At a temperature of 60°F, a 0.05-in. gap exists between the ends of the two bars shown. Bar (1) is an aluminum alloy [E = 10,000 ksi; v = 0.32; a = 12.5 x 10-6/°F] bar with a width of 3.0 in. and a thickness of 0.65 in. Bar (2) is a stainless steel [E = 28,000 ksi; v = 0.12; a = 9.6 x 10-6/°F] bar with a width of 1.6 in. and a thickness of 0.65 in. The supports at A and C are rigid. Assume h₁=3.0 in., h₂=1.6 in., L₁=32 in., L₂=46 in., and 4 = 0.05 in. Determine (a) the lowest temperature at which the two bars contact each other. (b) the normal stress in the two bars at a temperature of 265°F. (c) the normal strain in the two bars at 265°F. (d) the change in width of the aluminum bar at a temperature of 265°F. (1) ↑ h₁ B L₁ A L2

At a temperature of 60°F, a 0.05-in. gap exists between the ends of the two bars shown. Bar (1) is an aluminum alloy [E = 10,000 ksi; v = 0.32; a = 12.5 x 10-6/°F] bar with a width of 3.0 in. and a thickness of 0.65 in. Bar (2) is a stainless steel [E = 28,000 ksi; v = 0.12; a = 9.6 x 10-6/°F] bar with a width of 1.6 in. and a thickness of 0.65 in. The supports at A and C are rigid. Assume h₁=3.0 in., h₂=1.6 in., L₁=32 in., L₂=46 in., and 4 = 0.05 in. Determine (a) the lowest temperature at which the two bars contact each other. (b) the normal stress in the two bars at a temperature of 265°F. (c) the normal strain in the two bars at 265°F. (d) the change in width of the aluminum bar at a temperature of 265°F. (1) ↑ h₁ B L₁ A L2

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.

Question

At a temperature of 60°F, a 0.05-in. gap exists between the ends of the two bars shown. Bar (1) is an aluminum alloy [E = 10,000
ksi; v = 0.32; a = = 12.5 x 10-6/°F] bar with a width of 3.0 in. and a thickness of 0.65 in. Bar (2) is a stainless steel [E = 28,000 ksi; v =
0.12; a = 9.6 x 10-6/°F] bar with a width of 1.6 in. and a thickness of 0.65 in. The supports at A and C are rigid. Assume h₁=3.0 in.,
h₂=1.6 in., L₁=32 in., L₂=46 in., and A = 0.05 in. Determine
(a) the lowest temperature at which the two bars contact each other.
(b) the normal stress in the two bars at a temperature of 265°F.
(c) the normal strain in the two bars at 265°F.
(d) the change in width of the aluminum bar at a temperature of 265°F.
(1)
h₂
B
L₁
h₁
L2

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