NON DESTRUCTIVE TESTING INTRODUCTION SYLLABUS

NON DESTRUCTIVE TESTING INTRODUCTION

1. 20ME508 NON DESTRUCTIVE TESTING-NDT By Dr.K.P.Dhanabalakrishnan Prof & HoD Department of Aeronautical Engineering Hindusthan Institute of Technology

2. Course Objectives To introduce the concept of NDT among the students To understand various types of non-traditional practices available for manufacturing industry To provide the concept of evaluation methods of testing To provide knowledge to find the internal flaws in the material by NDT and take measures to eliminate them To provide knowledge of modern tools and software(s) for analyzing and solving real life problems

3. Lecture hours-3 per week Credit-3

4. After completion of this course …..Course Outcomes CO1-Apply the various NDT principles and testing methods CO2-Relate the applications of surface NDT methods CO3-Appraise the concepts of thermography and eddy current testing CO4-Exhibit knowledge about ultrasonic testing and acoustic emission testing CO5-Illustrate the basic knowledge of radiography

5. Text Books “Practical non-destructive testing” by Baldev Raj, T.Jayakumar and M.Thavasimuthu , Narosa Publishing House “Non-destructive testing techniques” by Ravi Prakash , New Age International Publishers

6. Reference Books “Non-destructive evaluation and quality control”, ASM Metals Handbook,Vol:17 “Introduction to non-destructive testing: a training guide “ by Paul E Mix, Wiley “Handbook of non-destructive evaluation” by Charles, J.Hellier , Mc Graw Hill ASNT, American Society for Non-Destructives Testing, NDT Handbook –Volumes : 1, 2, 3, 4, 5, 6 and 7

7. NDT ----This syllabus is about Unit 1-Overview of NDT----------9 Hours Unit 2-Surface NDE Methods------9 Hours Unit 3-Thermography and Eddy current testing (ET)----------9 Hours Unit 4- Ultrasonic Testing (UT) and acoustic emission (AE)----------9 Hours Unit 5- Radiography (RT)----------9 Hours Total-45 Hours

8. Unit 1-Overview of NDT NDT versus mechanical testing Overview of the NDT methods for the detection of manufacturing defects as well as material characterization Relative merits and limitations Various physical characteristics of materials and their applications in NDT Visual inspection-unaided and aided

9. Introduction Any product is designed to perform certain functions A customer prefers that product to perform well trouble free for a stipulated time period Trouble free performance is termed “reliability” Today a machine, vehicle etc comprises of various components All these components put together should be reliable to give a trouble free service These components should be free of defects A need to have methods by which defects in products can be examined without affecting their performance

10. NDT-Non-destructive Testing NDE-Non-destructive Evaluation NDI-Non-destructive Inspection Detecting and assessing the inhomogeneities and harmful defects without impairing the usefulness of materials, components or systems NDT plays an important role in quality control of the finished product Saving in time, cost and improvement in precision and reliability are the end result after using NDT

11. Non-Destructive Testing (NDT) is a discipline grouping together processes and techniques to identify characteristic differences, welding defects, and discontinuities, all while avoiding any harm to the original part. The use of non-destructive testing measurement techniques is essential for the industry.

12. Many methods are available Visual inspection is the simplest

13. Principal NDT methods 1.Visual or optical inspection 2. Dye penetrant testing 3.Magneticle particle testing 4.Eddy current testing 5.Radiographic testing and 6.Ultrasonic testing

14. Nuclear Defence and Aerospace Require use of high technology Emphasis has now shifted from detection of defects to sizing and characterization of defects

15. New NDT Methods Radiography Acoustic emission Thermography Strain sensing Microwave technique Holography etc