JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Course Objective

Understand the basic concepts of fracture and failure.

Course Outcome

At the end of this course the student will be able to identify and analyze

the factors responsible for failure of materials and differentiate fracture modes and failure mechanisms

UNIT - I

Concepts of fracture, elastic stress field and LEFM

UNIT - II

Crack-tip plastic zone, fracture toughness testing, subcritical crack growth in cyclic loading

UNIT - III

Classification of failures, principles of fracture mechanics and types of fracture

UNIT - IV

Fatigue fracture, crack growth and Paris law, creep fracture, manifestation, J integral approach

UNIT - V

Fracture surface and fracture path analysis to characterize failure mechanism and to locate origin of fracture. Fracto features of ductile brittle serration, analysis of cleavage, intergranular fracture, and stress corrosion cracking

TEXT BOOKS:

• 1. E.E. Gdowan, Fracture Mechanism: An Introduction, Springer, 2005
• 2. A.F. Liu, Mechanics and Mechanisms of Fracture: An Introduction, ASM, 2004

REFERENCES:

• 1. ASM Metal Hand book, Vol 12, Fractography, ASM Int, 2004
• 2. Damage and Fracture Mechanics, Failure Analysis of Engineering Materials and Structures, Editors: Boukharouba, Taoufik, Elboujdaini, Mimoun, Pluvinage, Guy , Springer, 2009
• 3. Failure Analysis of Engineering Materials, Charlie R. Brooks, Ashok Choudhury, McGraw Hill Professional, 2002 R16 B.TECH METALLURGICAL AND MATERIALS ENGG.