Mechanical Behaviour of Engineering Materials:
Introduction to aerospace materials and their classification, Linear and non-linear elastic properties-Stress and Strain Curves-Yielding and strain Hardening, Toughness- Modules of resilience- Bauchinger's effect-Effect of notches-Testing and flaw detection of materials and components, knowledge of various material testing machines
Non-ferrous materials in aircraft construction:
Aluminium and its alloys: Types and identification. Properties- Castings-Heat treatment processes –Surface treatments. Magnesium and its alloys: Cast and Wrought alloys-Aircraft application, features specification, fabrication problems, Special treatments.
Titanium and its alloys:
Applications, machining, forming, welding and heat treatment, Copper Alloys. Wood and fabric in aircraft construction and specifications- Glues Use of glass, plastics & rubber in aircraft, Introduction to glass & carbon composite.
Ferrous materials in aircraft construction:
Steels: Plain and low carbon steels, various low alloy steels, aircraft steel specifications, corrosion and heat resistant steels, structural applications. Maraging Steels: Properties and Applications. Super Alloys: Use -Nickel base-Cobalt base- Iron base -Forging and Casting of Super alloys-Welding, Heat treatment.
Ceramics and Composites:
Introduction, modern ceramic materials, cermets, glass ceramic, production of semi-fabricated forms, Carbon/Carbon composites, Fabrication processes and its aerospace applications involved in metal matrix composites, polymer composites.
High Temperature Materials Characterization:
Classification, production and characteristics, Methods and testing, Determination of mechanical and thermal properties of materials at elevated temperatures, Application of these materials in Thermal protection systems of Aerospace vehicles, High temperature material characterization.
Course Outcomes:
At the end of the course the student will be able to:
1. CO1: Apply the knowledge about the mechanical behaviour of different aircraft & aerospace materials.
2. CO2: Explain the applications of Aluminum alloys, Ceramics and Composites Materials.
3. CO3: Evaluate the importance of high temperature materials and their characterization.
Question paper pattern:
Textbook/s
1 Aircraft Material and Processes Titterton G F Lienhard V English Book Store, New Delhi 5th Ed.,1998
2 Advanced Aerospace Materials H Buhl Springer, Berlin 1992
Reference Books
1 Aerospace material Balram Gupta S Chand & Co 2009
2 Materials for Missiles and Space ParkerER Mc Graw-Hill 1963
3. The Materials of Aircraft Construction HillFT Pitman London 1937
4. Handbook of Aircraft materials C G Krishnadas Nair Interline publishers 1993