A steel bar of 500 mm length is under tensile stress of 100 N/mm?. If the modulus of elasticity is 2 x 10" N/m?, then the total elongation of the bar will be
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- 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 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.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 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 mild steel specimen originally 300 mm long is pulled in tension with a stress of 500 MPa. If the deformation is entirely elastic, calculate the resultant elongation? The modulus of elasticity of steel is 200 GPa.A rod with a length of 1 m and a radius of 20 mm is made of high-strength steel.The rod is subjected to a torque T, which produces a shear stress below the proportional limit. If the cross section at one end is rotated 45 degrees in relation to the other end, and the shear modulus G of the material is 90 GPa, what is the amount of applied torque?
- A 20-ft wrought iron bar that is ½ inch in diameter is subjected to a tensile force of 3 kips. Determine the a) stress in psi, b) elongation of the bar in inches, and c) strain. The modulus of elasticity of wrought iron E = 29 x 103 ksi.A 2-m long steel rod, 10-mm in diameter, is carrying a load of 20 kN. (a) what is the axial stress developed in the rod, in kN/m^2. Is the tensile or compressive? (b) compute the amount of elongation (in mm) in the steel rod caused by the applied load, (c) what will be the elongation (in mm) in the steel rod if the weight of the steel rod is included? Use density of the steel to be 7860 kg/m^3. Young's modulus of elasticity, E=200GPa. W=mg. Draw free body diagram of the steel rod.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=0.3
- DURING THE STRESS-STRAIN TEST, THE UNIT DEFORMATION AT A STRESSOF 30 MPa WAS OBSERVED TO BE 110 x 10-6 mm/mm AND AT A STRESS0F 130 MPa IT WAS 520 X 10-6 mm/mm. IF THE PROPORTIONAL LIMITWAS 250 MPa, WHAT IS THE MODULUS OF ELASTICITY? WHAT IS THESTRAIN CORRESPONDING TO A STRESS OF 150 MPa?Consider a rectangular specimen of aluminium has a dimension of 10 ?? × 12.7 ?? is pulled in tension with 35500 N. Calculate the resulting strain. Given the modulus of elasticity is 69 × 103??? and assume that the deformation is elastic.A steel rod with a cross sectional area of 180 mm² is stretched between two fixed points. The Tensile load at 25 degrees is 3600 N. Assume α= 11.7 x10^-6 mm/(mm –degree celsius) and E = 200 GPA. Calculate the temperature at which the stress will be zero. Your answer