa ag = 12(10-)/C ar = 21(10-)/"C au = 17(10)/"C Acu = 515 mm? E = 200 GPa E = 100 GPa %3D |4= 200 mm? Ar = 450 mm? 300 mm- 200 mm 100 mm

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Buckling of columns

The column is described as a vertical member of the structure that carries an axial compressive load, and buckling is a lateral deformation of the column under the application of load.