A test bar 12.8 mm in diameter and 50 mm initial length is loaded elastically with 16000 kgf and is elongated 0.36 mm. Its diameter is 12.78 mm under load. Calculate, the modulus of elasticity and Poisson’s ratio of the material.
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A test bar 12.8 mm in diameter and 50 mm initial length is loaded elastically with...
A test bar of a metal with 12.83 mm in diameter and 50 mm gage length is loaded elastically with 156 kN tensile load and is stretched by 0.356 mm. Its diameter is 12.80 mm under load. What is the elastic modulus of the metal?
A bar of metal (length L =200 mm, diameter d=10 mm) is loaded axially by a tensile force P = 12 kN. If the bar elongates by 0.3 mm, what is the decrease in diameter d? What is the value of modulus of elasticity? Consider, v=0.30.
A tensile test specimen has a gage length = 50 mm and diameter = 20 mm. Yielding occurs at a load of 137900. The corresponding gage length = 51 mm, which is the 0.2 percent yield point. The maximum load of 258100 N is reached at a gage length = 62.8 mm. Determine (a) yield strength, (b) modulus of elasticity, and (c) tensile strength.
A bar of 20 mm diameter is made of a material having a modulus of elasticity of E = 82 GPa and a modulus of rigidity of G = 68 GPa. If it is loaded axially with a compressive force of 100 kN, determine the absolute change in its diameter.
A bar of 20 mm diameter is made of a material having a modulus of elasticity of E = 84 GPa and a modulus of rigidity of G = 66 GPa. If it is loaded axially with a compressive force of 90 kN, determine the absolute change in its diameter.
3) A tensile test is performed on a brass specimen 10 mm in diameter and a length of 50 mm. When the tensile load reaches 20 kN, the material elongates 0.122 mm. What is the brass' modulus of elasticity E?
A cylindrical bar of metal having a diameter of 16.5 mm and a length of 183 mm is deformed elastically in tension with a force of 42000 N. Given that the elastic modulus and Poisson's ratio of the metal are 67.1 GPa and 0.34, respectively, determine the following:(a) The amount by which this specimen will elongate (in mm) in the direction of the applied stress. (b) The change in diameter of the specimen (in mm). Indicate an increase in diameter...
A cylindrical bar of metal having a diameter of 19.0 mm and a length of 207 mm is deformed elastically in tension with a force of 53700 N. Given that the elastic modulus and Poisson's ratio of the metal are 67.6 GPa and 0.34, respectively, determine the following: (a) The amount by which this specimen will elongate in the direction of the applied stress.
Problem 1: A round bar with a diameter of 29 mm, and 4880 mm in length was under tensile test to determine the mechanical properties of the material. The following table shows the load versus strain data collected from the testing machine and a strain gauge applied on the bar in the loading direction. The measured percentage elongations were 19.4 % and 14.2 % on gauge lengths of 100 mm and 200 mm respectively. Assume: the elongations include the necking:...
3 نقطة (نقاط) السؤال 1 A bar of 20 mm diameter is made of a material having a modulus of elasticity of E= 89 GPa and a modulus of rigidity of G = 61 GPa. If it is loaded axially with a compressive force of 65 kN, determine the absolute .change in its diameter التالي