7. A rigid bar ABC is pinned at A and is connected by steel bar CE and a copper bar BD as shown. If the temperature of the whole assembly is raised by 40°C, find the stresses included in steel and copper rods. Given: Area Modulus of Elasticity Coefficient of thermal expansion For Steel Bar 400 mm? 2×10°N / mm² 12×10-6°C For Copper Bar 600 mm? 1×10°N / mm? 18×10 6°C

7. A rigid bar ABC is pinned at A and is connected by steel bar CE and a copper bar BD as shown. If the temperature of the whole assembly is raised by 40°C, find the stresses included in steel and copper rods. Given: Area Modulus of Elasticity Coefficient of thermal expansion For Steel Bar 400 mm? 2×10°N / mm² 12×10-6°C For Copper Bar 600 mm? 1×10°N / mm? 18×10 6°C

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

Conduction and Convection

When energy travels from one object to another it is said to have undergone heat transfer. Heat transfer is nothing but the transfer of thermal energy or internal energy from one thing to another, like e.g., when a vessel with water, kept on top of a burner, heats up because of the flame underneath it.

Question

7. A rigid bar ABC is pinned at A and is connected by steel bar CE and a copper bar BD as
shown. If the temperature of the whole assembly is raised by 40°C, find the stresses included in
steel and copper rods. Given:
Area
Modulus of Elasticity
Coefficient of thermal expansion
For Steel Bar
400 mm?
2×10°N / mm?
12x10-6°C
For Copper Bar
600 mm?
1×10°N / mm?
18×10 6°C
В
A
1m
1m
Steel
0.6m
0.8m
Copper

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