The document outlines a course on Non-Destructive Testing (NDT) aimed at introducing students to various NDT principles and testing methods applicable in the manufacturing industry. It details course objectives, outcomes, and covers multiple NDT techniques such as ultrasonic testing, thermography, and radiography. The syllabus consists of five units focusing on different aspects of NDT over a total of 45 hours, emphasizing the importance of NDT in quality control and reliability assessment.

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.

13. • Many methods are available
• Visual inspection is the simplest

14. 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

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

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