A composite bar is constructed from a steel rod of (25 mm) diameter surrounded by a copper tube of (50 mm) outside diameter and (25 mm) inside diameter. The rod and tube are joined by tow (20 mm) diam. pins as shown in figure. Find the shear stress set up in the pins if, after pinning, the temperature is raised by 50°C. For steel E= 210 GN/m2 and a 11*10 per "C, for copper E= 10' GN/m and a = 17*10“ per °C.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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A composite bar is constructed from a steel rod of (25 mm) diameter
surrounded by a copper tube of (50 mm) outside diameter and (25 mm)
inside diameter. The rod and tube are joined by tow (20 mm) diam. pins as
shown in figure . Find the shear stress set up in the pins if , after pinning,
the temperature is raised by 50°C. For steel E= 210 GN/m? and a = 11*106
per "C, for copper E= 10° GN/m' and a = 17*10° per °C.
Copper
Steel
50 mm
25 mm
Pins
20 mm
20 mm
Transcribed Image Text:A composite bar is constructed from a steel rod of (25 mm) diameter surrounded by a copper tube of (50 mm) outside diameter and (25 mm) inside diameter. The rod and tube are joined by tow (20 mm) diam. pins as shown in figure . Find the shear stress set up in the pins if , after pinning, the temperature is raised by 50°C. For steel E= 210 GN/m? and a = 11*106 per "C, for copper E= 10° GN/m' and a = 17*10° per °C. Copper Steel 50 mm 25 mm Pins 20 mm 20 mm
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