The assembly consists of two AD and CF made of steel and having a square cross-sectional area of, 950 mm2 and aluminum post BE having a square cross-sectional area of 1600 mm2.If a central load of 380 kN is applied to the rigid cap, There is a small gap of 0.1 mm between the post BE and the rigid member ABC.

Determine the normal stress in the post AD.

Determine the normal stress in the post CF.

Determine the normal stress in the post BE.  

 

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-0.5 m- -0.5 m- A B C 0.4 m D E -0.5 m- -0.5 m- A B C 0.4 m D E