Homework Answers
Add Answer to:
ME 117 Final The disk sander shown in the figure has a steel shaft with a...
A shaft is to be manufactured from a steel having an ultimate tensile strength of 420...
A shaft is to be manufactured from a steel having an ultimate tensile strength of 420 MPa, and a yield stress of 305 MPa. The shaft has a solid circular cross section of diameter 50 mm and is subjected to a sinusoidally varying torque ranging from 60 Nm to 130 Nm. It has also been established that the shaft has a fully-corrected endurance limit of 129 MPa and that a torsional fatigue stress concentration factor, kf = 2.1, exists at...
The rotating shaft shown in the figure is machined and ground from a steel with a yield strength of 373 MPaand an ultimate strength of 430 MPa. It is subjected to a force of F 6.4 kN and operat...
The rotating shaft shown in the figure is machined and ground from a steel with a yield strength of 373 MPaand an ultimate strength of 430 MPa. It is subjected to a force of F 6.4 kN and operates at about 300 C. Find the minimum factor of safety for fatigue based on infinite life if a reliability of99% is desired. All dimensions in the figure are in mm. 25 D r50 D 25 D -35 D I R 20...
A ground steel shaft with a shoulder fillet has dimensions: D= 30 mm, d=25 mm and...
A ground steel shaft with a shoulder fillet has dimensions: D= 30 mm, d=25 mm and r= 2 mm. It is subjected to a combined nominal loading of 40 to 190 MPa bending stress and torsional stress of 20 to 70 MPa, which are in phase. Find the safety factor for infinite life if ultimate tensile strength is 965 MPa, state all assumptions.
A stepped shaft with a ground finish is made of steel with an ultimate tensile strength of 1200 MPa. The shaft is l...
A stepped shaft with a ground finish is made of steel with an ultimate tensile strength of 1200 MPa. The shaft is loaded with a fully reversed torque of 20 Nm. Dimensions of the shaft are given below. (5) a) Given the stress concentration for fatigue loading, Kfs 1.3, find the location and magnitude of the maximum stress in the shaft. (14) b) Find the endurance limit, assuming room temperature and a reliability of 99%. (1) c)Will the part have...
A notched circular shaft shown is subjected to fully reversed bending. D=12.7mm, d=10.16 mm, and r=0.5mm. The steel material has the following mechanical and fatigue properties: yield strength (σ0)=10...
A notched circular shaft shown is subjected to fully reversed
bending. D=12.7mm, d=10.16 mm, and r=0.5mm. The steel material has
the following mechanical and fatigue properties: yield strength
(σ0)=1000 MPa, ultimate strength (σu)=1200 MPa, the fatigue
strength coefficient (σf’)=1600 MPa, the fatigue strength exponent
(b)=-0.1, and the fatigue limit (σe)=400 MPa.
5. (20 pts) A notched circular shaft shown is subjected to fully reversed bending. D-12.7mm, d-10.16 mm, and r-0.5mm. The steel material has the following mechanical and fatigue properties:...
5. (20 pts) A notched circular shaft shown is subjected to fully reversed bending. D-12.7mm, d-10.16 mm, and r-0.5mm. The steel material has the following mechanical and fatigue properties: yield str...
5. (20 pts) A notched circular shaft shown is subjected to fully reversed bending. D-12.7mm, d-10.16 mm, and r-0.5mm. The steel material has the following mechanical and fatigue properties: yield strength (0o)-1000 MPa, ultimate strength (o ) 1200 MPa, the fatigue strength coefficient (σ) 1600 MPa, the fatigue strength exponent (b) 0.1, and the fatigue limit (oe)-400 MPa. a) (10 pts) Determine the fatigue (S-N) curve for the given notched circular shaft under fully reversed bending (computer generated graph is...
The shaft shown in the figure is supported on bearings located at A and D. The...
The shaft shown in the figure is supported on bearings located at A and D. The shaft is made from steel with a yield strength of 400 MPa and an ultimate strength of 600 MPa. The shaft has a machined surface finish. The geometric stress concentration at point A, B, C, and D is 1.65. The material has a notch sensitivity of 0.896. All dimensions are in mm. If the shaft rotates, with the force F remaining fixed, find the...
Question 2: [20 Points) The Figure below shows a portion of a pump that is gear...
Question 2: [20 Points) The Figure below shows a portion of a pump that is gear driven at uniform load and speed. The shaft is supported by bearings mounted in the pump housing. The shaft is made of steel, its yield strength is 800 MPa and its ultimate tensile strength is 1000 MPa. The surface of the shaft is machined. Due to the fillet at A, the fatigue bending stress concentration factor is 2.0, the fatigue torsion stress concentration factor...
An shown in the folloing figure, shaft A. made of AISI 1020 hot-rolled steelis welded to...
An shown in the folloing figure, shaft A. made of AISI 1020 hot-rolled steelis welded to a ised suppot and is subjected to loading by simultaneous forces Fr and F:via shat B. A theoretieal stress concentration factor K of 1.6 and K, of 1.4 is induced in the shat by the E in weld fillet 1 he, lengi h of shaft A from the fixed support to the connection at shaft B is 2 ft. The load cycles thom 1S0...
6. For the bearing with the largest radial load and without knowing the shaft diameter, what...
6. For the bearing with the largest radial load and without
knowing the shaft diameter, what would be the catalog rating for a
radially loaded ball bearing to withstand 1000 x 10e6 cycles with
90% reliability. The bearing manufacturer rates its bearing for a
million cycles.
7. A 10 mm diameter steel shaft is subject to bending stresses
only. The material has Sut = 1100 MPa and Sy = 950 MPa and a
fine-ground surface finish.
1. Determine the factor...
The rotating shaft shown in the figure is machined and ground from a steel with a yield strength of 373 MPaand an ultimate strength of 430 MPa. It is subjected to a force of F 6.4 kN and operates at about 300 C. Find the minimum factor of safety for fatigue based on infinite life if a reliability of99% is desired. All dimensions in the figure are in mm. 25 D r50 D 25 D -35 D I R 20...
A ground steel shaft with a shoulder fillet has dimensions: D= 30 mm, d=25 mm and r= 2 mm. It is subjected to a combined nominal loading of 40 to 190 MPa bending stress and torsional stress of 20 to 70 MPa, which are in phase. Find the safety factor for infinite life if ultimate tensile strength is 965 MPa, state all assumptions.
A stepped shaft with a ground finish is made of steel with an ultimate tensile strength of 1200 MPa. The shaft is loaded with a fully reversed torque of 20 Nm. Dimensions of the shaft are given below. (5) a) Given the stress concentration for fatigue loading, Kfs 1.3, find the location and magnitude of the maximum stress in the shaft. (14) b) Find the endurance limit, assuming room temperature and a reliability of 99%. (1) c)Will the part have...
A notched circular shaft shown is subjected to fully reversed
bending. D=12.7mm, d=10.16 mm, and r=0.5mm. The steel material has
the following mechanical and fatigue properties: yield strength
(σ0)=1000 MPa, ultimate strength (σu)=1200 MPa, the fatigue
strength coefficient (σf’)=1600 MPa, the fatigue strength exponent
(b)=-0.1, and the fatigue limit (σe)=400 MPa.
5. (20 pts) A notched circular shaft shown is subjected to fully reversed bending. D-12.7mm, d-10.16 mm, and r-0.5mm. The steel material has the following mechanical and fatigue properties:...
5. (20 pts) A notched circular shaft shown is subjected to fully reversed bending. D-12.7mm, d-10.16 mm, and r-0.5mm. The steel material has the following mechanical and fatigue properties: yield strength (0o)-1000 MPa, ultimate strength (o ) 1200 MPa, the fatigue strength coefficient (σ) 1600 MPa, the fatigue strength exponent (b) 0.1, and the fatigue limit (oe)-400 MPa. a) (10 pts) Determine the fatigue (S-N) curve for the given notched circular shaft under fully reversed bending (computer generated graph is...
The shaft shown in the figure is supported on bearings located at A and D. The shaft is made from steel with a yield strength of 400 MPa and an ultimate strength of 600 MPa. The shaft has a machined surface finish. The geometric stress concentration at point A, B, C, and D is 1.65. The material has a notch sensitivity of 0.896. All dimensions are in mm. If the shaft rotates, with the force F remaining fixed, find the...
Question 2: [20 Points) The Figure below shows a portion of a pump that is gear driven at uniform load and speed. The shaft is supported by bearings mounted in the pump housing. The shaft is made of steel, its yield strength is 800 MPa and its ultimate tensile strength is 1000 MPa. The surface of the shaft is machined. Due to the fillet at A, the fatigue bending stress concentration factor is 2.0, the fatigue torsion stress concentration factor...
An shown in the folloing figure, shaft A. made of AISI 1020 hot-rolled steelis welded to a ised suppot and is subjected to loading by simultaneous forces Fr and F:via shat B. A theoretieal stress concentration factor K of 1.6 and K, of 1.4 is induced in the shat by the E in weld fillet 1 he, lengi h of shaft A from the fixed support to the connection at shaft B is 2 ft. The load cycles thom 1S0...
6. For the bearing with the largest radial load and without
knowing the shaft diameter, what would be the catalog rating for a
radially loaded ball bearing to withstand 1000 x 10e6 cycles with
90% reliability. The bearing manufacturer rates its bearing for a
million cycles.
7. A 10 mm diameter steel shaft is subject to bending stresses
only. The material has Sut = 1100 MPa and Sy = 950 MPa and a
fine-ground surface finish.
1. Determine the factor...
Most questions answered within 3 hours.
-
Which statement is always true: The total energy of a closed
system...
A) is always equally...
asked 1 minute from now -
find the critical value associated with a right sided hypothesis of
the mean using a sample...
asked 1 hour ago -
Which of the following statements is true with respect to a
simple linear regression model?
a....
asked 2 hours ago -
The energy required to remove an electron from a surface of a
solid element is called...
asked 4 hours ago -
How would you train your employees to avoid risks of using
mobile devices?
asked 4 hours ago -
Assume Kw = 1.01 ✕ 10−14
For pure water, we can calculate [H3O+ ] = [OH...
asked 5 hours ago -
Suppose that on a temperature scale X, water boils at 203.0°X
and freezes at -105.7°X. What...
asked 6 hours ago -
BaS crystallizes in a cubic unit cell with S2- ions on each
corner and each face....
asked 6 hours ago -
A. 0≤P(Oi)≤10≤P(Oi)≤1 for each i
B. P(Oi)≤0P(Oi)≤0
C. P(Oi)=1+P(OCi)P(Oi)=1+P(OiC)
D. P(Oi)≥1P(Oi)≥1
If an experiment consists of...
asked 8 hours ago -
A battery has an emf of 9.20V and an internal resistance of 1.20
ohm. a)What resistance...
asked 8 hours ago -
The area of an elastic circular loop decreases at a constant
rate, dA/dt = −6.60×10−3 m2/s...
asked 9 hours ago -
The denaturation of proteins can be described by the
equilibrium
F⇌U
where F and U represent...
asked 10 hours ago