Subject Code & Name: ME25C14 – Mechanical Behaviour of Materials
Regulation: R-2025
Semester: III (Third Semester)
Branch: B.E. Mechanical Engineering (Automobile) (Mech(Auto)) / B.E. Mechanical Engineering (Smart Manufacturing) (Mech(Smart))
Credits / L-T-P: 4 Credits | L-T-P: 3-0-2
Course Objectives
- To introduce the mechanical behavior of engineering materials, including deformation, strength, and tribological properties.
- To develop skills in material selection, testing, and analysis using standard methods.
- To enable evaluation and application of advanced and functional materials in engineering industries.
Full Unit-wise Syllabus
Unit I – Selection of Material and Design Approach
Selection of materials based on function, Objective, Constraints, free variables and service requirements, Relationship between materials selection and processing, Effect of surface and metallurgical parameters on fatigue, Safe life, Stress-life, strain-life and fail-safe design approaches - Fracture of non metallic Materials, Failure analysis, sources of failure, procedure of failure analysis.
Practical: Measuring of Surface Roughness, Fracture surface studies using optical microscope.
Activities: Case studies in materials selection with relevance to auto, marine and aero application.
Unit II – Testing of Materials Behaviour
Testing of mechanical properties of polymers/composite materials and their ASTM standards: Tensile test, compression test, Impact test, hardness test, shear and bending, Testing of tribological properties of composite materials: pin on disc, corrosion studies
Practical: Mechanical testing for Compression, Hardness, Torsion Test, Pin on Disc for wear testing, Experiments using Corrosion studies.
Activities: Sample preparation for material testing according to ASTM standards.
Unit III – Study of Micro Structure Behaviour of Materials
General working principle, applications, limitations: metallurgical optical microscope, Scanning Electron Microscope(SEM), Transmission Electron Microscope(TEM), X-ray diffraction (XRD), Energy Dispersive X-ray analysis(EDX), atomic force microscope(AFM), X- ray photoelectron spectroscopy (XPS), Raman spectroscope.
Practical: Micro and Macroscopic Metallurgical Observation.
Activities: Sample preparations of metallurgical micro structure study.
Unit IV – Advanced and Functional Materials
Intermetallics, Ni and Ti aluminides, Alloys, Al, Mg, Cu, Superalloys-Ironbase, Cobaltbase, Nickelbase, Metal matrix composites (MMC):Al alloys, Advanced ceramics: WC, TIC, TaC, Al2O3, SiC, Si3N4CBN, polymers: GFRP and CFRP laminated composite, polymers used in Additive manufacturing.
Practical: Development of samples using Additive manufacturing process for mechanical testing.
Activities: Visual demonstration of 3D printing Tasks T1. A machine component fails due to unexpected fracture – analyze material behavior and suggest suitable material selection. T2. A polymer component shows excessive deformation under load – evaluate viscoelastic properties and improve design. T3. A mechanical part experiences high wear and corrosion – analyze tribological behavior and recommend material/treatment. T4. An industrial component fails under cyclic loading – study fatigue behavior and propose design improvements.
Course Outcomes (COs)
- CO1: Explain mechanical behavior of materials including deformation, strength, and tribological properties.
- CO2: Apply material selection, testing methods, and analysis for engineering applications.
- CO3: Analyze material behavior under different loading conditions including fatigue, wear, and corrosion.
- CO4: Evaluate advanced and functional materials based on performance, properties, and industrial applications.
Assessment Pattern (Quick Note)
- Weightage: Continuous Assessment 50% | End Semester Examinations 50%
- Internal methodology: Written Test (40%), Practical (30%), Activity (30%). Practical: Lab Experiments (50%), Tasks (50%) (Each student must complete a minimum of two tasks). Activity: Review of GATE/ESE Questions (10%), Mini Project/ Quiz/ Assignment Programs/ Flipped Class /Seminar Presentation (20%)
Source: Official Anna University – B.E. Mechanical Engineering (Automobile) R-2025 Syllabus
Last Updated: September 2026
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