A composite bar made up of aluminum and steel is held between two supports as shown. The bars are stress-free at a temperature of 40 degrees Celsius. What will be the stresses in the two bars when the temperature is 20 degrees Celsius if the supports are non-yielding.

A composite bar made up of aluminum and steel is held between two supports as shown. The bars are stress-free at a temperature of 40 degrees Celsius. What will be the stresses in the two bars when the temperature is 20 degrees Celsius if the supports are non-yielding.

Materials Science And Engineering Properties

1st Edition

ISBN:9781111988609

Author:Charles Gilmore

Publisher:Charles Gilmore

Chapter7: Making Strong Materials

Section: Chapter Questions

Problem 7.5P

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Question

A composite bar made up of aluminum and steel is held between two supports as shown. The bars are stress-free at a
temperature of 40 degrees Celsius. What will be the stresses in the two bars when the temperature is 20 degrees
Celsius if the supports are non-yielding.
-Steel
Aluminium
Steel: a = 11.7x10-6/°C; Es = 210 GN/m²
Aluminum: a =
25 mm 50 mm
-0.3 m-
23.4x10-6/°C; EA 74 GN/m²
-0.6 m-
M

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