COURSE SUMMARY
Course Title: 
Non-Destructive Testing
Course Code: 
15MEC271
Year Taught: 
2015
2016
2017
2018
Type: 
Elective
Degree: 
Undergraduate (UG)
School: 
School of Engineering
Campus: 
Bengaluru
Chennai
Coimbatore
Amritapuri

'Non-Destructive Testing' is a course offered in the B. Tech. in Mechanical Engineering program at School of Engineering, Amrita Vishwa Vidyapeetham.

Unit 1

Introduction: Non-Destructive testing - Relative Merits and Limitations - NDT vs Mechanical testing. Dry technique and Wet technique – Principle – Applications - Advantages and Limitations. Dyes - Developers – Cleaners. Fluorescent penetrant test. Liquid penetrant inspection.

Radiography: X-rays and Gamma rays, Properties of X-rays relevant to NDE - Absorption of rays - scattering. Types and use of Filters – screens - Geometric factors, Film type and Processing. Characteristics of films graininess, Density, Speed, Contrast. Characteristic curves. Characteristics of Gamma rays - fluoroscopy – X-ray – Radiography. Safety with X-rays and Gamma rays.

Unit 2

Ultrasonic Testing: Types of Ultrasonic Waves - Principles of wave propagation - Characteristics of ultrasonic waves - Attenuation. Production of ultrasonic waves - Couplants. Inspection methods - pulse echo, Transmission and Resonance techniques. Thickness measurement. Types of scanning. Test block - Reference blocks.

Unit 3

Techniques for Specific Purposes: Magnetic particle inspection - Principles – Applications - Magnetization methods - Magnetic particles, demagnetization. Eddy current testing - Thermal inspection Principle, Application - Instrumentation of Thermal Inspection. Holography. Acoustic Emission. Pressure and Leak Testing. Chemical Spot Testing. Spark Testing.

  • Cartz L. - ‘Non-Destructive testing’ - ASM International, Metals Park Ohio, US - 1995
  • Raj B., Jayakumar T., and Thavasimuthu M. - ‘Practical Non-Destructive Testing’ - Narosa, New Delhi - 1997
  • ASM Metals Hand Book, ‘Non-Destructive Evaluation and Quality Control’ - American Society of Metals, Metals Park Ohio, USA - 1989