PA4010 Mechanical Behavior of Materials Syllabus:
PA4010 Mechanical Behavior of Materials Syllabus – Anna University PG Syllabus Regulation 2021
OBJECTIVES:
To know the mechanical behavior of both metallic and non-metallic materials under different loading and temperature conditions.
To evaluate the failure analysis and Justify the safe use of materials for engineering applications
To gain knowledge about selection of suitable materials for different applications & conduct cost analysis
To understand the concepts & properties of metallic materials
To understand the concepts & properties of non-metallic materials
UNIT I BASIC CONCEPTS OF MATERIAL BEHAVIOR
Elasticity in metals and polymers– Strengthening mechanisms, work hardening, solid solutioning, grain boundary strengthening, poly phase mixture, precipitation, particle, fibre and dispersion strengthening. Effect of temperature, strain and strain rate on plastic behavior–Super plasticity–Griffith’s theory,– Ductile, brittle transition in steel – High temperature fracture, creep – Larson Miller parameter– Deformation and fracture mechanism maps.
UNIT II BEHAVIOUR UNDER DYNAMIC LOADS AND DESIGN APPROACHES
Stress intensity factor and fracture toughness – Fatigue, low and high cycle fatigue test, crack initiation and propagation mechanisms and Paris law.- Safe life, Stress life, strain-life and fail – safe design approaches -Effect of surface and metallurgical parameters on fatigue – Fracture of non metallic materials – Failure analysis, sources of failure, procedure of failure analysis.
UNIT III SELECTION OF MATERIALS
Motivation for selection, cost basis and service requirements–Selection for mechanical properties, strength, toughness, fatigue and creep – Selection for surface durability corrosion and wear resistance – Relationship between materials selection and processing – Case studies in materials selection with relevance to aero, auto, marine, machinery and nuclear applications – Computer aided materials selection.
UNIT IV MODERN METALLIC MATERIALS
Dual phase steels, High strength low alloy (HSLA) steel, Transformation induced plasticity (TRIP) Steel, Maraging steel, Nitrogen steel–Intermetallics, Ni and Ti aluminides – smart materials, shape memory alloys – Metallic glass and nano crystalline materials.
UNIT V NON METALLIC MATERIALS
Polymeric materials – Formation of polymer structure – Production techniques of fibers, foams, adhesives and coating – structure, properties and applications of engineering polymers – Advanced structural ceramics, WC, TIC, TaC, Al2O3, SiC, Si3N4 CBN and diamond – properties, processing and applications.
TOTAL: 45 PERIODS
OUTCOMES:
At the end of the course, students will be able to Familiarize the students in the area of material behavior under different loading and selection of materials for the design of engineering structures
Understand the mechanism involved in the elastic and plastic behavior of metals
Apply their knowledge in mechanisms of metallic and nonmetallic systems
Understand the fundamental of fracture mechanics
Apply their knowledge of cost analysis & selection of materials
REFERENCES:
1. Ashby M.F., materials selection in Mechanical Design 2nd Edition, Butter worth 1999.
2. Charles, J.A., Crane, F.A.A. and Fumess, J.A.G., Selection and use of engineering materials, (34 d editions), Butterworth-Heiremann, 1997.
3. Flinn, R.A., and Trojan, P.K., Engineering Materials and their Applications, (4th Edition) Jaico, 1999.
4. George E. Dieter, Mechanical Metallurgy, McGraw Hill, 1988.
5. Metals Hand book, Vol.10, Failure Analysis and Prevention, (10th Edition), Jaico, 1999.
6. Thomas H. Courtney, Mechanical Behavior of Materials, (2nd edition), McGraw Hill, 2000