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 atensile strength ( Su) of 108 kpsi, loaded in rotating bending. Obtain the parameters for Marin surface modification factor from Table6-2.The endurance strength iskpsi

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Answered: Estimate the endurance strength (Se) of…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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What is the safety factor against yielding of a 4140 steel shaft, 2.1 in OD, 0.49 inch wall thickness, quenched and tempered at 1000°F, subject to a torsion of 10876 in·lbf and a compressive load of 14292 lbf? (Use Shigley for material properties, and the most accurate failure theory appropriate to the material.)
15.27 For the solid model of a fixture shown in Figure P15-27, the inside surface of the hole is subjected to a temperature increase of 80° C. The right end surfaces are fixed. Determine the von Mises stresses throughout the fixture due to this temperature increase. What is the largest von Mises stress? Is it a concern against yielding of the material? Assume the material is AISI 1020 cold-rolled steel. Figure P15-27. 40 mm 75 mm 30 dia. Fixed 20 rad. 30 mm Fixed 50 mm- 15 mm (All dimensions in mm units) H
Produced from xCy steel material by machining method, the shaft is bedded at C and D points. With the shaft, constant Fy= 820 N forces in the vertical direction and constant Fx= 4,2 kN forces in the axial direction, which do not rotate together. The tensile strength of the shaft material is (sigma)tensile = (sigma)ut = 620 MPa and the yield strength is (sigma)yield = 420 MPa. For 50% reliability, analyze the fatigue damage condition of the shaft sections A and B separately.
Determine the number of cycles (using Goodman) an aluminum part (3003 H12 temper) = 40 MPa. Assume the part is 10 mm. It is operating at room temperature with reliability of can withstand under fully reversed bending stress, oa circular with diameter d 50%. The surface is machined.
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A round steel rod made of structural steel, AISI C1118, As rolled is to be used as a column, centrally loaded with 15 kips; N= 2.75. Determine the diameter for (a) L= 20 in. (b) L= 5 in. (c) the same as (a) and (b) except that the material is AISI 9850, OQT 1100 F. Is there any advantage in using this material rather than structural steel?
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Required information A shaft is loaded in bending and torsion such that M₂ = 66 N-m, T₂ = 42.496 N-m, Mm = 51.858 N-m, and Tm - 33 N-m. For the shaft, Su = 700 MPa and Sy=560 MPa, the true fracture strength is 1045 MPa, and a fully corrected endurance limit of S₂ = 210 MPa is assumed. Let Kf= 2.2 and Kfs=1.8. With a design factor of 2.0, determine the minimum acceptable diameter of the shaft using the methods mentioned in the subsection. Determine the minimum acceptable diameter of the shaft using the DE-Morrow criterion. The diameter of the shaft is mm.
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