Exam Details
| Subject | Experimental Stress Analysis | |
| Paper | ||
| Exam / Course | Diploma in Mechanical Engineering (DMEVI)& B.Tech. MECHANICAL ENGINEERING 1-4 (BTMEVI) | |
| Department | School of Engineering & Technology (SOET) | |
| Organization | indira gandhi national open university | |
| Position | ||
| Exam Date | ||
| City, State | new delhi, |
Question Paper
1. In a strain gauge Wheatstone bridge shown in
the Figure 1 given below, the four limbs were: R1=99·75 0 (strain gauge resistance)
R2=Variable
R3=1000
R4=100000 src='./qimages/9156-1.jpg'>
What is the value of variable resistance R2 at initial balance with zero strain? When .the bridge was balanced after the strain was applied, this resistance increased to 9997 Q. Make calculations for the change in resistance of the gauge and the strain applied, if the gauge factor is 2·0.
2. 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.
3. Explain, in detail, the compensation techniques used in photoelasticity.
4. What are the various types of mechanical strain gauges Explain with neat sketch, the working of Huggenberger tensometer in detail.
5. What is optical strain gauge Explain anyone optical strain gauge with the help of a neat diagram.
6.(a) Describe the features of 'Isochromatic' and 'Isoclinic' fringe patterns. Describe the 'shear difference' technique to seperate the principal stress in case of stress analysis using photoelasticity method.
7.(a) Write the equations of generalized Hooke's law.
Describe the working of wave plates in brief.
Describe the Grid method of strain analysis in brief.
Illustrate the Mohr's circle for general state of stress
8. What are the different types of electrical strain gauges Describe a capacitance strain gauge with a neat sketch. Give its uses and limitations.
9. At a point inside a body, the displacement field is linear and is given as src='./qimages/9156-9.jpg'>
Calculate the various components of strain.
10. Write short notes on any two of the following
Circular Polariscope
Oblique Incidence Methods
Tardy's Compensation Method
the Figure 1 given below, the four limbs were: R1=99·75 0 (strain gauge resistance)
R2=Variable
R3=1000
R4=100000 src='./qimages/9156-1.jpg'>
What is the value of variable resistance R2 at initial balance with zero strain? When .the bridge was balanced after the strain was applied, this resistance increased to 9997 Q. Make calculations for the change in resistance of the gauge and the strain applied, if the gauge factor is 2·0.
2. 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.
3. Explain, in detail, the compensation techniques used in photoelasticity.
4. What are the various types of mechanical strain gauges Explain with neat sketch, the working of Huggenberger tensometer in detail.
5. What is optical strain gauge Explain anyone optical strain gauge with the help of a neat diagram.
6.(a) Describe the features of 'Isochromatic' and 'Isoclinic' fringe patterns. Describe the 'shear difference' technique to seperate the principal stress in case of stress analysis using photoelasticity method.
7.(a) Write the equations of generalized Hooke's law.
Describe the working of wave plates in brief.
Describe the Grid method of strain analysis in brief.
Illustrate the Mohr's circle for general state of stress
8. What are the different types of electrical strain gauges Describe a capacitance strain gauge with a neat sketch. Give its uses and limitations.
9. At a point inside a body, the displacement field is linear and is given as src='./qimages/9156-9.jpg'>
Calculate the various components of strain.
10. Write short notes on any two of the following
Circular Polariscope
Oblique Incidence Methods
Tardy's Compensation Method
Other Question Papers
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