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4. Compressive strength testing performed on a concrete specimen at 28 days revealed a failure load...
Q. No.5: A concrete cylinder having a dimeter of 4 in. was tested in compression at...
Q. No.5: A concrete cylinder having a dimeter of 4 in. was tested in compression at concrete age of 28 days to find the compressive strength of concrete. The cylinder failed at a peak load of 91,280 lb. For this concrete determine: o Compressive strength of concrete e) o Modulus of elasticity (Ee o Modulus of rupture
. Describe the response of concrete subjected to cyclic loading with the help of a graph. (Note: ...
. Describe the response of concrete subjected to cyclic loading with the help of a graph. (Note: Please plot a graph and then describe the effect of cyclic loading on strength and modulus of elasticity of concrete. You will not get credit if you cut and paste the graph from class notes). 2. Discuss why testing of concrete for direct tensile strength is difficult to achieve. What indirect test methods have been developed to assess the tensile strength of concrete?...
It is desired to evaluate the tensile properties of an aluminum alloy. A tensile test is...
It is desired to evaluate the tensile properties of an aluminum alloy. A tensile test is performed using a standard cylindrical tensile specimen with a diameter of 12.8 mm and a gauge length of 50.800 mm. The gage length and final diameter of the sample are measured after the sample is removed from the testing machine. The gage length and the diameter of the necked region after the specimen was removed from the testing machine are 60 mm and 9...
A steel cable with a yield strength of 35 ksi is used to support a load...
A steel cable with a yield strength of 35 ksi is used to support a load of 10000 lb. Select the diameter of the cable using a factor of safety of 2.5. A standard steel specimen having a diameter of 0.502 in, and a gauge length of 2.00 in is used in a tension test. At 6000 lb the deformation is recorded as 0.00212 in. The load at the yield point is 7130 lb and the ultimate load is 11520...
Pageく ) of Problem3 (45 pts. A cylindrical specimen of asphalt concrete with a 4-inch diameter...
Pageく ) of Problem3 (45 pts. A cylindrical specimen of asphalt concrete with a 4-inch diameter and a 6- inch height is subjected to an axial compressive static load of 150 lb for 1 hour, after which the load is removed. The test was performed at a temperature of 100°F. Plots of stress versus time and strain versus time during the loading are given below. Is this material elastic or viscous? Explain. (10 pts.) How do you describe the mechanical...
Problem #1 A cylindrical rod of copper (E 110 GPa) having a yield strength of 240...
Problem #1 A cylindrical rod of copper (E 110 GPa) having a yield strength of 240 MPa is to be subjected to a load of 6660 N. If the length of the rod is 380 mm, what must the diameter be to allow an elongation of 0.50 mm? A cylindrical specimen of some alloy 8 mm in diameter is stressed elastically in tension. A force of 15,700 N produces a reduction in the specimen diameter of 5 10-3 mm. Compute...
Q. No.5: A concrete cylinder having a dimeter of 4 in. was tested in compression at concrete age of 28 days to find the compressive strength of concrete. The cylinder failed at a peak load of 91,280 lb. For this concrete determine: o Compressive strength of concrete e) o Modulus of elasticity (Ee o Modulus of rupture
. Describe the response of concrete subjected to cyclic loading with the help of a graph. (Note: Please plot a graph and then describe the effect of cyclic loading on strength and modulus of elasticity of concrete. You will not get credit if you cut and paste the graph from class notes). 2. Discuss why testing of concrete for direct tensile strength is difficult to achieve. What indirect test methods have been developed to assess the tensile strength of concrete?...
A steel cable with a yield strength of 35 ksi is used to support a load of 10000 lb. Select the diameter of the cable using a factor of safety of 2.5. A standard steel specimen having a diameter of 0.502 in, and a gauge length of 2.00 in is used in a tension test. At 6000 lb the deformation is recorded as 0.00212 in. The load at the yield point is 7130 lb and the ultimate load is 11520...
Pageく ) of Problem3 (45 pts. A cylindrical specimen of asphalt concrete with a 4-inch diameter and a 6- inch height is subjected to an axial compressive static load of 150 lb for 1 hour, after which the load is removed. The test was performed at a temperature of 100°F. Plots of stress versus time and strain versus time during the loading are given below. Is this material elastic or viscous? Explain. (10 pts.) How do you describe the mechanical...
Problem #1 A cylindrical rod of copper (E 110 GPa) having a yield strength of 240 MPa is to be subjected to a load of 6660 N. If the length of the rod is 380 mm, what must the diameter be to allow an elongation of 0.50 mm? A cylindrical specimen of some alloy 8 mm in diameter is stressed elastically in tension. A force of 15,700 N produces a reduction in the specimen diameter of 5 10-3 mm. Compute...
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