A space frame strut has a rectangular cross section of 10.0 mm by 30.0 mm that...
A space frame strut has a rectangular cross section of 10.0 mm by 30.0 mm that is made from 1040 cold drawn steel. It sees a load that varies from a tensile force of 20.0 kN to a compressive force of 8.0 kN. If the part needs to have a reliability factor of 99%, what is the design factor using the Goodman Method? Use the larger dimension (30.0 mm) for the size factor in this problem.
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A space frame strut has a rectangular cross section of 10.0 mm
by 30.0 mm that...
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
The cold drawn AISI 1040 steel bar with 25-mm width and 10-mm thick has a 6-...
The cold drawn AISI 1040 steel bar with 25-mm width and 10-mm thick has a 6- mm diameter thru hole in the center of the plate. The plate is subjected to a completely reversed axial load that fluctuates from 12kN to 28kN. Use notch sensitivity of 0.83. (40 points) a. Estimate the fatigue factor of safety based on yielding criteria. b. Estimate the fatigue factor of safety based on Goodman and Morrow criteria.
Question 3 128 Marks 2 rectangular beam shown in the figure is subjected to a fluctuating axial f...
please draw and solve show every thing details “”
Question 3 128 Marks 2 rectangular beam shown in the figure is subjected to a fluctuating axial force. It fluctuates between 5 kN and 15 kN keeping its direction. The beam is to be machined to the dimensions shown in the figure with a transvers hole of diameter d-14 mm/ Material of the beam is AISI 1040 CD steel (S-590 stress concentration factor as 2.2. K Pa, Sy 490 MPa). Take...
A support bar for a piece of machinery has a rectangular cross- section 1.50 in across,...
A support bar for a piece of machinery has a rectangular cross- section 1.50 in across, and 0.50 in high. The tensile load varies from a maximum of 15,000 lbs, to a minimum of 7500 lbs. Rapid cycling for many millions of cycles is expected. The bar is made from SAE 5140 OQT 400 Steel. Compute the factor of safety (design factor) for the bar.
The shown frame ABC has beam AB with a rectangular cross section of 150 mm by...
The shown frame ABC has beam AB with a rectangular cross section of 150 mm by 200 mm. Attached rod CB has a cross sectional area of 1250 mm2 and is pin-connected to beam AB at B. Use the Stiffness Method to Find the force in BC and the reactions at A a) Use the Stiffness Method to find the force in BC and the reactions at A If the horizontal displacement at B0.01688 mm, the vertical displacement at B...
The stepped shaft shown at right has constant bending moment of 40 N.m at the step
1) The stepped shaft shown at right has constant bending moment of 40 N.m at the step, transmits 75 N.m constant torque and rotates at constant 500 rpm. The shaft was machined from 1040 cold-rolled steel with D = 22.8 mm, d = 19 mm and r = 1.9 mm. Determine fatigue factor of safety for infinite life with reliability of 99%. Use Case 3) Goodman failure and ignore Neuber notch sensitivity. 2) Check factor of safety for fatigue failure of...
The shaft shown in Figure is supported by bearings cach end, which have bores of 20.0...
The shaft shown in Figure is supported by bearings cach end, which have bores of 20.0 mm. Design the shaft to carry the given load if it is steady and the shaft is stationary. Make the dimension a as large as possible while keeping the stress safe. Determine the required diameter in the middle portion. The maximum fillet permissible is 2.0 mm. Use SAE 1137 cold-drawn steel. Use a design factor of 3 The material properties are as follows:- Q-1...
I. The countershaft shown in the Fig Q1 has two spur gears mounted on it with teeth cut wi a 20 pressure angle....
I. The countershaft shown in the Fig Q1 has two spur gears mounted on it with teeth cut wi a 20 pressure angle. The shaft (grooved) is to be made of cold-drawn AISI 1040 steel havin Sut 779 MPa and S,-593 MPa, an elongation of 19% and HB-262. You are asked to size the shaft for safe operation according to DE-Elliptic criterion by using a factor of safety of 2.5 and a reliability of 99 percent. The stress-concentration factors for...
1. The countershaft shown in the Fig QI has two spur gears mounted on it with teeth cut with a 20 pressure angle...
1. The countershaft shown in the Fig QI has two spur gears mounted on it with teeth cut with a 20 pressure angle. The shaft (grooved) is to be made of cold-drawn AISI 1040 steel having Sut= 779 MPa and S,-593 MPa, an elongation of 19% and HB-262. You are asked to size the shaft for safe operation according to DE-Eilliptic criterion by using a factor of safety of 2.5 and a reliability of 99 percent. The stress-concentration factors for...
1. Consider a bar under tension. The bar has length L, rectangular cross-section of sides b...
1. Consider a bar under tension. The bar has length L, rectangular cross-section of sides b and h, Young's modulus E, density p, and applied tensile force P. a) If all parameters are fixed except for h, find the value of h that minimizes the mass of the bar under stress, elongation, and stiffness constraints. Assume safety factors oo, Os, and Ok and failure values o*, 8*, and k* b) Also find the minimum mass of the bar m under...
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
The cold drawn AISI 1040 steel bar with 25-mm width and 10-mm thick has a 6- mm diameter thru hole in the center of the plate. The plate is subjected to a completely reversed axial load that fluctuates from 12kN to 28kN. Use notch sensitivity of 0.83. (40 points) a. Estimate the fatigue factor of safety based on yielding criteria. b. Estimate the fatigue factor of safety based on Goodman and Morrow criteria.
please draw and solve show every thing details “”
Question 3 128 Marks 2 rectangular beam shown in the figure is subjected to a fluctuating axial force. It fluctuates between 5 kN and 15 kN keeping its direction. The beam is to be machined to the dimensions shown in the figure with a transvers hole of diameter d-14 mm/ Material of the beam is AISI 1040 CD steel (S-590 stress concentration factor as 2.2. K Pa, Sy 490 MPa). Take...
The shown frame ABC has beam AB with a rectangular cross section of 150 mm by 200 mm. Attached rod CB has a cross sectional area of 1250 mm2 and is pin-connected to beam AB at B. Use the Stiffness Method to Find the force in BC and the reactions at A a) Use the Stiffness Method to find the force in BC and the reactions at A If the horizontal displacement at B0.01688 mm, the vertical displacement at B...
The shaft shown in Figure is supported by bearings cach end, which have bores of 20.0 mm. Design the shaft to carry the given load if it is steady and the shaft is stationary. Make the dimension a as large as possible while keeping the stress safe. Determine the required diameter in the middle portion. The maximum fillet permissible is 2.0 mm. Use SAE 1137 cold-drawn steel. Use a design factor of 3 The material properties are as follows:- Q-1...
I. The countershaft shown in the Fig Q1 has two spur gears mounted on it with teeth cut wi a 20 pressure angle. The shaft (grooved) is to be made of cold-drawn AISI 1040 steel havin Sut 779 MPa and S,-593 MPa, an elongation of 19% and HB-262. You are asked to size the shaft for safe operation according to DE-Elliptic criterion by using a factor of safety of 2.5 and a reliability of 99 percent. The stress-concentration factors for...
1. The countershaft shown in the Fig QI has two spur gears mounted on it with teeth cut with a 20 pressure angle. The shaft (grooved) is to be made of cold-drawn AISI 1040 steel having Sut= 779 MPa and S,-593 MPa, an elongation of 19% and HB-262. You are asked to size the shaft for safe operation according to DE-Eilliptic criterion by using a factor of safety of 2.5 and a reliability of 99 percent. The stress-concentration factors for...
1. Consider a bar under tension. The bar has length L, rectangular cross-section of sides b and h, Young's modulus E, density p, and applied tensile force P. a) If all parameters are fixed except for h, find the value of h that minimizes the mass of the bar under stress, elongation, and stiffness constraints. Assume safety factors oo, Os, and Ok and failure values o*, 8*, and k* b) Also find the minimum mass of the bar m under...
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