Introduction to aircraft materials, Ferrous alloys, super alloys, composites/non-metallic composites, Properties of materials–Aluminum alloys – Nano crystalline aluminum alloys – Titanium alloys – α-β alloys, Super plasticity – Structural titanium alloys. Lab experiments: 1. Exercise on composites & repair work. 2. Perform double lap joint strength test as per the ASTM procedure.

Micro mechanics – Mechanics of materials approach, elasticity approach– Bounding techniques – Fiber volume ratio – Mass fraction– Elastic constants– Macro mechanics –stress-strain relations with respect to natural axis, arbitrary axis –Experimental characterization of lamina – Failure theories of a lamina – Hydrothermal effects on lamina. Lab experiments: 1. Fabrication of Composite plate using Compression Molding Technique 2. Carry out the tensile test of the prepared composite specimen as per the ASTM procedure.

Types of 2D elements, Formulation of elemental stiffness matrix and load vector and load vector for Plane stress/strain such as Constant Strain Triangles (CST), Pascal‗s triangle , primary and secondary variables, properties of shape functions. Assembly of global stiffness matrix and load vector, Boundary conditions, solving for primary variables (displacement) - example problems, Overview of axi-symmetric elements. Lab experiments: 1. Stress and deflection analysis of aircraft component consisting of 2-D element using FEA software. 2. Study of Contact Analysis in a Aircraft Landing Gear System.

Concept of isoperimetric elements, Terms Isoperimetric, super parametric and sub-parametric. Isoperimetric formulation of bar element. Coordinate mapping-Natural coordinates, higher order elements – lagrangean and serendipity elements. Convergence requirements-patch test, uniqueness of mapping-Jacobian matrix. Numerical integration- 2 and 3 point quadrature, full and reduced integration- example problems. Lab experiments: 1. Analyzing a plate with a hole subjected to tensile loading. 2. Harmonic vibration of a plate with holes.

Introduction, Governing differential equation, steady-state heat transfer formulation of 1D element for conduction and convection problem, boundary conditions and solving for temperature distribution- example problems. Types of dynamic analysis, General dynamic equation of motion, point and distributed mass, lumped and Consistent mass, Mass matrices formulation of bar and beam element, Un-damped-free vibration- example problems Lab experiments: 1. Heat transfer through a composite wall/ Thermal analysis of fin and chip using FEA software. 2. Modal analysis 1-D beam -simply supported / cantilever beams.