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Answer- Finite life
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If a component is operating at a applied fully reversible stress that is higher than the...
2. A component has a fluctuating stress of σ() = 120MPa + 120MPa sin(t). The stress is due to ben...
2. A component has a fluctuating stress of σ() = 120MPa + 120MPa sin(t). The stress is due to bending and the material is AlSl 1060 HR. There is a groove cut in the part such that Kt=1.8. The minimum shaft diameter is 2cm and the notch radius is 3mm. a. Determine the endurance limit and all associated Marin factors b. Determine the factor of safety for infinite life using the Goodman Failure c. If the factor of safety is...
2. A component has a fluctuating stress of σ() = 120MPa + 120MPa sin(t). The stress...
2. A component has a fluctuating stress of σ() = 120MPa + 120MPa sin(t). The stress is due to bending and the material is AlSl 1060 HR. There is a groove cut in the part such that Kt=1.8. The minimum shaft diameter is 2cm and the notch radius is 3mm. a. Determine the endurance limit and all associated Marin factors b. Determine the factor of safety for infinite life using the Goodman Failure c. If the factor of safety is...
Q2. The state of stress on the surface of part of an engineering component is shown...
Q2. The state of stress on the surface of part of an engineering component is shown in Fig. 22. 94 MPa 51 MPa 25° 63 MPa Fig. Q2 - The State of Stress on the Surface of an Engineering Component (a) Using graph paper construct a Mohr's Stress Circle for the element and hence determine the magnitudes of the principal stresses and orientations of the principal planes. Clearly label these features on your diagram and sketch the state of stress...
If a firm has a Return on Assets higher than the industry average, while its Return...
If a firm has a Return on Assets higher than the industry average, while its Return on Equity is below the industry average, what must be true about the firm? O A. It has a higher total asset turnover than the industry average O B. It has a higher equity multiplier than the industry average O C. It has a lower profit margin than the industry average O D. It has a lower debt ratio than the industry average Reset...
answer E,F,G and H please 2. A bar of steel undergoes cyclic loading such that max...
answer E,F,G and H please
2. A bar of steel undergoes cyclic loading such that max = 60 kpsi and Omin = -20 kpsi. For the material, Sut = 80 kpsi, 5y = 65 kpsi,ka = 1.107. ky = 0.858, ke = ka = k, = k, = 1, and f = 0.9. (a) Calculate the alternating stress. (2 points) (b) Calculate the meani median) stress. (2 points) (c) Calculate the fully corrected endurance limit. (6 points) (d) Calculate the...
Figure (a) shows the stress strain relations for two different materials, A and B. Between A...
Figure (a) shows the stress strain relations for two different materials, A and B. Between A and B, which one has higher strength? stress B strain Figure (a) O A. Material A OB. Material B Figure (a) shows the stress strain relations for two different materials, A and B. Figure (b) is a schematic of the catastrophic failure of a Liberty ship. Between A and B. which material could have been used in construction of the ship and caused this...
7 a) b) c) d) Fracture toughness Kic of a material is: an indication of the...
7 a)
b)
c)
d)
Fracture toughness Kic of a material is: an indication of the materials ability to provide obstacles for dislocation motion. maximum ductility in the material an indication of the resistance a material offers to brittle fracture an indication of the materials endurance limit O maximum area under the stress-strain curve If the Kıc for Al2O3 is about 5 MPa.m 1/2, the Kıc for an Al alloy will be < 5 MPa.m 1/2 True O False The...
You are part of a team that is designing a structural component. The applied pressure loading...
You are part of a team that is designing a structural component. The applied pressure loading will be obtained by another team member using CFD analysis. The structure can be idealised as a simply supported beam. The tensile strength of the material will be used to size the structure. While you are waiting for the CFD calculations, you decide to perform an initial calculation on the structure with a uniformly distributed load (as shown below). y 3 B х 2a...
Q21. Which one of the following statements about the ductility of metals is TRUE? A High ductility occurs in brittle materials B Ductility is the amount of deformation at the 0.2% proof stress C Duct...
Q21. Which one of the following statements about the ductility of metals is TRUE? A High ductility occurs in brittle materials B Ductility is the amount of deformation at the 0.2% proof stress C Ductility can be measured as % reduction in area from broken tensile samples D Ductility is deformation in the elastic region E Ductility is the change between upper and lower yield point in steels Q22. Which one of the following statements is TRUE about Charpy impact...
please answer this questions. thanks Question 1 of 25 A developer at Google wants to convince...
please answer this questions. thanks
Question 1 of 25 A developer at Google wants to convince the finance department that investing in the Google glasses project is a good idea. The project needs a $50 million budget, and estimated cash flows from selling Google glasses will be $70 million the following year. The discount rate of this project is 12%. The marketing department wants to use the $50 million budget to advertise the Google TV instead. They expect the advertising...
2. A component has a fluctuating stress of σ() = 120MPa + 120MPa sin(t). The stress is due to bending and the material is AlSl 1060 HR. There is a groove cut in the part such that Kt=1.8. The minimum shaft diameter is 2cm and the notch radius is 3mm. a. Determine the endurance limit and all associated Marin factors b. Determine the factor of safety for infinite life using the Goodman Failure c. If the factor of safety is...
2. A component has a fluctuating stress of σ() = 120MPa + 120MPa sin(t). The stress is due to bending and the material is AlSl 1060 HR. There is a groove cut in the part such that Kt=1.8. The minimum shaft diameter is 2cm and the notch radius is 3mm. a. Determine the endurance limit and all associated Marin factors b. Determine the factor of safety for infinite life using the Goodman Failure c. If the factor of safety is...
Q2. The state of stress on the surface of part of an engineering component is shown in Fig. 22. 94 MPa 51 MPa 25° 63 MPa Fig. Q2 - The State of Stress on the Surface of an Engineering Component (a) Using graph paper construct a Mohr's Stress Circle for the element and hence determine the magnitudes of the principal stresses and orientations of the principal planes. Clearly label these features on your diagram and sketch the state of stress...
If a firm has a Return on Assets higher than the industry average, while its Return on Equity is below the industry average, what must be true about the firm? O A. It has a higher total asset turnover than the industry average O B. It has a higher equity multiplier than the industry average O C. It has a lower profit margin than the industry average O D. It has a lower debt ratio than the industry average Reset...
answer E,F,G and H please
2. A bar of steel undergoes cyclic loading such that max = 60 kpsi and Omin = -20 kpsi. For the material, Sut = 80 kpsi, 5y = 65 kpsi,ka = 1.107. ky = 0.858, ke = ka = k, = k, = 1, and f = 0.9. (a) Calculate the alternating stress. (2 points) (b) Calculate the meani median) stress. (2 points) (c) Calculate the fully corrected endurance limit. (6 points) (d) Calculate the...
Figure (a) shows the stress strain relations for two different materials, A and B. Between A and B, which one has higher strength? stress B strain Figure (a) O A. Material A OB. Material B Figure (a) shows the stress strain relations for two different materials, A and B. Figure (b) is a schematic of the catastrophic failure of a Liberty ship. Between A and B. which material could have been used in construction of the ship and caused this...
7 a)
b)
c)
d)
Fracture toughness Kic of a material is: an indication of the materials ability to provide obstacles for dislocation motion. maximum ductility in the material an indication of the resistance a material offers to brittle fracture an indication of the materials endurance limit O maximum area under the stress-strain curve If the Kıc for Al2O3 is about 5 MPa.m 1/2, the Kıc for an Al alloy will be < 5 MPa.m 1/2 True O False The...
You are part of a team that is designing a structural component. The applied pressure loading will be obtained by another team member using CFD analysis. The structure can be idealised as a simply supported beam. The tensile strength of the material will be used to size the structure. While you are waiting for the CFD calculations, you decide to perform an initial calculation on the structure with a uniformly distributed load (as shown below). y 3 B х 2a...
Q21. Which one of the following statements about the ductility of metals is TRUE? A High ductility occurs in brittle materials B Ductility is the amount of deformation at the 0.2% proof stress C Ductility can be measured as % reduction in area from broken tensile samples D Ductility is deformation in the elastic region E Ductility is the change between upper and lower yield point in steels Q22. Which one of the following statements is TRUE about Charpy impact...
please answer this questions. thanks
Question 1 of 25 A developer at Google wants to convince the finance department that investing in the Google glasses project is a good idea. The project needs a $50 million budget, and estimated cash flows from selling Google glasses will be $70 million the following year. The discount rate of this project is 12%. The marketing department wants to use the $50 million budget to advertise the Google TV instead. They expect the advertising...
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