Homework Answers
Add Answer to:
A stepped shaft with a ground finish is made of steel with an ultimate tensile strength of 1200 MPa. The shaft is l...
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 stepped shaft as shown, has the dimensions D = 10mm, d = 8mm, r=0.8mm. It is made of steel having Su = 1200 MPa
A stepped shaft as shown, has the dimensions D = 10mm, d = 8mm, r=0.8mm. It is made of steel having Su = 1200 MPa (~ 180 Ksi) and is finished with grinding operation. In service, it is loaded with a fluctuating Zero - to - Maximum torque (unknown). Estimate this Maximum torque with a safety factor of 2 with respect to 105Cycles of revolutions.
A cold drawn rectangular steel bar with a ultimate tensile strength of Su = 482 MPa...
A cold drawn rectangular steel bar with a ultimate tensile strength of Su = 482 MPa and dimension as shown below. Estimate the maximum completely alternating tensile force (HF) that can be applied to the ends and have an infinite fatigue life with a safety factor of 1.3. 140 Bhn h = 10 mm b = 60 mm d = 12 mm
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.
(15 marks) Question Four The fully machined steel connecting link is made from a steel with...
(15 marks) Question Four The fully machined steel connecting link is made from a steel with an ultimate tensile strength of 700MPa. The holes at either end of the link are to carry pin connectors. The link is 10mm thick The link is axially loaded, with a fully reversed load. Assuming infinite life and a safety factor of 2, estimate the maximum load that may be applied to the link. Note that as axially loaded members will only need to...
2. Tensile and fully reversed loading fatigue tests were conducted for a certain steel alloy and...
2. Tensile and fully reversed loading fatigue tests were conducted for a certain steel alloy and revealed the tensile strength and endurance limit to be 1200 and 550 MPa, respectively. If a rod of this material supply were subjected to a static stress of 600 MPa and oscillating stresses whose total range was 700 MPa, would you expect the rod to fail by fatigue processes? Use the Gerber relation for the analysis.
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:...
Question Four (15 marks) The fully machined steel connecting link is made from a steel with...
Question Four (15 marks) The fully machined steel connecting link is made from a steel with an ultimate tensile strength of 700MPa. The holes at either end of the link are to carry pin connectors. The link is 10mm thick. The link is axially loaded, with a fully reversed load. Assuming infinite life and a safety factor of 2, estimate the maximum load that may be applied to the link. Note that as axially loaded members are generally not sensitive...
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 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 cold drawn rectangular steel bar with a ultimate tensile strength of Su = 482 MPa and dimension as shown below. Estimate the maximum completely alternating tensile force (HF) that can be applied to the ends and have an infinite fatigue life with a safety factor of 1.3. 140 Bhn h = 10 mm b = 60 mm d = 12 mm
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.
(15 marks) Question Four The fully machined steel connecting link is made from a steel with an ultimate tensile strength of 700MPa. The holes at either end of the link are to carry pin connectors. The link is 10mm thick The link is axially loaded, with a fully reversed load. Assuming infinite life and a safety factor of 2, estimate the maximum load that may be applied to the link. Note that as axially loaded members will only need to...
2. Tensile and fully reversed loading fatigue tests were conducted for a certain steel alloy and revealed the tensile strength and endurance limit to be 1200 and 550 MPa, respectively. If a rod of this material supply were subjected to a static stress of 600 MPa and oscillating stresses whose total range was 700 MPa, would you expect the rod to fail by fatigue processes? Use the Gerber relation for the analysis.
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:...
Question Four (15 marks) The fully machined steel connecting link is made from a steel with an ultimate tensile strength of 700MPa. The holes at either end of the link are to carry pin connectors. The link is 10mm thick. The link is axially loaded, with a fully reversed load. Assuming infinite life and a safety factor of 2, estimate the maximum load that may be applied to the link. Note that as axially loaded members are generally not sensitive...
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...
Most questions answered within 3 hours.
-
After watching the lectures I am still having a hard time
understanding these equations.
1. The...
asked 22 minutes ago -
Testing:
H0:μ=56.9
H1:μ<56.9
Your sample consists of 23 subjects, with a mean of 56.3 and
standard...
asked 25 minutes ago -
straight wire, labeled as Wire A, lies horizontally on a
tabletop and is oriented to run...
asked 27 minutes ago -
For a Chi-Squared Goodness of Fit Test about a uniform
distribution, complete the table.
Round to...
asked 54 minutes ago -
Milk of magnesia is only slightly soluble in water. Kc for the
reaction Mg(OHs)(s)>Mg2+(a) + 2OH-1(aq)...
asked 49 minutes ago -
Excel's HYPGEOM.DIST function can be used to compute _____.
a. both hypergeometric probabilities and cumulative
hypergeometric...
asked 1 hour ago -
The rocket used for the human lunar missions was the Saturn V
rocket. At liftoff the...
asked 51 minutes ago -
1. The East Street Bagel Shop has a weekly demand for 3,500
bagels, which they make...
asked 54 minutes ago -
paraphrasing each paragraph
“Where two or more persons knowingly act together unlawfully,
the act of each...
asked 1 hour ago -
The lateral line system in fish is contained which of the
following?
chemoreceptors
photoreceptors
mechanoreceptors
odor...
asked 1 hour ago -
Find the y-intercept of y =-5 x. The y-intercept of y equals
negative 5 x is______...
asked 1 hour ago -
Customers arrive randomly at a gas station at the average rate
of 30 per hour, while...
asked 1 hour ago