### ME2030 COMPOSITE MATERIALS Syllabus for Mechanical Seventh(7th) Semester - Anna University

ME2030                                    COMPOSITE MATERIALS                                 L T  P C
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OBJECTIVES:
·    To understand the fundamentals of composite material strength and its mechanical behavior Understanding the analysis of fiber reinforced Laminate design for different
·    combinations of plies with different orientations of the fiber.
·    Thermo-mechanical behavior and study of residual stresses in Laminates during processing.  Implementation  of  Classical  Laminate  Theory  (CLT)  to  study  and

analysis for residual stresses in an isotropic layered structure such as electronic chips.

UNIT I              INTRODUCTION, LAMINA CONSTITUTIVE EQUATIONS & MANUFACTURING   12
Definition Need General Characteristics, Applications. Fibers Glass, Carbon, Ceramic and Aramid fibers.  Matrices Polymer, Graphite, Ceramic and Metal Matrices
Characteristics  of  fibers  and  matrices.    Lamina  Constitutive  Equations:  Lamina
Assumptions Macroscopic Viewpoint. Generalized Hookes Law. Reduction to Homogeneous Orthotropic Lamina Isotropic limit case, Orthotropic Stiffness matrix (Qij), Typical Commercial material properties, Rule of Mixtures. Generally Orthotropic Lamina Transformation Matrix, Transformed Stiffness. Manufacturing: Bag Moulding Compression Moulding Pultrusion Filament Winding Other Manufacturing Processes

UNIT II            FLAT PLATE LAMINATE CONSTITUTE EQUATIONS                         10
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.

UNIT III            LAMINA STRENGTH ANALYSIS                                                            5
Introduction  -  Maximum  Stress  anStrain  Criteria.  Von-Misses  Yield  criteriofor Isotropic  Materials.  Generalized  Hill’s  Criterion  foAnisotropic  materials.  Tsai-Hill’s Failure Criterion for Composites.   Tensor Polynomial (Tsai-Wu) Failure criterion. Prediction of laminate Failure

UNIT IV          THERMAL ANALYSIS                                                                              8
Assumption of Constant C.T.Es. Modification of Hookes Law. Modification of Laminate Constitutive Equations. Orthotropic Lamina C.T.Es. C.T.Es for special Laminate Configurations Unidirectional, Off-axis, Symmetric Balanced Laminates, Zero C.T.E laminates, Thermally Quasi-Isotropic Laminates

UNIT V           ANALYSIS OF LAMINATED FLAT PLATES                                         10
Equilibrium Equations of Motion. Energy Formulations. Static Bending Analysis. Buckling
Analysis. Free Vibrations Natural Frequencies

TEXT BOOKS:

TOTAL: 45 PERIODS

1.  Gibson,  R.F.,  Principles  of  Composite  Material  Mechanics,  McGraw-Hill,  1994, Second Edition - CRC press in progress.
2.  Hyer, M.W., Stress Analysis of Fiber Reinforced Composite Materials, McGraw-
Hill, 1998

REFERENCES:
1.  Issac M. Daniel and Ori Ishai, Engineering Mechanics of Composite Materials, Oxford University Press-2006, First Indian Edition - 2007
2.  Mallick, P.K., Fiber ”Reinforced Composites: Materials, Manufacturing and Design,
Maneel Dekker Inc, 1993.
3.  Halpin, J.C., Primer on Composite Materials, Analysis, Techomic Publishing Co.,
1984.

4.  Agarwal, B.D., and Broutman L.J., Analysis and Performance of Fiber Composites, John Wiley and Sons, New York, 1990.
5.  Mallick,   P.K an Newman S. (edition) Composit Material Technology:
Processes and Properties, Hansen Publisher, Munish, 1990.

By Vinoth
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