OBJECTIVE This course is designed to give an insight into the latest developments regarding smart materials and their use in structures. Further, this also deals with structures which can self adjust their stiffness with load.
UNIT I INTRODUCTION 9 Introduction to Smart Materials and Structures – Instrumented structures functions and response – Sensing systems – Self diagnosis – Signal processing consideration – Actuation systems and effectors.
UNIT II MEASURING TECHNIQUES 9 Strain Measuring Techniques using Electrical strain gauges, Types – Resistance – Capacitance – Inductance – Wheatstone bridges – Pressure transducers – Load cells – Temperature Compensation – Strain Rosettes.
UNIT III SENSORS 9 Sensing Technology – Types of Sensors – Physical Measurement using Piezo Electric Strain measurement – Inductively Read Transducers – The LVOT – Fiber optic Techniques. Chemical and BioChemical sensing in structural Assessment – Absorptive chemical sensors – Spectroscopes – Fibre Optic Chemical Sensing Systems and Distributed measurement.
UNIT IV ACTUATORS 9 Actuator Techniques – Actuator and actuator materials – Piezoelectric and Electrostrictive Material – Magnetostructure Material – Shape Memory Alloys – Electro orheological Fluids– Electro magnetic actuation – Role of actuators and Actuator Materials.
UNIT V SIGNAL PROCESSING AND CONTROL SYSTEMS 9 Data Acquisition and Processing – Signal Processing and Control for Smart Structures – Sensors as Geometrical Processors – Signal Processing – Control System – Linear and NonLinear. TOTAL: 45 PERIODS TEXT BOOKS 1. Brain Culshaw – Smart Structure and Materials Artech House – Borton. London1996.
REFERENCES 1. L. S. Srinath – Experimental Stress Analysis – Tata McGrawHill, 1998. 2. J. W. Dally & W. F. Riley – Experimental Stress Analysis – Tata McGrawHill, 1998. 101874 FINITE ELEMENT TECHNIQUES L T P C 3 0 0 3 OBJECTIVE At the end of this course the student shall have a basic knowledge of finite element method and shall be able to analyse linear elastic structures, that he has studied about in core courses, using finite element method.
UNIT I INTRODUCTION – VARIATIONAL FORMULATION 9 General field problems in Engineering – Modelling – Discrete and Continuous models – Characteristics – Difficulties involved in solution – The relevance and place of the finite element method – Historical comments – Basic concept of FEM, Boundary and initial value problems – Gradient and divergence theorems – Functionals – Variational calculus Variational formulation of VBPS. The method of weighted residuals – The Ritz method.
UNIT II Finite Element Analysis of one Dimensional Problems 10 One dimensional second order equations – discretisation of domain into elements – Generalised coordinates approach – derivation of elements equations – assembly of elements equations – imposition of boundary conditions – solution of equations – Cholesky method – Post processing – Extension of the method to fourth order equations and their solutions – time dependant problems and their solutions – example from heat transfer, fluid flow and solid mechanics.
UNIT III Finite Element Analysis of Two Dimensional Problems 10 Second order equation involving a scalarvalued function – model equation – Variational formulation – Finite element formulation through generalised coordinates approach – Triangular elements and quadrilateral elements – convergence criteria for chosen models – Interpolation functions – Elements matrices and vectors – Assembly of element matrices – boundary conditions – solution techniques.
UNIT IV Isoparametric Elements and formulation 8 Natural coordinates in 1, 2 and 3 dimensions – use of area coordinates for triangular elements in  2 dimensional problems – Isoparametric elements in 1,2 and 3 dimensional Largrangean and serendipity elements – Formulations of elements equations in one and two dimensions  Numerical integration.
UNIT V Applications to field problems in two dimensionalS 8 Equations of elasticity – plane elasticity problems – axisymmetric problems in elasticity – Bending of elastic plates – Time dependent problems in elasticity – Heat – transfer in two dimensions – incompressible fluid flow TOTAL: 45 PERIODS
TEXT BOOK 1. Chandrupatla, T.R., and Belegundu, A.D., “Introduction to Finite Element in Engineering”, Third Edition, Prentice Hall, India, 2003.
REFERENCES 1. J.N.Reddy, “An Introduction to Finite Element Method”, McGrawHill, Intl. Student Edition, 1985. 2. Zienkiewics, “The finite element method, Basic formulation and linear problems”, Vol.1, 4/e, McGrawHill, Book Co. 3. S.S.Rao, “The Finite Element Method in Engineering”, Pergaman Press, 2003. 4. C.S.Desai and J.F.Abel, “Introduction to the Finite Element Method”, Affiliated East West Press, 1972. 101875 REPAIR AND REHABILITATION OF STRUCTURES L T P C 3 0 0 3 OBJECTIVE
To get the knowledge on quality of concrete, durability aspects, causes of deterioration, assessment of distressed structures, repairing of structures and demolition procedures.
UNIT I MAINTENANCE AND REPAIR STRATEGIES 9
Maintenance, repair and rehabilitation, Facets of Maintenance, importance of Maintenance various aspects of Inspection, Assessment procedure for evaluating a damaged structure, causes of deterioration
UNIT II SERVICEABILITY AND DURABILITY OF CONCRETE 11
Quality assurance for concrete construction concrete properties strength, permeability, thermal properties and cracking.  Effects due to climate, temperature, chemicals, corrosion  design and construction errors  Effects of cover thickness and cracking
UNIT III MATERIALS FOR REPAIR 9
Special concretes and mortar, concrete chemicals, special elements for accelerated strength gain, Expansive cement, polymer concrete, sulphur infiltrated concrete, ferro cement, Fibre reinforced concrete.
UNIT IV TECHNIQUES FOR REPAIR AND DEMOLITION 8
Rust eliminators and polymers coating for rebars during repair, foamed concrete, mortar and dry pack, vacuum concrete, Gunite and Shotcrete, Epoxy injection, Mortar repair for cracks, shoring and underpinning. Methods of corrosion protection, corrosion inhibitors, corrosion resistant steels, coatings and cathodic protection. Engineered demolition techniques for dilapidated structures  case studies.
UNIT V REPAIRS, REHABILITATION AND RETROFITTING OF STRUCTURES 8 Repairs to overcome low member strength, Deflection, Cracking, Chemical disruption, weathering corrosion, wear, fire, leakage and marine exposure.
TOTAL: 45 PERIODS TEXT BOOKS 1. Denison Campbell, Allen and Harold Roper, Concrete Structures, Materials, Maintenance and Repair, Longman Scientific and Technical UK, 1991. 2. R.T.Allen and S.C.Edwards, Repair of Concrete Structures, Blakie and Sons, UK, 1987
REFERENCES 1. M.S.Shetty, Concrete Technology  Theory and Practice, S.Chand and Company, New Delhi, 1992. 2. Santhakumar, A.R., Training Course notes on Damage Assessment and repair in Low Cost Housing , "RHDCNBO" Anna University, July 1992. 3. Raikar, R.N., Learning from failures  Deficiencies in Design, Construction and Service  R&D Centre (SDCPL), Raikar Bhavan, Bombay, 1987. 4. N.Palaniappan, Estate Management, Anna Institute of Management, Chennai, 1992. 5. Lakshmipathy, M. etal. Lecture notes of Workshop on "Repairs and Rehabilitation of Structures", 29  30^{th} October 1999.
