A bar of steel has the minimum propertiesSe = 40 kpsi, Sy = 60 kpsi, and Sut = 80 kpsi.
A bar of steel has the minimum propertiesSe = 40 kpsi, Sy = 60 kpsi, and Sut = 80 kpsi. The bar is subjected to a steady torsional stress (τm) of 19 kpsi and an alternating bending stress of (σa) 9.6 kpsi. Find the factor of safety guarding against a static failure, and either the factor of safety guarding against a fatigue failure or the expected life of the part.
A. Find the factor of safety. For the fatigue analysis, use
modified Goodman criterion.
The factor of safety based on modified Goodman criterion
is________.
B.Find the factor of safety. For the fatigue analysis, use the
Gerber criterion.
The factor of safety based on Gerber criterion is_________.
C. Find the factor of safety. For the fatigue analysis, use the
Morrow criterion.
The factor of safety is_______.
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A bar of steel has the minimum propertiesSe = 40 kpsi, Sy = 60 kpsi, and Sut = 80 kpsi.
A bar of steel has the minimum properties Se = 40 kpsi, Sy = 60 kpsi,...
A bar of steel has the minimum properties Se = 40 kpsi, Sy = 60 kpsi, and Sut = 80 kpsi. The bar is subjected to a steady torsional stress (τm) of 19 kpsi and an alternating bending stress of (σa) 10.2 kpsi. Find the factor of safety guarding against a static failure, and either the factor of safety guarding against a fatigue failure or the expected life of the part. Based on: A. modified Goodman criterion B. Gerber criterion...
A bar of steel has the minimum properties Se 276 MPa, Sy The bar is subjected...
A bar of steel has the minimum properties Se 276 MPa, Sy The bar is subjected to a steady torsional stress of 103 MPa and an alternating of 172 MPa. Find th of safety guarding against a fatigue failure or the expected life of the p analysis use: (a) Modified Goodman criterion. (b) Gerber criterion. (c) ASME-elliptic criterion. 413 MPa, and Suu 551 MPa. bending stress e factor of safety guarding against a static farlure, ånd either the factor art....
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...
Sut = 80 ksi, Sy= 60 ksi, Si = 40 ksi, q=0.85 (notch sensitivity), steel E...
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A steel bar has Sut - 590 MPa and Sy -490 MPa. It is subjected to...
A steel bar has Sut - 590 MPa and Sy -490 MPa. It is subjected to a t30 kN alternating load through the middle What is the factor of safety for static failure? Determine if the part meets the criteria for infinite life, and if not, determine the number of cycles to failure. a. b.
The cantilever bar in the figure is made from AISI 1018 CD steel and is statically loaded
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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
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information.a) Determine the precise...
Sut = 80 ksi, Sy= 60 ksi, Si = 40 ksi, q=0.85 (notch sensitivity), steel E...
Sut = 80 ksi, Sy= 60 ksi, Si = 40 ksi, q=0.85 (notch sensitivity), steel E = 30e6 psi Remember we use Modified-Goodman for all calculations A 1-inch diameter rod that is 8 inches long has a bearing at one end and another bearing at 6 inches (treat bearings as simple supports). A vertical load is applied at the end of the overhanging rod and a torque is transmitted through the length of the rod. (Fmax = 100 lbf Tmax...
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A 1045 hot rolled steel rod undergoes axial cyclic loading from a minimum stress of 2 kpsi to a maximum of 10 kpsi. The rod has a hole in the center of bar, with a Kt 1.7, and notch sensitivity factor 0.9. The yield strength of bar is 45 kpsi, ultimate strength 82 kpsi, fully endurance limit of 20 kpsi, fatigue strength fraction 0.85. 1. a. Using modified goodman criteria, find FOS b. lfinfinite life is not predicted estimate the...
The shaft shown is made of AISI 1040 CD steel
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A bar of steel has the minimum properties Se 276 MPa, Sy The bar is subjected to a steady torsional stress of 103 MPa and an alternating of 172 MPa. Find th of safety guarding against a fatigue failure or the expected life of the p analysis use: (a) Modified Goodman criterion. (b) Gerber criterion. (c) ASME-elliptic criterion. 413 MPa, and Suu 551 MPa. bending stress e factor of safety guarding against a static farlure, ånd either the factor art....
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...
Sut = 80 ksi, Sy= 60 ksi, Si = 40 ksi, q=0.85 (notch sensitivity), steel E = 30e6 psi Remember we use Modified-Goodman for all calculations A3 inch hollow tube with 1/16 inch wall thickness is used to make a 4 foot long drive shaft. The maximum torque on the is 400 ft-lbf. The shaft is loaded cyclically from 0 to max torque. a) Calculate the fatigue and yield factor of safety b) Assume that there is a 0.3 in...
A steel bar has Sut - 590 MPa and Sy -490 MPa. It is subjected to a t30 kN alternating load through the middle What is the factor of safety for static failure? Determine if the part meets the criteria for infinite life, and if not, determine the number of cycles to failure. a. b.
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...
Sut = 80 ksi, Sy= 60 ksi, Si = 40 ksi, q=0.85 (notch sensitivity), steel E = 30e6 psi Remember we use Modified-Goodman for all calculations A 1-inch diameter rod that is 8 inches long has a bearing at one end and another bearing at 6 inches (treat bearings as simple supports). A vertical load is applied at the end of the overhanging rod and a torque is transmitted through the length of the rod. (Fmax = 100 lbf Tmax...
A 1045 hot rolled steel rod undergoes axial cyclic loading from a minimum stress of 2 kpsi to a maximum of 10 kpsi. The rod has a hole in the center of bar, with a Kt 1.7, and notch sensitivity factor 0.9. The yield strength of bar is 45 kpsi, ultimate strength 82 kpsi, fully endurance limit of 20 kpsi, fatigue strength fraction 0.85. 1. a. Using modified goodman criteria, find FOS b. lfinfinite life is not predicted estimate the...
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