EXAMPLE 1.39. A composite bar made up of aluminium and steel held between two supports as shown in Fig. 1.55. The bars are stress iree at the tcmperature of 8°C. What will be the tresses in the two bars when the errc if, (a) the supports are unyielding, and (b) the иррorts сomе пеarer each other by 0.1 mm. li can be assumed that the change of temperature is uniform all along the length of the bar, E for steel= 2.1x 10 kg/cm, E for alu- minium-7.4x 10% kg/cm², x 104 per °C; aAL for aluminium=23.4 x 10³ per °C. Steel bar dia. 50 mm Aluminium bar dia. 25 mm temperatnre is to 60 cm *-30 cm- %3D Fig. 1.55 coefficient of expansion for steel a, 11.7 (4.M.I.E.) %3D %3D

EXAMPLE 1.39. A composite bar made up of aluminium and steel held between two supports as shown in Fig. 1.55. The bars are stress iree at the tcmperature of 8°C. What will be the tresses in the two bars when the errc if, (a) the supports are unyielding, and (b) the иррorts сomе пеarer each other by 0.1 mm. li can be assumed that the change of temperature is uniform all along the length of the bar, E for steel= 2.1x 10 kg/cm, E for alu- minium-7.4x 10% kg/cm², x 104 per °C; aAL for aluminium=23.4 x 10³ per °C. Steel bar dia. 50 mm Aluminium bar dia. 25 mm temperatnre is to 60 cm *-30 cm- %3D Fig. 1.55 coefficient of expansion for steel a, 11.7 (4.M.I.E.) %3D %3D

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Pressure Vessels

The term pressure vessel refers to a closed container that contains gas or liquid at a different pressure than environment pressure. The pressure vessels have a wide scale of applications in our day-to-day lives and other industrial places. Some common examples of pressure vessels are gas cylinders, autoclaves, compressor vessels, etc.

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EXAMPLE 1.39. A composite bar made up of aluminium and steel
is held between two supports as shown in Fig. 1.55. The bars are stress
free at the tcmperature of
38 C. What will be the
stresses in the
when the
21°C if, (a) the supports
are unyielding, and (b) the
supports
each other by 0.1 mm. li
can be assumed that the
change of temperature is
uniform all along the length
of the bar, E for steel=
2.1x 10 kg/cm", E for alu-
minium-7.4x 105 kg/cm2, coefficient of expansion for steel a,=11.7
two bars
temperatnre is
Steel bar
dia. 50 mm
Aluminium bar
dia. 25 mm
come пеarer
to
60 cm-
-30 cm-
Fig. 1.55
x 10
per °C; aA for aluminium=23.4 x 10' per °C.
(4.M.I.E.)

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