Question

Composite bar with end load (two segments)

The composite bar BCD in the figure is composed of an inner aluminum cylindrical core of length 2L=2 m and radius R=1 cm and a sleeve of steel of length L=1 m and thickness R=1 cm surrounding the aluminum core in the CD section of the bar. The Young’s moduli are: E(Al) = 70 GPa, and E(steel)=210 GPa. The bar is fixed at B and a concentrated tensile load F is applied at the free end D. The resulting total elongation of bar BCD, is δ=1 cm. Determine the normal stress in the steel sleeve. (in MPa)

i[dot]imgur[dot]com/McHq9LJ.png

Answer 1

Helpless it is, 184 MPA

Do you have figured out Problem 1 and 2?

Answer 2

Anyone?

Answer 3

Problem 1 and 2?

Answer 4

Problem 1 and 2 please!

Answer 5

Determine the normal stress in the steel sleeve.

Obtain the numerical value of the displacement of section.
pllllllllllllllllllllz help?

Answer 6

-86.8 MPa

Answer 7

problem3_1 second part,

Obtain the numerical value of the displacement of section c....!
plz help?

Answer 8

@jojo

0.4mm

Answer 9

3_2(a)

3_2(b)
plz help.

Answer 10

3_3 problem

plz help.