Please answer all 4 parts y1. Given a 10 mm diameter steel bar with S = 1200 MPa and S = 950 MPa, with a machinedsurface, assuming 90% reliability and operating temperature of 200 °C.a) Construct the log log S vs. log log N curveb) What is the fatigue strength corresponding to 2×10° cycles?c) Estimate the number of cycles that the part will last for if the loading is completely.alternating (o = 0) with o= 550 MPa.meanalternatingd) If you want a safety factor of 2 and infinite life, what is the completely alternating stress thatcan be allowed?

Answered: y 1. Given a 10 mm diameter steel bar…

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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Question 2) The non-rotating shaft shown in figure (1) is made by 1050 HR machined steel. The shaft is subjected to a fluctuated bending moment varies from +20klb.in to -10klb.in. The working temperature is 200 Fahrenheit and the desired reliability is 90%. Find a) Ideal endurance strength, b) Marin factors, C) Endurance strength, d) Notch sensitivity factor and e)Safety factor based on Soderberg criterion. The length of the shaft = 7 ft, r =0.5 in, D= 4.2 in and d=4 in. Figure (1)
Please answer part a and b
please written solution by hand
Multi part question The rotating shaft shown is subjected to a constant force. Shaft material is AISI 1020 cold drawn steel. The shaft was turned on a lathe using standard carbide tooling. No heat treatment of the shaft was performed. Assume 99% reliability based on material property data. Shaft dimensions are shown in the illustration below. All dimensions in mm. External force is 3.927 kN. Calculate the highest alternating stress in the shaft, in MPa. -20 -35 D. 180- -500 3R. -280- -175- -50 D. 25 D.
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PLEASE ANSWER ASAP TY! The shaft shown has a diameter of 30 mm and is fixed at points A and B. Shear Modulus = 75 GPa. a) What is the internal torque in segment AC (in N-m)? b) Determine the maximum torsional shear stress experienced at segment AC (in MPa). c) What is the torsional shear stress at the center of the cross-section of the shaft (in MPa)? d) Determine the reactive torque at point B (in N-m).
The shaft below is an engine component that is rotating. It is machined from an unknown ductile material with a measured ultimate tensile strength of 900 MPa. Answer the questions below assuming a desired reliability of 99% and a fatigue fraction, f, of 0.9. Round all values and answers to 2 decimal places Determine the maximum stress in the shaft due to the applied loading (hint: what is the maximum moment?) Estimate the endurance limit (hint: what is the relationship between Se and Sut and don’t forget any necessary modifying factors.) Determine the number of cycles to failure.
The shaft below is an engine component that is rotating. It is machined from an unknown ductile material with a measured ultimate tensile strength of 900 MPa. Answer the questions below assuming a desired reliability of 99% and a fatigue fraction, f, of 0.9. Round all values and answers to 2 decimal places Determine the maximum stress in the shaft due to the applied loading (hint: what is the maximum moment?) Estimate the endurance limit (hint: what is the relationship between Se and Sut and don’t forget any necessary modifying factors.) Determine the number of cycles to failure.
What force is necessary to punch a 30 mm hole in 12.5 mm thick plate if ultimate shear stress is 410 Mpa? A. 480 KN B. 481 KN C. 482 KN D. 483 KN Please solve the Problem elaborately and Refer Machine Elements and Stresses Equations from the figures or use other shortcut Methods you have or you may Solve both or in more different methods the better ?. Your solution will be use as reference for my Future Board Exam preparation/review/study. Thank you so much dear your work will be appreciated much and rated excellently.
Please answer in this format. Sketch: Given: Required: Solution: (Please answer in detailed (step by step). Indicate labels on what you are doing/performing, for example what formula is used) A torque To is transmitted between two flanged shafts by means of four 20-mm bolts. diameter of the bolt circle is 2=150mm. If the allowable shear stress in the bolts is 90 Mpa, what is the maximum permissible torque? Disregard friction between between flanges. The To
A shaft which rotates at a constant speed of 160 rpm is connected by belting to a parallel shaft 750 mm apart, which has to run at 60, 80 and 100 rpm. The smallest pulley on the driving shaft is 40 mm in radius. Determine the remaining radii, the angle of contact, and the length of the belt of the two stepped pulleys for a) crossed belt, and b) an open belt. Consider a slip of 2% at each drive.

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