CAE345 Composite Materials and Structures Syllabus:
CAE345 Composite Materials and Structures Syllabus – Anna University Regulation 2021
OBJECTIVES:
• To provide the students an understanding on classification and applications of composite materials and its micromechanical study
• To provide the students an understanding on Macromechanics and engineering constants required to relate stress and strain
• To make the students to learn about laminate coding and its governing equations.
• To make the students to familiar with various methods of composite fabrication
UNIT I MICROMECHANICS
Introduction – advantages and application of composite materials – types of reinforcements and matrices – micro mechanics – mechanics of materials approach, elasticity approach- bounding techniques – fiber volume ratio – mass fraction – density of composites. effect of voids in composites.
UNIT II MACROMECHANICS
Generalized Hooke’s Law – elastic constants for anisotropic, orthotropic and isotropic materials – macro mechanics – stress-strain relations with respect to natural axis, arbitrary axis – determination of in plane strengths of a lamina – experimental characterization of lamina. failure theories of a lamina. hygrothermal effects on lamina.
UNIT III LAMINATED PLATE THEORY
Governing differential equation for a laminate. stress – strain relations for a laminate. different types of laminates. in plane and flexural constants of a laminate. hygrothermal stresses and strains in a laminate. failure analysis of a laminate. impact resistance and interlaminar stresses. netting analysis
UNIT IV FABRICATION PROCESS AND REPAIR METHODS
Various open and closed mould processes, manufacture of fibers, importance of repair and different types of repair techniques in composites – autoclave and non-autoclave methods.
UNIT V SANDWICH CONSTRUCTIONS
Basic design concepts of sandwich construction – materials used for sandwich construction – failure modes of sandwich panels – bending stress and shear flow in composite beams.
TOTAL: 45 PERIODS
OUTCOMES
• Apply the micromechanics for the analysis of composite materials
• Apply the macromechanics for the analysis of composite materials
• Experiment with the laminated composites for various loading cases
• Demonstrate the manufacturing of composites
• Explain the applications and uses of composites in various fields
TEXT BOOKS:
1. Autar K Kaw, ‘Mechanics of Composite Materials’, CRC Press, 2nd edition, 2005.
2. Isaac M. Daniel & Ori Ishai , “Mechanics of Composite Materials,” OUP USA publishers, 2nd edition, 2005.
3. Madhujit Mukhopadhyay, Mechanics of Composite Materials and Structures, University Press, 2004
REFERENCES:
1. Agarwal, B.D., and Broutman, L.J., “Analysis and Performance of Fibre Composites,” John Wiley & Sons, 3rd edition, July 2006.
2. Allen Baker, Composite Materials for Aircraft Structures, AIAA Series, 2ndEdition, 2004.
3. Calcote, L R. “The Analysis of laminated Composite Structures”, Von – Nostrand Reinhold Company, New York 1998.
4. Lubing, Handbook on Advanced Plastics and Fibre Glass, Von Nostran Reinhold Co., New York, 1989.
5. Michael F. Ashley, “Material Selection in Mechanical Design”, 5th edition, Butterworth-Heiner, 2016