AS4071 Aerospace Materials Syllabus:

AS4071 Aerospace Materials Syllabus – Anna University PG Syllabus Regulation 2021

COURSE OBJECTIVES:

This course will enable students
1. To get insights into the basic aspects of material science.
2. To provide basic idea on the mechanical behaviour of materials.
3. To impart knowledge on the macro mechanics of composite materials,
4. To gain knowledge on the analysis and manufacturing methods of composite materials.
5. To learn about the sandwich construction.

UNIT I MATERIAL SCIENCE

Crystallography of metals & metallic alloys – Imperfections – Dislocations in Different Crystal Systems – Effect on plasticity – Strengthening Mechanisms Due to Interaction of Dislocations with Interfaces – Other Strengthening Methods – Dislocation Generation Mechanisms

UNIT II MECHANICAL BEHAVIOUR

Stress-strain curve and mechanical behaviour of materials – linear elasticity and plasticity – failure of ductile and brittle materials – use of failure theories – maximum normal stress and maximum shear stress failure theories – importance of the octahedral stress failure theory – failure theories based on strain energy – cyclic loading and fatigue of materials – the S-N curve

UNIT III METALLIC ALLOYS

Metals and alloys used for different aerospace applications – Properties of conventional and advanced aerospace alloys – Effect of alloying elements – Summary of conventional and stateof-the-art manufacturing processes – Types of heat treatment and their effect – other processing parameters – Materials for aerospace application – Design requirements & standards

UNIT IV HIGH TEMPERATURE MATERIALS

Carbon-Carbon Composites and Ceramic Materials For High Temperature Aerospace Application – Manufacturing Technologies & Controlling Parameters – Mechanical and Thermal Properties of These Material Systems – Thermal Protection Material System for a Re-Entry Vehicle – Use of Superalloys – Metal Matrix Composites &Cermets – Properties and Applications – Mechanical and Thermal Fatigue

UNIT V SMART MATERIALS

Introduction to smart materials-shape memory effects-shape memory alloys-shape memory polymers-electro-rheological fluids-energy harvesting materials-self healing polymers.

TOTAL : 45 PERIODS

COURSE OUTCOMES:

Upon completion of this course, students will
CO1:Be able to investigate the physical and mechanical behaviour of different materials.
CO2:Have exposure on dislocation theories and their importance.
CO3:Have general knowledge of the properties of different aerospace materials
CO4:Be able to apply failure theories appropriately.
CO5:Be able to select good materials for a specific aerospace application.

REFERENCES

1. Adrian Mouritz, “Introduction to Aerospace Materials”, Woodhead Publishing, 1st edition, 2012.
2. Jones. R M, “Mechanics of Composite Materials”, 2nd Edition, CRC Press, Taylor & Francis Group, 1998.
3. Prasad, N. Eswara, Wanhill, RJH, “Aerospace Materials and Material TechnologiesVolume 1: Aerospace Materials”, Springer Singapore, 2017.
4. Sam Zhang &Dongliang Zhao, “Aerospace Materials Handbook”, CRC Press, Taylor & Francis Group, 2012.
5. Brain culshaw, smart structures and materials, Artech house, 2000.