!Required informationA rectangular bar is cut from an AISI 1020 cold-drawn steel flat. The bar is 2.500 in wide by 4/8 in thick andhas a 0.500-in-dia. hole drilled through the center as depicted in Table A-15-1. The bar is concentricallyloaded in push-pull fatigue by axial forces Fa, uniformly distributed across the width. Using a design factorof na = 2, estimate the largest force Fã that can be applied ignoring column action.Determine the endurance limit for this material as well as the value after correction for surface finish, sizing, and loading.The endurance limit for the material iskpsi.The endurance limit after correction iskpsi.

Answered: ! Required information A rectangular…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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A rectangular bar is cut from an AISI 1020 cold-drawn steel flat. The bar is 2.500 in wide by 4/8 in thick and has a 0.500-in-dia. hole drilled through the center as depicted in Table A-15-1. The bar is concentrically loaded in push-pull fatigue by axial forces Fa, uniformly distributed across the width. Using a design factor of na = 2, estimate the largest force Fa that can be applied ignoring column action. What is the largest force that can be applied to the part? (Round the final answer to three decimal places.) The largest force that can be applied is kips.
A rectangular bar is cut from an AISI 1020 cold-drawn steel flat. The bar is 2.500 in wide by 4/8 in thick and has a 0.500-in-dia. hole drilled through the center as depicted in Table A-15–1. The bar is concentrically loaded in push-pull fatigue by axial forces Fa, uniformly distributed across the width. Using a design factor of na = 2, estimate the largest force Fa that can be applied ignoring column action. What are the values of the theoretical stress-concentration factor, the notch sensitivity, and the fatigue stress-concentration factor? The value of the theoretical stress-concentration factor is The value of the notch sensitivity is (Round the final answer to three decimal places.) The value of the fatigue stress-concentration factor is (Round the final answer to three decimal places.)
4. Determine the design stress for bolts in a cylinder cover where the load is fluctuating due to gas pressure. The maximum load on the bolt is 50 kN and the minimum is 30 kN. The load is unpredict- able and factor of safety is 3. The surface of the bolt is hot rolled and the suface finish factor is 0.9. During a simple tension test and rotating beam test on ductile materials (40 C 8 steel annealed), the following results were obtained : Diameter of specimen =12.5 mm; Yield strength= 240 MPa; Ultimate strength= 450 MPa; Endurance limit = 180 MPa. [Ans. 65.4 MPa]
Provide FBD and solution.
In the diagram below shows a circula bar , made of AISI 1040 OQT 1300 steel (SU = 600 MPa), is loaded with an axial tensile loading P. Find the modified endurance strength (SE) and the modified fatigue strength (SF) for the bar if D = 36 mm, d = 30 mm, and r = 2.4 mm. Use the number of cycles tofracture to be 5 × 105. Assume that the surface finish factor, kf, is 0.85, the size factor, kS, is 0.85, and the notch sensitivity factor, qn, is 0.75. Use the following equations if needed,
Calculate the maximum tensile stress developed in a 1/4-20 bolt (Major dia = 0.2500" and Root dia = 0.1959"), 3" long, and a head height of 0.1875", if it is subjected to a load of 426 lbs.
A rectangular bar is cut from an AISI 1018 cold-drawn steel flat. The bar is 1 in wide by 3/8 in thick and has a ¼ in-diameter hole drilled through the center. The bar is subjected to a tension load fluctuating between 800 and 3000 lb. estimate the factors of safety guarding against failure by yielding and by fatigue action. (Assume infinite life is desire)
I need answer in 10 minutes please quickly
Estimate the endurance strength (Se) of a 1.49-in-diameter (d) rod of AISI 1040 steel having a machined finish and heat-treated to a tensile strength ( Su) of 108 kpsi, loaded in rotating bending. Obtain the parameters for Marin surface modification factor from Table 6-2. The endurance strength is kpsi
Calculate the riveted joints, find its efficiency and draw a suitable sketch. Thickness of the plates – t, mm is 12 Width of the plates – b, mm is 150 Load – P, kN is 20 Note. Choose a suitable material, determine its tearing stress. Take permissible shearing stress - teta=0.7sigmat ; Permissible crushing stress - sigmac=1.5sigmat ;
MECH.ENG. DESIGN 1 PART 2
A solid round bar with diameter of 2 in has a groove cut to a diameter of 1.8 in, with a radius of 0.1 in. The bar is not rotating. The bar is loaded with a repeated bending load that causes the bending moment at the groove to fluctuate between 0 and 25 000 lbf in. The bar is hot-rolled AISI 1095, but the groove has been machined. Determine the factor of safety for fatigue based on infinite life and the factor of safety for yielding. Plars & .

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