4. What useful informations are obtained from the tensile test of a ductile material? 5. What do you mean by factor of safety? 6. List the important factors that influence the magnitude of factor of safety. 7. What is meant by working stress and how it is calculated from the ultimate stress or yield stress of a material? What will be the factor of safety in each case for different types of loading? 8. Describe the procedure for finding out the stresses in a composite bar. 9. Explain the difference between linear and lateral strain.

4. What useful informations are obtained from the tensile test of a ductile material? 5. What do you mean by factor of safety? 6. List the important factors that influence the magnitude of factor of safety. 7. What is meant by working stress and how it is calculated from the ultimate stress or yield stress of a material? What will be the factor of safety in each case for different types of loading? 8. Describe the procedure for finding out the stresses in a composite bar. 9. Explain the difference between linear and lateral strain.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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QUESTIONS 1. Define the terms load, stress and strain. Discuss the various types of stresses and strain. 2. What is the difference between modulus of elasticity and modulus of rigidity? 3. Explain clearly the bearing stress developed at the area of contact between two members. 4. What useful informations are obtained from the tensile test of a ductile material? 5. What do you mean by factor of safety? 6. List the important factors that influence the magnitude of factor of safety. 7. What is meant by working stress and how it is calculated from the ultimate stress or yield stress of a material? What will be the factor of safety in each case for different types of loading? 8. Describe the procedure for finding out the stresses in a composite bar. 9. Explain the difference between linear and lateral strain.
1. Define the terms load , stress and strain. Discuss the various types of stresses and strain. 2. What is the difference between modulus of elasticity and modulus of rigidity? 3. Explain clearly the bearing stress developed at the area of contact between two members. 4. What useful informations are obtained from the tensile test of a ductile material? 5. What do you mean by factor of safety? 6. List the important factors that influence the magnitude of factor of safety. What is meant by working stress and how it is calculated from the ultimate stress or yield stress of a material? What will be the factor of safety in each case for different types of loading? 8. Describe the procedure for finding out the stresses in a composite bar. 7. 9. Explain the difference between linear and lateral strain. 10. Define the following: (a) Poisson's ratio, (b) Volumetric strain, and (c) Bulk modulus 11. Derive an expression for the impact stress induced due to a falling load. 12. Write short notes on…
The diagram shows a plot from an uniaxial test of an unknown metal. The uniaxial tensile test specimen had an original cross-sectional radius of 3.0 mm, an initial gauge length of 42 mm. At failure, the cross-sectional radius was 1.2 mm. Determine the yield strength of the unknown metal and the true stress at failure.
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Given: Stress strain curve of 10 mm diameter and 1 m long ductile stainless-steel rod. 900 800 700 600 500 Mild 400 Stainless 300 200 - 100 0.1 0.2 0.3 0.4 Strain 0.5 0.6 0.7 Draw stress-strain curve for compression here 1. Label all points of significance on the stress strain curve 2. Draw the stress-strain curve for the rod in compression and label all points of significance. 3. What is the Young's modulus in tension? Assume .001 strain at 500 MPa 4. What is its Youngʻs modulus in compression? 5. What is the tensile yield strength of this rod using the 0.2% offset criteria? 6. What is the compressive yield strength of the rod? 7. What is force required to yield the rod?. Show calculation: 8. What is the UTS of this rod?. 9. What is the force required to break the rod? Show calculation: 10. What will be UCS of the rod? Stress (MPa)
This problem I am struggling to get started because I need to 1- find the point of interest to then 2- find the state of stresses and 3- then find principal stresses, for finally then finding 4- Tresca and Von Mises safety factors. The main thing for me here is that I am not sure how to go on about finding the point of interest, by trial and error? what should I be looking out for? Numbers 3-4 I feel more comfortable with but if this problem is too long I can make it into 2 submissions as well. I just need some guidance with this.
A sample test rod made of a ferrous material of 0.5 in. diameter was tested for tensile strength with the gauge length of 2.5 in. The following observations were recorded: Final length = 3.15 in; Final diameter = 0.275 in; Yield load = 7650 lb. and Ultimate load = 10375 lb. (a) Calculate: 1. yield stress, 2. ultimate tensile stress, 3. percentage reduction in area, and 4. percentage elongation. (b) What specific material, if any, is similar to this tested rod? Refer to AT7 and AT8. (c) This same material is then used as a tension member 55 inches long and is subjected to a maximum load of 6000 lb, repeated but not reversed. (d) Solve part (c) if the total elongation is not to exceed 0.025 in.? 1. %3D
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Which of the following could not be obtained directly from the stress-strain diagram from a tensile failure test? Select all which apply. Modulus of Elasticity Tensile Yield Strenth Ultimate Strength Coefficient of Thermal Expansion
Draw a typical stress vs strain tensile test curve for the following material and label the axis. A typical brittle material subjected to a tensile stress that has been applied to the material till the sample breaks. 1- label the axis and draw the curve for a brittle material. 2- indicate the maximum strength of the material. 3- show on the portion of the curve where young's modulus can be calculated.
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