1.12 Tensile stress of 500MPA is applied on a steel rod of length 300mm. Determine the elongation in the rod if the modulus of elasticity of steel is 200GPA and the stress does not exceed the yield strength.
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- 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.Compare the engineering and true secant elastic moduli for the natural rubber in Example Problem 6.2 at an engineering strain of 6.0. Assume that the deformation is all elastic.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.
- 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.7. A steel rod of diameter 10 mm carries an axial load of 10 kN. Consider the modulus of elasticity and Poisson's ratio of 20 GPa and 0.30 respectively. Calculate: a) the normal stress in the rod. b) the lateral strain in the rod. c) the change in diameter of the rod when the load is appliedBars (1) are made of a polyimide plastic that has an elastic modulus of 3.8 GPa. Bar (2) is a nylon material that has an elastic modulus of 1.9 GPa. Each bar has a cross-sectional area of 900 mm2. Using L = 395 mm and Δ = 4.6 mm, what magnitude of load P will cause the normal stress in each bar to be the same value?
- A hollow cylinder with an OD of 100mm and an ID of 30mm, supports a load of 100kN. What is the compressive stress in MPa?.............I know stress=p/a , but I am not sure how to find the height in order to calculate the area or if there would be another way of doing it ?A hollow steel tube with an inside diameter of 110 mm must carry a tensile load of 404 kN. Determine the tube's outside diameter (mm) if the stress is limited to 122 mPa. The final answer should have 2 decimal placesA steel flat 10 cm wide and 2 cm thick is bent into a circular arc of 50m radius.Find the maximum intensity of stress induced. Take E = 2.05 * 10 ^ 5 N/mm².
- A 25m steel rod with diameter of 20 mm is secured between rigid supports at both ends. If there is no stress at a temperature of 20oC, E = 200GPa.6. Compute the stress when the temperature drops to 0oC, if it has a coefficient of thermal expansion of 0.0000117 m/moC. 7. Compute the strain of the rod if the rod supports yield and move together a distance of 0.5mm as temperature drops.8. Compute the stress in the rod if the supports yield and move together a distance of 0.5mm as the temperature drops.A steel bar 25cm long of rectangular cross section 25mm by 50mm is subjected to a uniform tensile stress of 200N/m^2 along it's length.find the changes in dimension.E=205000N/mm^2, poison ratio=0.3a steel shaft is subjected to an end thrust producing a stress of 90 mph and the maximum shear stress on the surface arising from the origin is 60 mpa the yield point of the material is simple tension was found to be 300 mpa. calculate the f.o.s of the shaft according to maximum shear stress and maximum distortion energy theory