Homework Answers
The solid cireular cross-section bar shown is machined from AISI 1040 CD steel and is subjected t...
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The solid cireular cross-section bar shown is machined from AISI 1040 CD steel and is subjected to a t60 kip fuctuating axial load as shown. 18 in 8 in 8 in 0.20 in rad." L- 2-in dia. 3-in dia. +60 kip НН -60 kip 1. Estimate the fully corrected endurance limit. Express your answer in ksi. 2. Determine the minimum factor of safety based on achieving infinite life 3. Determine the factor of safety against...
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...
Need help asap b) A polished rotating-beam test specimen is made of AISI 4140 Q&T steel and the heat treated st...
Need help asap
b) A polished rotating-beam test specimen is made of AISI 4140 Q&T steel and the heat treated steel material has an ultimate tensile strength of 1550 MPa and yield strength of f- 0.77, estimate: 1430 MPa. Assuming the fatigue strength fraction 0) Fatigue strength corresponding to a life of 10° cycles of stress reversal (5 marks) (i) Life of the specimen if it is tested at a completely reversed stress amplitude of 400 MPa (2 marks)
b)...
Need help asap b) A po lished rotating-beam test specimen is made of AISI 4340 quenched and tempered (Q&T) steel...
Need help asap
b) A po lished rotating-beam test specimen is made of AISI 4340 quenched and tempered (Q&T) steel and the heat treated steel material has an ultimate tensile strength of 1470 MPa and yield strength of 1360 MPa. Assuming the fatigue strength fraction f-0.77, estimate the life of the specimen if it is tested at a completely reversed stress amplitude of 500 MPa. (7 Marks)
b) A po lished rotating-beam test specimen is made of AISI 4340 quenched...
The cantilever bar in the figure is made from AISI 1018 CD steel and is statically loaded
The cantilever bar in the figure is made from AISI 1018 CD
steel and is statically loaded with Fy = 800 N, and Fx = Fz = 0.
The fillet radius at the wall is 2 mm with theoretical stress
concentrations of 1.5 for bending, 1.2 for axial, and 2.1 for
torsion.Sut = 440 MPa = 64 kpsi, Sy = 370 MPa = 54 kpsi. Analyze the
stress situation in rod AB by obtaining the following
information.a) Determine the precise...
A spherical pressure vessel is formed using 20 gauge (0.0359 inch) cold drawn AISI 1020 steel she...
A spherical pressure vessel is formed using 20 gauge (0.0359 inch) cold drawn AISI 1020 steel sheet, Syield-57,000 psi, Sultimate 68,000 psi. density 0.282 lb/cubic inch Temperature is 75 F. mine the maximum pressure in the tank for an inner diameter of 15 inches using yield Deter Volume of sphere 4/3*pi*radius cubed Surface area of a sphere -4*pi'r squared. Calculate the minimum tank weight in lbm using a 15% factor for weld thickness and fittings. strength with a factor of...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated sludge operation that adversely affect effluent quality with origins in the engineering, hydraulic and microbiological components of the process. The real "heart" of the activated sludge system is the development and maintenance of a mixed microbial culture (activated sludge) that treats wastewater and which can be managed. One definition of a wastewater treatment plant operator is a "bug farmer", one who controls the aeration...
show all work and steps
The solid cireular cross-section bar shown is machined from AISI 1040 CD steel and is subjected to a t60 kip fuctuating axial load as shown. 18 in 8 in 8 in 0.20 in rad." L- 2-in dia. 3-in dia. +60 kip НН -60 kip 1. Estimate the fully corrected endurance limit. Express your answer in ksi. 2. Determine the minimum factor of safety based on achieving infinite life 3. Determine the factor of safety against...
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...
Need help asap
b) A polished rotating-beam test specimen is made of AISI 4140 Q&T steel and the heat treated steel material has an ultimate tensile strength of 1550 MPa and yield strength of f- 0.77, estimate: 1430 MPa. Assuming the fatigue strength fraction 0) Fatigue strength corresponding to a life of 10° cycles of stress reversal (5 marks) (i) Life of the specimen if it is tested at a completely reversed stress amplitude of 400 MPa (2 marks)
b)...
Need help asap
b) A po lished rotating-beam test specimen is made of AISI 4340 quenched and tempered (Q&T) steel and the heat treated steel material has an ultimate tensile strength of 1470 MPa and yield strength of 1360 MPa. Assuming the fatigue strength fraction f-0.77, estimate the life of the specimen if it is tested at a completely reversed stress amplitude of 500 MPa. (7 Marks)
b) A po lished rotating-beam test specimen is made of AISI 4340 quenched...
The cantilever bar in the figure is made from AISI 1018 CD
steel and is statically loaded with Fy = 800 N, and Fx = Fz = 0.
The fillet radius at the wall is 2 mm with theoretical stress
concentrations of 1.5 for bending, 1.2 for axial, and 2.1 for
torsion.Sut = 440 MPa = 64 kpsi, Sy = 370 MPa = 54 kpsi. Analyze the
stress situation in rod AB by obtaining the following
information.a) Determine the precise...
A spherical pressure vessel is formed using 20 gauge (0.0359 inch) cold drawn AISI 1020 steel sheet, Syield-57,000 psi, Sultimate 68,000 psi. density 0.282 lb/cubic inch Temperature is 75 F. mine the maximum pressure in the tank for an inner diameter of 15 inches using yield Deter Volume of sphere 4/3*pi*radius cubed Surface area of a sphere -4*pi'r squared. Calculate the minimum tank weight in lbm using a 15% factor for weld thickness and fittings. strength with a factor of...
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