The round cross-sectional bar shown below is cut from a steel with a diameter of 35 mm and has the following properties(Sut = 470 MPa, Sy = 401 MPa and fully corrected Se =170 MPa).The bar is loaded at its end with a fluctuating bending load ranges from Fmin = -425 N to Fmax = 851 N.Using a design factor of nd = 1.2, what will be the maximum length of the bar that prevents failure using Modified Goodmancriteria?your answer must be in mm.accepted answer range (+/- 5 mm)FmaxтахFmin

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Answered: The round cross-sectional bar shown…

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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= The L 37 in. long structural member shown below is fabricated with a solid copper core and a stainless steel cover that are bonded together to form a composite shaft. The copper core has diameter Dc = 1.4 in The stainless steel cover has inner diameter (Din)s = 1.4 in. and outer diameter (Dout) ss ss = с = 1.65 in. A torque of T = 104 ft lb is applied at its free end, which is shared between both the copper and stainless steel. Determine the angle of twist of the composite shaft and the maximum shear stresses in the copper core and the stainless steel cover. = -.39 (Tmax) ss = 869.295 (Tmax) c = = 1834.97 L Stainless steel Copper core ? × 0% psi × 0% psi ? × 0%
The figure shows a section of a shaft made of annealed steel with yield strength of 600 MPa and ultimate tensile strength of 700 MPa. Diameters of the shaft are D=30 mm and d=20 mm. Fillet radius of the shoulder section is 2.5 mm. The shaft is rotating and subjected to steady bending moment of M=51 Nm, steady torsion of T=58 Nm and steady axial load of F=14 kN. The operating temperature of the shaft is 20 ᵒC and reliability is 99%. The shaft has ground surface.Calculate the mean component of the shear stress (in MPa)
A bar AISI 1035 steel forged and heat treated with minimum yield strength of 570MPa is subjected to bending moment of 290Nm and a torsional moment of 310Nm. Assuming a factor of safety of 2, determine the diameter of rod using the following theories of failure (i) Maximum Shear stress theory and (ii) Distortion Energy theory (iii) Maximum stress theory, also specify which diameter is considered as safe
12. An aluminum sleeve is held between the head and the nut of a steel bolt. The temperature is raised 40°F from 60°F after the nut is turned 45° against the sleeve from loose contact therewith. Calculate the stresses in the sleeve and the bolt. BOLT IS 1/2" DIA, 16 THREADS/ IN. E(ALUM.) 10 x 106 psi E (STEEL)= 30×106 psi Coefficient of linear expansion STEEL: 6.5 x 10-6 °/°F ALUM: 12 x 10-6/F
Q8
The figure shows a round shaft from a gear transmission. Gears are mounted at points A, C, and E. Supporting bearings are at B and D. The forces transmitted from the gears to the shaft are shown, all acting downward. Compute the maximum stress due to bending in the shaft, accounting for stress concentrations. Draw shear diagram and moment diagram. calculate the safety factor for the material selected. The material is 4150 OQT 1300. Assume that f1 = 9.5 KN , f2= 13.5 KN and f3 =18 KN
Problem 3: A hot rolled steel shaft is subjected to a torsional load that varies from 3000 in-lb clockwise to 1000 in-lb counterclockwise as an applied bending moment at a critical section varies from + 4000 in-lb to 2000 in-lb. The shaft is of uniform cross section and no keyway is present at the critical sec- tion. Determine the required shaft diameter. The material has an ultimate strength of 80,000 psi and a yield strength of 60,000 psi. Base design on a factor of safety N=1.5. Take the endurance limit as half the ultimate strength.
The round cross-sectional bar shown below is cut from a steel with a diameter of 36 mm and has the following properties (Sut = 479 MPa, Sy = 389 MPa and fully corrected Se =177 MPa). The bar is loaded at its end with a fluctuating bending load ranges from Fmin = -423 N to Fmax = 850 N. Using a design factor of nd = 1.2, what will be the maximum length of the bar that prevents failure using Modified Goodman criteria? * your answer must be in mm. * accepted answer range (+/- 5 mm)
A bar is subjected to fluctuating tensile load from 20 kN to 100 kN. The material has yield strength of 240 MPa and endurance limit in reversed bending is 160 MPa. According to the Soderberg principle, the area of cross-section in mm2 of the bar for a factor of safety of 2 is
The figure shows a section of a shaft made of annealed steel with yield strength of 600 MPa and ultimate tensile strength of 700 MPa. Diameters of the shaft are D=30 mm and d=20 mm. Fillet radius of the shoulder section is 2.5 mm. The shaft is rotating and subjected to steady bending moment of M=51 Nm, steady torsion of T=58 Nm and steady axial load of F=14 kN. The operating temperature of the shaft is 20 ᵒC and reliability is 99%. The shaft has ground surface. Calculate the alternating component of the normal stress (in MPa). (If there is no alternating component of the normal stress, enter "0" in the answer box)
The round cross-sectional bar is cut from an AISI 1020 colddrawn steel with a diameter of 25 mm. The bar is loaded at its end with a completely reversed load Fmin = 5 kN, Fmax = -3 kN. Using a design factor of nd = 1.2, what will be the maximum length of the bar that prevents failure using Modified Goodman criteria? What length must be used if a more conservative criteria is used?

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