Anna University
AE2352 Experimental Stress Analysis - Important Questions
UNIT - I
1. Explain in detail the Principles of Measurements.
2. Write short notes on:
(a) Accuracy (4)
(b) Sensitivity (4)
(c) Range (4)
UNIT - II
1. Write a short account of the various types of strain gauges. Give their special advantages and limitations.
2. What are the basic characteristics of a strain gauge? Which factors should be
considered
3. What are the various types of Mechanical strain gauges? Explain Huggenberger tensometer in detail.
4. What are the various types of optical strain gauges? Explain the Tuckerman gauge in detail.
5. Explain the construction and working of Acoustical strain gauge.
6. What are the different types of electrical strain gauges? Describe a capacitance strain gauge and give its uses and limitations.
UNIT - III
1. Write short notes on the following :
(i) Electromagnetic strain gauge (6)
(ii) Weldable strain gauge (6)
2. What is the necessity of temperature compensation? How this can be achieved?
3. What do you understand by a strain rosette? What are the different types of strain rosette configurations currently in use? Discuss their uses and limitations.
4. Discuss the various methods of calibrating a strain gauge.
5. What are the essential requirements of a balancing technique? Discuss the different ways in which you can balance a bridge.
6. Discuss the associated instrumentation for measuring
(a) Strain strains
(b) Dynamic strains
UNIT - IV
1. Sketch a circular polariscope. Explain the effects of a stressed model and the fringes obtained in it
2. Sketch a plain polariscope. Explain the effects of a stressed model and the fringes obtained in it.
3. Describe in detail how fringe sharpening is obtained using partial mirrors.
4. Explain any two compensation techniques used in photo elasticity.
5. What are the important properties of an ideal photoelastic material? Discuss the important photoelastic materials.
6. Explain the Tardy’s compensation method in detail. Why this method is preferred over other methods?
UNIT - V
1. State the uses and advantages of Non-Destructive Testing procedures. Explain in detail any one of the NDT procedure for evaluating a given specimen.
2. Write short notes on the following:
a. Eddy Current Testing
b. Radiography
3. Explain the process of Magnetic particle inspection with a neat sketch.
4. With a suitable sketch explain the process of Fluorescent penetrant technique.
5. Explain the brittle coating method in brief. What are the advantages and limitations of this method?
6. Briefly explain the following which are used in the experimental analysis:
a. Fibre – optic sensors
b. Thermography
c. C – Scan