Mechanical Design
In general the Goodman diagram/equation can be utilized to…?
A Estimate whether a component has infinite life under fluctuating stresses
B Estimate the maximum stress in a component
C Model crack propagation
D Increase the accuracy of a free body diagram
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The mechanical component shown in the figure is subjected to variable loading conditions that cau...
The mechanical component shown in the figure is subjected to variable loading conditions that cause the axial stresses to fluctuate as indicated in the stress-time history. The material of the part is AISI 1045 HR steel with an ultimate static strength of 570 MPa. The part has been tested in the laboratory under different completely reversed stress amplitudes, the fatigue life results of these tests are shown in the table a) The S-N diagram of the part based on the...
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 flat bar (thickness b = 10 mm) with a shoulder fillet is loaded by a...
A flat bar (thickness b = 10 mm) with a shoulder fillet is loaded by a cyclic force F-10-2013 shown below. The bar is made of alloy steel (S. = 900 MPa, S, - 700 MPa) and has dimensions of 35 mm, H = 50 mm, r = 4 mm and I = 80 mm. The actual fatigue strength of the component is estimated as S = 360 MPa for commercially polished surface conditions. The bar should be safe against...
MEC 432 Mechanical Design I and draw the MDE theory please The bearings at A and...
MEC
432
Mechanical Design I
and draw the MDE theory please
The bearings at A and B exert only y and a components of force on the shaft. If Sy = 150 MPa for the selected ductile material, determine the factor of safety if the shaft diameter is 40 mm. Use the maximum distortion-energy theory of failure. Show the following procedures through the calculation steps (Free Body diagram (FBD), Reaction at A and D, Bending moment diagram, point of max....
4. Consider 4 materials A, B, C, D that all have edge cracks of width a...
4. Consider 4 materials A, B, C, D that all have edge cracks of width a = plane-strain fracture toughness (i.e, Kic) of A, B, C and D are, respectively, 1 MPa mo5 5 MPa m0.5, 10 MPa mo5, and 20 MPa mo.5. If each of these materials A, B, C and D, is subjected to fatigue loading where the stresses vary from a minimum of 0 MPa to a maximum of 100 MPa, and the crack sizes increase due...
With the ne ed to determine the malllum I You are an engineer at company XYZ, and you are dealing...
with the ne ed to determine the malllum I You are an engineer at company XYZ, and you are dealing you can apply to a set of bolted/clamped plates, such that you get infinite life. a) (1.5 pt) If you have an coarse thread M12 x 1.75 bolt of SAE Class 5.8, what would you recommend as the initial tightening force in the bolt? Is this initial foree in the bolt the same as the elamped members?Hint: Use F0.9A Sp...
step by step solution please 3. The fatigue characteristics for a brass alloy are given as...
step by step solution please
3. The fatigue characteristics for a brass alloy are given as follows: Stress Amplitude (MPa) 170 Cycles to Failure 3.7 x 104 1.0 x 105 3.0 x 105 1 x 106 1 x 107 1 x 108 1 x 109 130 114 2 0 (a) Make an S-N plot (stress amplitude vs. logarithm cycles to failure) using these data. (b) Determine the fatigue strength at 4 x 106 cycles. (c) Determine the fatigue life for...
OUESTION 2 The solid cylindrical member in Figure 3 is under a point load of P...
OUESTION 2 The solid cylindrical member in Figure 3 is under a point load of P at point C. If the beam has a radius ofr 50 mm, length L = 4 m, and load P 5 kN and E= 200 GPa (a) Draw the free body, shear force, bending moment and torque diagrams for both sections of the member (4 Marks) (b) What is the maximum bending stress induced in the member? (3 Marks) (c) What is the maximum...
The figure above shows a shaft mounted in bearings A and D and having pulleys at B and C.
The figure above shows a shaft mounted in bearings A and D and having pulleys at B and C. The shaft is 20 mm in diameter and made of AISI 1020 CD steel. The forces shown acting on the pulley surfaces represent the belt tensions. The shaft is concerned with yielding and fatigue failure. [Stress analysis) (1) Draw the free body diagrams and find reaction forces at A and D in the xy and xz planes. (2) Draw the shear force and moment...
a. Draw a free-body diagram for the beam shown above and derive expressions for the support...
a. Draw a free-body diagram for the beam shown above and derive
expressions for the support reactions at A and B
b. Draw internal force (shear and bending moment) diagrams.
c. If a = 10 ft and M0 = 200 ft-lb, use the dimensions of the
beam cross-section, provided on the previous page, to compute the
maximum flexural and shear stresses on the beam cross-section.
d. If the allowable bending stress is 925 psi and the allowable
shear stress is...
The mechanical component shown in the figure is subjected to variable loading conditions that cause the axial stresses to fluctuate as indicated in the stress-time history. The material of the part is AISI 1045 HR steel with an ultimate static strength of 570 MPa. The part has been tested in the laboratory under different completely reversed stress amplitudes, the fatigue life results of these tests are shown in the table a) The S-N diagram of the part based on the...
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 flat bar (thickness b = 10 mm) with a shoulder fillet is loaded by a cyclic force F-10-2013 shown below. The bar is made of alloy steel (S. = 900 MPa, S, - 700 MPa) and has dimensions of 35 mm, H = 50 mm, r = 4 mm and I = 80 mm. The actual fatigue strength of the component is estimated as S = 360 MPa for commercially polished surface conditions. The bar should be safe against...
MEC
432
Mechanical Design I
and draw the MDE theory please
The bearings at A and B exert only y and a components of force on the shaft. If Sy = 150 MPa for the selected ductile material, determine the factor of safety if the shaft diameter is 40 mm. Use the maximum distortion-energy theory of failure. Show the following procedures through the calculation steps (Free Body diagram (FBD), Reaction at A and D, Bending moment diagram, point of max....
4. Consider 4 materials A, B, C, D that all have edge cracks of width a = plane-strain fracture toughness (i.e, Kic) of A, B, C and D are, respectively, 1 MPa mo5 5 MPa m0.5, 10 MPa mo5, and 20 MPa mo.5. If each of these materials A, B, C and D, is subjected to fatigue loading where the stresses vary from a minimum of 0 MPa to a maximum of 100 MPa, and the crack sizes increase due...
with the ne ed to determine the malllum I You are an engineer at company XYZ, and you are dealing you can apply to a set of bolted/clamped plates, such that you get infinite life. a) (1.5 pt) If you have an coarse thread M12 x 1.75 bolt of SAE Class 5.8, what would you recommend as the initial tightening force in the bolt? Is this initial foree in the bolt the same as the elamped members?Hint: Use F0.9A Sp...
step by step solution please
3. The fatigue characteristics for a brass alloy are given as follows: Stress Amplitude (MPa) 170 Cycles to Failure 3.7 x 104 1.0 x 105 3.0 x 105 1 x 106 1 x 107 1 x 108 1 x 109 130 114 2 0 (a) Make an S-N plot (stress amplitude vs. logarithm cycles to failure) using these data. (b) Determine the fatigue strength at 4 x 106 cycles. (c) Determine the fatigue life for...
OUESTION 2 The solid cylindrical member in Figure 3 is under a point load of P at point C. If the beam has a radius ofr 50 mm, length L = 4 m, and load P 5 kN and E= 200 GPa (a) Draw the free body, shear force, bending moment and torque diagrams for both sections of the member (4 Marks) (b) What is the maximum bending stress induced in the member? (3 Marks) (c) What is the maximum...
a. Draw a free-body diagram for the beam shown above and derive
expressions for the support reactions at A and B
b. Draw internal force (shear and bending moment) diagrams.
c. If a = 10 ft and M0 = 200 ft-lb, use the dimensions of the
beam cross-section, provided on the previous page, to compute the
maximum flexural and shear stresses on the beam cross-section.
d. If the allowable bending stress is 925 psi and the allowable
shear stress is...
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