Question

m
- SET-1)
18. A bimetallic cylindrical bar of cross
sectional area 1 m is made by bonding
Steel (Young's modulus = 210 GPa) and
Aluminium (Young's modulus = 70 GPa) as
shown in the figure. To maintain tensile
axial strain of magnitude 10° in Steel bar
and compressive axial strain of magnitude
10° in Aluminium bar, the magnitude of the
required force P (in kN) along the indicated
direction is
15 (1.718)
(€) diagram
is shown in
to point A,
train of 0.5.
ading up to
IPa. Given
0 GPa, the
:) is
Ome Mark
2
damped end
Steel
- Aluminium
Perfectly bonded interface
padtep
mivet hele. let Pbe
(a) 70
(c) 210
(GATE-18-SET - 2)
(b) 140
(d) 280​

Answer 1

option d is the correct answer