a) How you will differentiate Elastic region from Plastic region and Strain Hardening from Necking?
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- a) How you will differentiate Elastic region from Plastic region and Strain Hardening from Necking?
- b) Write a short note on Strength, Malleability and Tensile Strain.
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- On the stress-strain diagram of a steel bar, show and explain the following: proportional limit, yield stress, ultimate stress, yield strain, and modulus of elasticity.DISCUSS THE STRESS-STRAIN RELATIONSHIP SHOWN BELOW: (WRITE IN ENGINEERING LETTERING) Actual Rupture Point Ultimate Strength Elastic Limit Yield Point Rupture Point Proportionality Limit STEEL: Stress, o – Strain, e RelationsipDetermine the value of modulus of elasticity having stress value equal to 50 MPa and strain equal to 0.04 I
- Sketch the stress-strain curve and explain it in relation to the tensile test for steel bars.A high-yield-strength alloy steel bar with a rectangular cross section that has a width of 37.5 mm, a thickness of 6.25 mm, and a gauge length of 203 mm was tested in tension to rupture, according to ASTM E-8 method. The load and deformation data were as shown in Table Using a spreadsheet program, obtain the following:a. A plot of the stress–strain relationship. Label the axes and show units.b. A plot of the linear portion of the stress–strain relationship. Determine modulus of elasticity using the best-fit approach.c. Proportional limit.d. Yield stress.e. Ultimate strength.f. If the specimen is loaded to 155 kN only and then unloaded, what is the permanent deformation?g. In designing a typical structure made of this material, would you expect the stress applied in (f) safe? Why?Bending Stress Problems.
- In the tensile stress-strain curve below, label the following: elastic stage, plastic stage, necking stage, ultimate tensile strength, fracture point.please write detailsAn ASTM A615 grade 60 number 10 rebar with a gauge length of 8 in. was subjected to tension to fracture according to ASTM E-8 method. The load and deformation data were as shown in Table .Using a spreadsheet program, obtain the following:a. A plot of the stress–strain relationship. Label the axes and show units.b. A plot of the linear portion of the stress–strain relationship. Determine modulus of elasticity using the best-fit approach.c. Proportional limit.An alloy steel having a diameter of 0.45 in. extends 0.002 in. over a gage length of 2.2 in. due to a tensile load of 3900 lb. What is the modulus of elasticity of this alloy steel? A)29,010 ksi B)27,000 ksi C)30,000 ksi D)28,000 ksi
- Sketch a sample stress-strain behavior of steel and identify different levels of strength.A steel rod with length equal to 7.5 ft, has a diameter of 0.78 inches in quarter of its length and a diameter of 0.38 inches the rest. If it is subjected to a tensile load of 6,000 lbs, what will be the tótal deformation of the bar if it has a modulus of elasticity E= 28.5 x 10^6 psi. %3D O 0.1378 inches O 0.1338 inches O 0.1352 inches O 0.1364 inches O 0.1423 inchesStress calculation.