ML3012 Composite Materials Syllabus:
ML3012 Composite Materials Syllabus – Anna University Regulation 2021
COURSE OBJECTIVES:
The main learning objective of this course is to prepare the students for:
1. Gaining knowledge on different matrix and reinforcement materials and selection of them for making different composites.
2. Familiarizing with different manufacturing methods for making different polymer matrix composites components
3. Acquiring knowledge on various in-situ and ex-situ techniques for processing metal matrix composites and interface properties
4. Summarizing different techniques used to produce ceramic matrix composites and carbon-carbon composites
5. Developing constitutive equations for different laminates to evaluate the stress and strain in each lamina
UNIT I INTRODUCTION TO COMPOSITES
Fundamentals of composites – need for composites – enhancement of properties – classification of composites – Matrix-Polymer matrix composites (PMC), Metal matrix composites (MMC), Ceramic matrix composites (CMC) – Reinforcement – particle reinforced composites, Fibre reinforced composites. Applications of various types of composites. Fiber production techniques for glass, carbon and ceramic fibers
UNIT II POLYMER MATRIX COMPOSITES
Polymer resins – thermosetting resins, thermoplastic resins – reinforcement fibres – rovings – woven fabrics – non woven random mats – various types of fibres. PMC processes – hand lay up processes – spray up processes – compression moulding – reinforced reaction injection moulding – resin transfer moulding – Pultrusion – Filament winding – Injection moulding. Fibre reinforced plastics (FRP), glass fibre reinforced plastics (GRP). Laminates- Balanced Laminates, Symmetric Laminates, Angle Ply Laminates, Cross Ply Laminates.-applications of PMC in aerospace, automotive industries
UNIT III METAL MATRIX COMPOSITES
Characteristics of MMC, various types of metal matrix composites alloy vs. MMC, advantages of MMC, limitations of MMC, Reinforcements – particles – fibres. Effect of reinforcement – volume fraction – rule of mixtures. Processing of MMC – powder metallurgy process – diffusion bonding – stir casting – squeeze casting, In-situ reactions-Interface-measurement of interface properties- applications of MMC in aerospace, automotive industries
UNIT IV CERAMIC MATRIX COMPOSITES AND SPECIAL COMPOSITES
Engineering ceramic materials – properties – advantages – limitations – monolithic ceramics – need for CMC – ceramic matrix – various types of ceramic matrix composites- oxide ceramics – non oxide ceramics – aluminium oxide – silicon nitride – reinforcements – particles- fibres- whiskers. Sintering – Hot pressing – Cold isostatic pressing (CIPing) – Hot isostatic pressing (HIPing). Applications of CMC in aerospace, automotive industries- Carbon /carbon composites – advantages of carbon matrix – limitations of carbon matrix carbon fibre – chemical vapour deposition of carbon on carbon fiber perform. Sol-gel technique
UNIT V MECHANICS OF COMPOSITES
Lamina Constitutive Equations: Lamina Assumptions – Macroscopic Viewpoint. Generalized Hooke’s Law. Reduction to Homogeneous Orthotropic Lamina – Isotropic limit case, Orthotropic Stiffness matrix (Qij), Definition of stress and Moment Resultants. Strain Displacement relations. Basic Assumptions of Laminated anisotropic plates. Laminate Constitutive Equations – Coupling Interactions, Balanced Laminates, Symmetric Laminates, Angle Ply Laminates, Cross Ply Laminates. Laminate Structural Moduli. Evaluation of Lamina Properties from Laminate Tests. Quasi-Isotropic Laminates. Determination of Lamina stresses within Laminates.
TOTAL : 45 PERIODS
COURSE OUTCOMES
Upon completion of this course, the students can able to
1. Identify suitable matrix and reinforcement materials, to develop different composite components.
2. Select suitable process to fabricate PMC structures/component.
3. Design and select suitable processes to develop MMCs.
4. Suggest suitable techniques to fabricate CMCs and C-C composites.
5. Develop and use the constitutive equation for the design of composite components.
TEXT BOOKS
1. Chawla K. K., “Composite materials”, Springer – Verlag, Second Edition, 1998.
2. Mathews F. L. and Rawlings R. D., “Composite Materials: Engineering and Science”, Chapman and Hall, London, England, 1st edition, 1994.
REFERENCES
1. Broutman, L.J. and Krock,R.M., “ Modern Composite Materials”, Addison-Wesley, 1967
2. Clyne, T. W. and Withers, P. J., “Introduction to Metal Matrix Composites”, Cambridge University Press, 1993.
3. Sharma, S.C., “Composite materials”, Narosa Publications, 2000.
4. Strong, A.B., “Fundamentals of Composite Manufacturing”, SME, 1989.