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Department of Aerospace Engineering Indian Institute of Space Science and Technology

M.Tech. in Aerospace Engineering (Structures)

Curriculum SEMESTER-I

Code Course Title L-T-P Credits AE614 Elements of Aerospace Engineering 3-0-0 3

AE615 Mathematical methods in Aerospace engineering 3-0-0 3

AE651 Aerospace Structural Mechanics 4-0-0 4

AE652 Structural Dynamics 4-0-0 4

AE653 Finite Element Methods 3-0-0 3

TOTAL CREDITS= 17

SEMESTER- II

Code Course Title L-T-P Credits AE661 Fracture Mechanics and Fatigue 3-0-0 3

AE662 Advanced Finite Element Methods 3-0-0 3

AE663 Mechanics of Composite Materials 3-0-0 3

Elective-1 3-0-0 3

Elective-2 3-0-0 3

AE802 Seminar 1

AE807 Aerospace Structures Lab 0-0-3 1

TOTAL CREDITS= 17

SEMESTER- III

Code Course Title L-T-P Credits AE804 Project Work (Phase-1) 12 AE633 Aerospace Vehicle Design 2-0-3 3

Elective-3 3-0-0 3 TOTAL CREDITS= 18

SEMESTER- IV

Code Course Title L-T-P Credits AE805 Project Work (Phase-2) 18

Overall Credits: 17+17+18+18= 70 Electives

Code Course Title AE841 Aeroelasticity

AE842 Continuum Mechanics

AE843 Introduction to Robotics

AE844 Multi-rigid body dynamics

AE845 Aerospace Materials and Processes

AE846 Energy Methods in Structural Mechanics

AE847 Molecular Dynamics and Materials Failure

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SYLLABUS

AE614 Elements of Aerospace Engineering (3-0-0) History of aviation- Types of flying machines, Anatomy of an aircraft. Fundamental aerodynamic

variables- Aerodynamic forces, Lift generation, Airfoils and wings, Aerodynamic Moments, Concept of

Static stability, control surfaces. Mechanism of thrust production- Propellers, Jet engines and their

operation, Elements of rocket propulsion. Loads acting on an aircraft- Load factor for simple

maneuvers, V-n diagrams. Aerospace Materials, Aircraft and launch vehicle structural elements. Basic

orbital mechanics, Satellite orbits, Launch vehicles and Re-entry bodies.

References

1. Anderson.DavidWand Scott Eberhardt. Understanding Flight. 2nd ed. McGraw-Hill Professional, 2009.

2. Anderson.J.D. Introduction to flight. 4th ed. Mc Graw Hill, 2000. 3. Szebehely.V.G and Mark.H. Adventures in celestial mechanics. 4th ed. WILEY-VCH 4. Verlag GmbH Co, 2004. 5. Turner.M.J. Rocket and Spacecraft Propulsion. 3rd ed. Springer, 2009. 6. Newman.Dava. Interactive Aerospace Engineering and Design. Mc Graw Hill, 2002.

AE615 Mathematical Methods in Aerospace Engineering (3-0-0) Linear algebra: fundamentals, diagonalization, eigenvalues and eigenvectors, vectors spaces, orthogonality; ODEs: theory, analytical methods, stability; PDEs: basics,classification, model equations and their solutions; Complex variables and transform methods: complex variables, Laplace

and Fourier transforms; Vector Calculus: fields, Integral theorems; Tensor algebra; Perturbation

methods; Calculus of variations.

References 1. Bhaskar Dasgupta. Applied Mathematical Methods. Pearson Education, 2007. 2. Hassani Sadri. Mathematical Methods for Students of Physics and Related Fields. 2nd ed.

Springer, 2009.

3. Arfken G.B. Weber H.J and Harris H.E. Mathematical Methods for Physicists. 7th ed. Elsevier, 2012.

4. Boas Mary.L. Mathematical Methods in the Physical Sciences. 3rd ed. Wiley, 2005. 5. Dennery P. and Krzywicki.A. Mathematics for Physicists. Dover, 1996. 6. Bender.Carl. M and Orszag.Steven.A. Advanced Mathematical Methods for Scientists and

Engineers. Springer, 2010.

7. Greenberg.M. Advanced Engineering Mathematics. 2nd ed. Pearson, 1998. 8. Zill.Dennis G. and Cullen.Michael R. Differential Equations, with boundaryvalue problems.

10th ed. Wiley, 2012.

9. Glyn.James. Advanced Modern Engineering Mathematics. 4th ed. Pearson, 2011.

AE633 Aerospace Vehicle Design (2-0-3) Introduction to the design process - Requirements capture - Design optimization Aircraft Design:

Design considerations for civilian and military aircraft weight estimation - airfoil and geometry selection - thrust to weight ratio and wing loading - initial sizing - propulsion - landing gear and

subsystems - aerodynamics - stability, control, and handling qualities - flight mechanics and

performance issues Aircraft layout, configuration and structural aspects - constraint analysis Space Vehicle Design: mission design - basic orbital mechanics - range safety - rocket propulsion options -

attitude determination and control - configuration and structural design - thermal control power systems - design for re-entry - vehicle integration and recovery. (Design projects will be taken up by

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teams of students with different specializations, and they would do up to preliminary design together,

and then detail out subsystems related to their respective specializations.) References

1. Raymer D. P. Aircraft Design: A Conceptual Approach. 4th ed. AIAA, 2006. 2. Griffin M. D. and French J. R. Space Vehicle Design. 2nd ed. AIAA, 2004. 3. Anderson. J. D. Aircraft performance and Design, McGraw-Hil, 1999. 4. Corke T. C. Design of Aircraft. Prentice Hal, 2002. 5. Fielding J. P. Introduction to Aircraft Design. Cambridge Univ. Press, 1999. 6. E F Bruhn, Analysis and Design of Flight Vehicle Structures, Jacobs Publishing, 1973 7. M C- Y Niu, Airframe structural design, Conmilit Press, 1989

AE651 Aerospace Structural Mechanics (4-0-0)

Overview of Aircrafts, Rockets and Sallellite structures. Review of basic equations of elasticity State of Stress at a point - Analysis of strain - Constitutive relations - Generalized Hook's law theory of beams and plates- Energy methods in elasticity. Bending, shear and torsion of open and closed section

thin walled beams, Combined open and closed section beams-Structural idealisation of stiffened panels.

Elastic instability and Thermal stresses. Elements of Structural testing and experimentation.

References

1. Srinath L S, Advanced mechanics of solids, McGraw Hill. 2. Megson, T.H.G., Aircraft Structures for Engineering Students Ed.4, Butterworth Heinemann. 3. Timoshenko S P & Goodier J N, Theory of Elasticity, McGraw Hill . 4. Thin walled elastic beams ; 2nd Edition, TT-61-11400,VZ Vlasov, Published for the National

Science foundation, Washington DC and Department of commerce, USA by the Israel

Program for Scientific Translations,Jerusalem,1961

AE652 Structural Dynamics (4-0-0) Elements of analytical dynamics, Discrete systems with multiple degrees of freedom, elastic & inertia

coupling, natural frequencies and mode, free vibration response, uncoupling of equations of motion,

modal analysis, forced vibration response, vibration isolation Vibration of continuous systems,

differential equations and boundary conditions, longitudinal, flexural and torsional vibrations of one-

dimensional structures. Vibration analysis of simplified aircraft and launch vehicle structures, structural

damping, free and forced response of continuous systems. Introduction to concepts of nonlinear and

random vibrations. Elements of vibration testing and experimentation.

References

1. L. Meirovitch, "Elements of Vibration Analysis", 2nd ed. McGraw-Hill Book Co. 1988. 2. Mario Paz (2004), Structural Dynamics: Theory and Computation, CBS Publishers &

Distributors, New Delhi.

3. W.Weaver, S.P. Timoshenko and D.H. Young, Vibration Problems in Engineering , 5th Ed., John- Wiley & sons , 1990.

4. L.Melrovitch, Computational Methods in Structural Dynamics, Sitjho & Noordhoff, 1980 5. R.W. Cough and Joseph Penzien, Dynamics of Structure, McGraw Hill, 1975.

AE653 Finite Element Methods (3-0-0) Introduction - Finite Element Formulation starting from GDE - Finite Element Formulation based on

stationarity of a functional - One dimensional Finite Element analysis; shape functions, types of

elements, Applications Two and Three Dimensional Finite Elements; Numerical Integration, Applications to structural mechanics and fluid flow. References

1. Reddy, J. N., Introduction to the Finite Element Method, 3rd ed., McGraw-Hill (2006). 2. Textbook of Finite Element Analysis, Seshu.P, Prentice Hall of India, (2009). 3. Chandrupatla, T. R. and Belegundu, A. D., Finite Elements in Engineering, 2nd edition, Prentice

Hall of India, New Delhi, (2000).

4. Segerlind, L. J., Applied Finite Element Analysis, 2nd ed., John Wiley (1984).

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AE661 Fracture Mechanics and Fatigue (3-0-0) Linear elastic fracture mechanics, Energy release rate, Stress intensity factor, Relation between SIF and

energy release rate, Anelastic deformation at the crack tip,. J-integral, CTOD, Test methods for fracture

toughness, Crack growth and fracture mechanisms, Mixed-mode fracture, Fracture at nanoscale,

Numerical methods for analysing fracture- Applications. Fatigue and design against fatigue failure,

prediction of fatigue life. References

1. Prashant Kumar-Elements of Fracture Mechanics, Tata McGrawhill 2009

2. T.L Anderson, Fracture mechanics:Fundamentals and Applications, CRC Press. 3. MJ Buehler, Atomistic Modeling of Materials Failure, Springer, 2008

AE662 Advanced Finite Element Methods (3-0-0) Finite element Formulations for Beam,Plate/shell(Kirchhoff and Mindlin-Reissner), and Solid elements.

Large deformation nonlinearity- Nonlinear bending of beams and plates, . Stress and Strain measures,

Total Lagrangian and Updated Lagrangian formulations, Material nonlinearity-Ideal and strain

hardening plasticity, Elastoplastic analysis- Boundary nonlinearity-General contact formulations.

Solution procedures for Nonlinear analysis, Newton-Raphson iteration method. References

1. J N Reddy, Introduction to Nonlinear Finite Element Analysis, Oxford University Press, 2010 2. K.J.Bathe, Finite element Procedures in Engineering Analysis, Prentice Hall, 1996

AE663 Mechanics of Composite Materials (3-0-0) Introduction, Definition, classification, behaviors of unidirectional composites: prediction of strength,

stiffness, factors influencing strength & stiffness, failure modes, analysis of lamina; constitutive

classical laminate theory, thermal stresses, theories of failure. Design consideration, Mechanical

properties of composite materials; Analysis of composite laminated beams, thin walled composite

beams. Bending of composite plates. References

1. Mechanics of composite materials, by Robert Jones 2. Mechanics of Composite Structures, L.P. Kollar, L.S. Springer, Cambridge Uni. Press, (e-

book),2003.

3. Mechanics of Composite Structural Elements, H. Altenbach, J. Altenbach, W. Kissing, Springer,

2004.

AE807 Aerospace Structures Lab (0-0-3) Experiments in

(i) Strain measurements

(ii) Structural vibration

(iii) Wave propagation

(iv) Fabrication and testing of Laminated Composites

(v) Static and Stability behaviour of Thin-walled structures

(vi) Non-Destructive Testing

(vii) Structural modelling and analysis in CAE environment.

AE841 Aeroelasticity (3-0-0) Introduction to static and dynamic aeroelastic phenomena. Divergence, Control Efficiency & Control

Reversal - two dimensional Analysis. Divergence of unswept wings. Effect of sweep on divergence and

control reversal. Two-dimensional (airfoil) flutter analysis with quasi-steady and unsteady aerodynamic

loads. Introduction to buffeting, stall flutter, galloping and vortex-induced oscillations problems.

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References

1. Hodges D.H., Pierce G.A. Introduction to Structural Dynamics and Aeroelasticity. Cambridge University Press

2. Y.C.Fung, An Introduction to the Theory of Aeroelasticity, Dover, 1969 3. B.L.Bisplinghoff, H.Ashley and R.L. Halfman, Aeroelasticity, Addison-Wesley, 1972.

AE842 Continuum Mechanics (3-0-0) Review of tensor algebra, tensor analysis, Concept of continuum, Kinematics of a deformable body deformation and strain, motion and flow, Analysis of stress-stress tensors, Conservation laws -Mass and

Momentum conservation, Continuum thermodynamics - First and second laws applied to a continuum,

Clausius Duhem inequality, Constitutive relations, Applications. References

1. Morton.E.Gurtin, Eliot Fried, Lallit Anand, The mechanics and thermodynamics of continua, Cambridge University Press, (2009).

2. C.S.Jog, Foundations and applications of Continuum mechanics, Narosa Publications, (2002) 3. Geroge.E.Mase, Contiuum mechanics, Schaum's outlines, McGrawHill, (1970). 4. A.J.M.Spencer, Continuum mechanics, Dover Publications, (2004). 5. Lawrence E Malvern, Introduction to Mechanics of a continuous medium, Prentice hall, (1969). 6. P.Chadwick, Continuum mechanics, Concise theory and problems, Dover Publications, (1999).

AE843 Introduction to Robotics (3-0-0) Overview of robotics - manipulators and field robots; Robot mechanisms - serial chains, regional and

orientational mechanisms, parallel chains, reachable and dexterous work space, mechanisms of wheeled

and walking robots; Spatial displacements, rotation matrices, Euler angles, homogenous transformation,

D-H parameters, forward and inverse problems for serial and parallel manipulators; Task planning -

joint space and task space planning; Sensors - joint displacement sensors, force sensors, range finders,

vision sensors; Actuators - electric motors - stepper, PMDC and brushless DC motors, pneumatic and

hydraulic actuators; Speed reducers; Servo control of manipulators - joint feedback control, effect of

nonlinearities, inverse dynamic control, force feedback control; Higher level control - path planning,

configuration space, road map methods, graph search algorithms, potential field method. References

1. B. Siciliano, L. Sciavicco, L. Villani, and G. Oriolo, Robotics: Modelling, Planning and

Control, Springer, 2009.

2. A. Ghosal, Robotics: Fundamental Concepts and Analysis, Oxford University Press, 2006

3. H. Choset, et. al., Principless of Robot Motion - Theory, Algorithms, and Implementation, The

MIT Press, 2005.

AE844 Multi-rigid Body Dynamics (3-0-0) Review of planar motion of rigid bodies and Newton-Euler equations of motion; Constraints -

holonomic and non-holonomic constraints, Newton-Euler equations for planar inter connected rigid

bodies; D'Alembert's principle, generalized coordinates; Alternative formulations of analytical

mechanics and applications to planar dynamics - Euler-Lagrange equations, Hamilton's equations and

ignorable coordinates, Gibbs-Appel and Kane's equations; Numerical solution of differential and

differential algebraic equations; Spatial motion of a rigid body - Euler angles, rotation matrices,

quaternions, Newton-Euler equations for spatial motion; Equations of motion for spatial mechanisms. References

1. J. Ginsberg, Engineering Dynamics, Cambridge University Press, 2008. 2. M. D. Ardema, Analytical Dynamics: Theory and Applications, Kluwer Academic / Plenum

Publishers, 2005.

3. B. C. Fabien, Analytical System Dynamics: Modeling and Simulation, Springer, 2009. 4. H. R. Harrison and T. Nettleton, Advanced Engineering Dynamcis, Arnold, 1997. 5. F. C. Moon, Applied Dynamics, John Wiley and Sons Inc., 1998. 6. T. R. Kane and D. A. Levinson, Dynamics: Theory and Applications, Mc-GrawHill Book .

Company, 1985.

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AE845 Aerospace Materials and Processes (3-0-0) Properties of materials Strength, Hardness, Fatigue and Creep, Ferrous alloys Stainless steels, Maraging steel, Aging treatments, Aluminum alloys Alloy Designation and tempers, Al-Cu alloys, Principles of age hardening, Hardening mechanisms, Al-Li alloys, Al-Mg alloys, Nano crystalline

Aluminum alloys, Titanium alloys- - alloys, Superplasticity, Structural Titanium alloys, Intermetallics, Magnesium alloys, MgAl and MgAlZn alloys, Superalloys- Processing and properties of superalloys, Single-crystal superalloys, Environmental degradation and protective

coatings, Composites Metal Matrix composites, Polymer based composites, Ceramic based composites, Carbon Carbon composites. References

1. I.J Polmear, Light alloys. Elsevier publications 2. Roger C. Reed, The Superalloys- Fundamentals and Applications. Cambridge University

Press

3. Balram Gupta, Aerospace Materials. S.Chand publications 4. B Cantor, Hazel Assender and Patrick Grant, Aerospace Materials. Institute of Physics

Publishing

5. ASM Speciality Handbook, Heat Resistant Materials 6. F C Campbell, Manufacturing Technology for Aerospace Structural Materials. Elsevier

publications

7. Karl U. Kainer, Metal Matrix Composites. Wiley-VCH Publications

AE846 Energy Methods in Structural Mechanics (3-0-0) The variational principle and the derivation of the governing equations of static and dynamic systems.

Different energy methods : Rayleigh-Ritz, Galerkin etc. Application : Problems of stress analysis,

determination of deflection in determinate and indeterminate structures, stability and vibrations of

beams, columns and plates of constant and varying cross-sectional area. References

1. Langhaar, H.L., Energy Methods in Applied Mechanics, Krieger Publishing Co., 1989. 2. Reddy, J.N., Energy and Variational Methods in Applied Mechanics, Second Edition, John Wiley

and Sons, New York, 2002.

3. Tauchert, T.R., Energy Principles in Structural Mechanics, McGraw Hill Book Co., New York, 1974.

AE847 Molecular Dynamics and Materials Failure (3-0-0) Introduction: Materials deformation and fracture phenomena, strength of materials: flaws, defects, and a

perfect material, brittle vs. Ductile material behavior, the need for atomistic simulations. Applications

Basic atomistic modeling--classical molecular dynamics-- interatomic potential-numerical

implementation. visualisation. Atomistic elasticity- the virial stress and strain. Multiscale modeling and

simulation methods-Deformation and dynamical failure of brittle and ductile materials-applications

References 1. Atomistic Modeling of Materials Failure, Markus J. Buehler, Springer, 2008 2. Understanding Molecular Simulation: from Algorithms to Applications. Frenkel & Smit,

Academic Press, 2001.

3. The Art of Molecular Dynamics Simulation, D. C. Rapaport, Cambridge university press, 1997