Question

PROBLEMS 300 mm 25 mm Brass core E = 105 GPa Aluminium shell E = 70 GPa 2.33 An axial force of 200 kN is applied to the assembly shown by means of rigid end plates. Determine (a) the normal stress in the alumi- num shell, (b) the corresponding deformation of the assembly. 2.34 The length of the assembly shown decreases by 0.40 mm when an axial force is applied by means of rigid end plates. Determine (a) the magnitude of the applied force, (b) the corresponding stress in the brass core. 2.35 A 4-ft concrete post is reinforced with four steel bars, each with a $frac{3}{4}$-in. diameter. Knowing that $E_s = 29 imes 10^6$ psi and $E_c = 3.6 imes 10^6$ psi, determine the normal stresses in the steel and in the concrete when a 150-kip axial centric force P is applied to the post. P 60 mm Fig. P2.33 and P2.34 4 ft

          PROBLEMS
300 mm
25 mm
Brass core
E = 105 GPa
Aluminium shell
E = 70 GPa
2.33 An axial force of 200 kN is applied to the assembly shown by means
of rigid end plates. Determine (a) the normal stress in the alumi-
num shell, (b) the corresponding deformation of the assembly.
2.34 The length of the assembly shown decreases by 0.40 mm when an
axial force is applied by means of rigid end plates. Determine
(a) the magnitude of the applied force, (b) the corresponding stress
in the brass core.
2.35 A 4-ft concrete post is reinforced with four steel bars, each with a $frac{3}{4}$-in.
diameter. Knowing that $E_s = 29 	imes 10^6$ psi and $E_c = 3.6 	imes 10^6$ psi,
determine the normal stresses in the steel and in the concrete when
a 150-kip axial centric force P is applied to the post.
P
60 mm
Fig. P2.33 and P2.34
4 ft

$PROBLEMS 300 mm 25 mm Brass core E = 105 GPa Aluminium shell E = 70 GPa 2.33 An axial force of 200 kN is applied to the assembly shown by means of rigid end plates. Determine (a) the normal stress in the alumi- num shell, (b) the corresponding deformation of the assembly. 2.34 The length of the assembly shown decreases by 0.40 mm when an axial force is applied by means of rigid end plates. Determine (a) the magnitude of the applied force, (b) the corresponding stress in the brass core. 2.35 A 4-ft concrete post is reinforced with four steel bars, each with a frac34-in. diameter. Knowing that Es = 29 imes 10^6 psi and Ec = 3.6 imes 10^6 psi, determine the normal stresses in the steel and in the concrete when a 150-kip axial centric force P is applied to the post. P 60 mm Fig. P2.33 and P2.34 4 ft$

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