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Question 3 e stress element is obtained from the critical section of a machine member made...
A 1000N force is applied to a bracket as shown.
A 1000N force is applied to a bracket as shown. The part is made from cast iron. Using the Modified Mohr 1 Theory and a factor of safety of 3, specify a safe diameter for the bar. Material ASTM Class 40 Gray Cast iron Sut = 293.03 MPa, Suc = 965.27 MPa
Please help with this mechanical engineering machine design homework. Please show all work! Thanks 1) Using...
Please help with this mechanical engineering machine design
homework. Please show all work! Thanks
1) Using typical values for strength of ASTM No. 40 cast iron, find the factor of safety corresponding to fracture by the maximum normal stress theory, the Coulomb-Mohr theory and the modified Mohr theory for each of the following stress states: (a) 0x = 10 ksi, oy = -4 ksi (b) Ox = 10 ksi, Txy = 4 ksi (c) Ox = -2 ksi, oy =...
The state of stress at a critical static location of a machine member, as determined by...
The state of stress at a critical static location of a machine member, as determined by strain gauge measurements, is shown on the stress element below. 1) Determine the maximum principle stress, the minimum principal stress, the maximum shear stress, the angle ??, and the angle ??. Note: use the Mohr's circle method from Chapter 4. 2) Determine the factor of safety for this machine member using the distortion energy yield criterion (Von-Mises) from Chapter 5, if the material is...
A component experiences critical static stresses of ?x, ?y, and ?xy. The component is made of...
A component experiences critical static stresses of ?x, ?y, and ?xy. The component is made of grade 30 gray cast iron with Sut = 215 MPa and Suc = 750 MPa. Determine the factor of safety based on predicting failure by the Brittle Coulomb-Mohr theory. ?x =-500 MPa ?y =-200 MPa ?xy =0MPa
Please complete all of #6 :) your result to that from the previous step). 6. Repeat...
Please complete all of #6 :)
your result to that from the previous step). 6. Repeat the previous problem. This time, the stress state is oz = 10 ksi, oy = - 20 ksi. 7 Gray cast iron with an ultimate tensile strength of 31 lei and an ultimate com 5. It has been determined that the critical stress in a part under a certain load is given by 0r = 10 ksi and oy = 20 ksi. The part...
Question 2 30 Posts The principal normal stresses of a machine member are as follows: 0...
Question 2 30 Posts The principal normal stresses of a machine member are as follows: 0 = 30 Ksi and 2 -15 Ksi. The material is brittle and has an ultimate tensile strength of 42 ksi and ultimate compressive strength of 120 ksi. a. Show the design region and the load line. b. Evaluate the factor safety for the design using the Modified Mohr Theory.
This problem illustrates that the factor of safety for a machine element depends on the particular...
This problem illustrates that the factor of safety for a machine element depends on the particular point selected for analysis. Here you are to compute factors of safety, based upon the distortion-energy theory, for stress elements at A and B of the member shown in the figure. This bar is made of AISI 1006 cold-drawn steel and is loaded by the forces F=0.55kN, P=4kN, and T=25N·m. Given: Sy=280MPa.NOTE: This is a multi-part question. Once an answer is submitted, you will...
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...
3). The stress tensor at a critical point of a structure from an FEA is (120...
3). The stress tensor at a critical point of a structure from an FEA is (120 0 0 0 = 0 -500 0 MPa 0 0 -300 What is the maximum shear stress value at that point? Assume that the structure is made from a brittle grey cast iron. Experimental tests found that the tensile strength for the material is 152 MPa and the compressive strength is 572 MPa. Applying Mohr's criterion for brittle materials, will the structure be safe?...
(the problem continued on following page, see image below) Solve problem using equation 3-50 see attached...
(the problem continued on following page,
see image below)
Solve problem using equation 3-50 see attached below:
5-86 A solid steel shaft has a gear with ASTM grade 20 cast-iron hub (E = 14.5 Mpsi) shrink- fitted to it. The shaft diameter is 2.001 + 0.0004 in. The specifications for the gear hub are +0.0004 2.000 -0.0000 in ID with an OD of 4.00 + 32 in. Using the midrange values and the modified Mohr theory, estimate the factor of...
Please help with this mechanical engineering machine design
homework. Please show all work! Thanks
1) Using typical values for strength of ASTM No. 40 cast iron, find the factor of safety corresponding to fracture by the maximum normal stress theory, the Coulomb-Mohr theory and the modified Mohr theory for each of the following stress states: (a) 0x = 10 ksi, oy = -4 ksi (b) Ox = 10 ksi, Txy = 4 ksi (c) Ox = -2 ksi, oy =...
The state of stress at a critical static location of a machine member, as determined by strain gauge measurements, is shown on the stress element below. 1) Determine the maximum principle stress, the minimum principal stress, the maximum shear stress, the angle ??, and the angle ??. Note: use the Mohr's circle method from Chapter 4. 2) Determine the factor of safety for this machine member using the distortion energy yield criterion (Von-Mises) from Chapter 5, if the material is...
Please complete all of #6 :)
your result to that from the previous step). 6. Repeat the previous problem. This time, the stress state is oz = 10 ksi, oy = - 20 ksi. 7 Gray cast iron with an ultimate tensile strength of 31 lei and an ultimate com 5. It has been determined that the critical stress in a part under a certain load is given by 0r = 10 ksi and oy = 20 ksi. The part...
Question 2 30 Posts The principal normal stresses of a machine member are as follows: 0 = 30 Ksi and 2 -15 Ksi. The material is brittle and has an ultimate tensile strength of 42 ksi and ultimate compressive strength of 120 ksi. a. Show the design region and the load line. b. Evaluate the factor safety for the design using the Modified Mohr Theory.
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...
3). The stress tensor at a critical point of a structure from an FEA is (120 0 0 0 = 0 -500 0 MPa 0 0 -300 What is the maximum shear stress value at that point? Assume that the structure is made from a brittle grey cast iron. Experimental tests found that the tensile strength for the material is 152 MPa and the compressive strength is 572 MPa. Applying Mohr's criterion for brittle materials, will the structure be safe?...
(the problem continued on following page,
see image below)
Solve problem using equation 3-50 see attached below:
5-86 A solid steel shaft has a gear with ASTM grade 20 cast-iron hub (E = 14.5 Mpsi) shrink- fitted to it. The shaft diameter is 2.001 + 0.0004 in. The specifications for the gear hub are +0.0004 2.000 -0.0000 in ID with an OD of 4.00 + 32 in. Using the midrange values and the modified Mohr theory, estimate the factor of...
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