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00000ME309121901

PART C

Answer any four full questions, each carries 10 marks.
With a neat sketch explain the procedure for fatigue testing and draw the S-N
curve.
Explain the importance of Griffith’s theory in brittle fracture of materials.
Illustrate DBTT in steels.
Differentiate ductile fracture and brittle fracture.
Explain five methods to improve fatigue life of components.
Define creep. List any four factors affecting creep rate.
Classify and explain the different types of composites.
Describe the different types of nuclear materials.
Explain the role of biomaterials in medical application.
Compare the properties and applications of super alloys and intermetallics.

Classify ceramics. Give two applications of ceramics.

RE

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