A bar made up of two square sections , one of steel and the other of aluminium is shown in Fig.2 The bar is acted upon by a compressive force P. Determine the value of P if the total decrease in...

A bar made up of two square sections , one of steel and the other of aluminium is shown in Fig.2 The bar is acted upon by a compressive force P. Determine the value of P if the total decrease in length of the bar is 0.3 mm . Take Esteel = 205 GPa and Ealuminium = 75 GPa .

Extracted text: Steel 30 x 30 Aluminium 60 x 60 (mm) 600-