A Brinell test is performed on a steel using a 1.42 in. diameter indenter with a load of 67925 lbs. A 0.8 in. Determine in indentation was measured on the surface of the steel. Determine: a) HBN (psi); b) tensile strength (psi)
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A Brinell test is performed on a steel using a 1.42 in. diameter indenter with a load of 67925 lbs. A 0.8 in. Determine in indentation was measured on the surface of the steel. Determine: a) HBN (psi); b) tensile strength (psi)
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- The results of a tensile test are shown in Table 1.5.2. The test was performed on a metal specimen with a circular cross section. The diameter was 3 8 inch and the gage length (The length over which the elongation is measured) was 2 inches. a. Use the data in Table 1.5.2 to produce a table of stress and strain values. b. Plot the stress-strain data and draw a best-fit curve. c. Compute the, modulus of elasticity from the initial slope of the curve. d. Estimate the yield stress.The data in Table 1.5.3 were obtained from a tensile test of a metal specimen with a rectangular cross section of 0.2011in.2 in area and a gage length (the length over which the elongation is measured) of 2.000 inches. The specimen was not loaded to failure. a. Generate a table of stress and strain values. b. Plot these values and draw a best-fit line to obtain a stress-strain curve. c. Determine the modulus of elasticity from the slope of the linear portion of the curve. d. Estimate the value of the proportional limit. e. Use the 0.2 offset method to determine the yield stress.A tensile test was performed on a metal specimen having a circular cross section with a diameter 0. 510 inch. For each increment of load applied, the strain was directly determined by means of a strain gage attached to the specimen. The results are, shown in Table: 1.5.1. a. Prepare a table of stress and strain. b. Plot these data to obtain a stress-strain curve. Do not connect the data points; draw a best-fit straight line through them. c. Determine the modulus of elasticity as the slope of the best-fit line.
- A tensile test was performed on a metal specimen having a circular cross section with a diameter of 1 2 inch. The gage length (the length over which the elongation is measured) is 2 inches. For a load 13.5 kips, the elongation was 4.6610 3 inches. If the load is assumed to be within the linear elastic rang: of the material, determine the modulus of elasticity.A steel specimen is tested in tension. The specimen is 25 mm wide by 5 mm thick in the test region. By monitoring the load dial of the testing machine, it was found that the specimen yielded at a load of 55 kN and fractured at 78 kN.a. Determine the tensile stresses at yield and at fracture.b. Estimate how much elongation would occur at 60% of the yield stress in a 50-mm gauge length.In a standard tensile test, an aluminum rod of 20-mm diameter is subjected to a tension force of P- 30 kN. Knowing that E- 70 GPa, and the change in diameter of the rod- 0.00955 mm, determine the poissons' ratio v. 20n diateter gage length-150 0.33 O 0.6 0.29 O 0.35
- A No. 10 steel rebar is tested in tension. By monitoring the load reading of the testing machine, it was found that the specimen yielded at a load of 41,600 lb and fractured at 48,300 lb.a. Determine the tensile stresses at yield and at fracture.b. Estimate how much increase in length would occur at 70% of the yield stress in a 2-in. gauge length.Q1: Find the diameter of indentation for steel with the • :following information ** Brinell hardness test = 150 ** Diameter ball = 5 mm Q2 / find the Vickers hardness number for steel with the following information * load applied=100 kg * indentation =0.93 mmA No. 8 steel rebar is tested in tension. By monitoring the load reading of the testing machine, it was found that the specimen yielded at a load of 60,000 lbs and fractured at 75,000 lbs. Determine the following: a. Tensile stresses at yield and at fracture. b. Estimate how much increase in length would occur at 75% of the yield stress in a 16-in. gauge length.
- Zhpe Outine lece Select 834 Anange Oick Create wnd Shane Adobe PO Adite A SydesO upe iects tere Ding teting 1. (a) A tension test was performed on a magnesium alloy specimen having a diameter 12 mm and gauge 50 mm. The resulting stress-strain diagram is shown figure. Determine the approximate modulus of elastic and the yield strength of the alloy using the 0.2% offset method. (MPa) 280 245 (b) A tension test was performed on a magnesium specimen having a diameter 12 mm and gauge 1ength of 50 mm. The resulting stress-strain diagram is shown in the figure. If the specimen is stressed to 210 MPa and unloaded, determine the permanent elongation of the 210 175 140 specimen 105 70 35 (me 0.002 0.004 0.006 0.008 0.010 ANatesL b F What is the change in length (L) of the titanium bar (E = 16.5E6 psi) given: L = 36 in., b = 3 in., h = 0.25 in, and F = 3 kips Answer to above question is 8.72E-3 in, the shear modulus for the bar is 6.145E6 psi, poisons ratio is 0.343. My question is what is the strain (in macrostrain) in the bar in a direction perpendicular to the direction of the applied force? (Answer is 82.8, I need to understand how to reach this answer.)A test piece is cut from a brass bar and subjected to a tensile test. With a load of 6.4 kN the test piece, ofdiameter 11.28 mm, extends by 0.04 mm over a gauge length of 50 mm. Determine:(i) the stress, (ii) the strain, (iii) the modulus of elasticity.(b) A spacer is turned from the same bar. The spacer has a diameter of 28 mm and a length of 250 mm, bothmeasurements being made at 20~ The temperature of the spacer is then increased to 100~ the natural expansionbeing entirely prevented. Taking the coefficient of linear expansion to be 18 x 10-6/~ determine:(i) the stress in the spacer, (ii) the compressive load on the spacer.rC.G.] [64 MN/m 2, 0.0008, 80 GN/m 2, 115.2 MN/m 2, 71 kN.] Could you please answer the parts after the first three? If you use * could you please explain what you mean by it! Thank You :)