2. Given a plate that is 0.12 in thick and constructed from high carbon steel, 490 Brinell hardness, witha machined finish. Assume 95% reliability and an operating temperature of 250 °C. (Hint: to find arelationship between Brinell Hardness and ultimate tensile strength, see Chapter 3 of the textbook).a) Construct the log S- log N curve.b) The loading is completely reversed (omean=0), and infinite life is desired. What alternatingstress can be allowed with a safety factor of 2?

Answered: Image /qna-images/answer/f6d5d989-da83-423d-aea2-1686a0747912.jpg

Answered: 2. Given a plate that is 0.12 in thick…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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Question 1 An aluminium alloy component, is machined on a lathe. The lathe has a mechanical efficiency of 91%. The lathe performs a turning operation on the workpiece which has a diameter of 150 mm and a length of 400 mm. The shear strength of the aluminium alloy work piece is 230 MPa and the tensile strength is 420 MPa. To machine the component, the lathe operator uses a cemented carbide tipped tool, having a rake angle of 6°. Furthermore, the relevant processing parameters are selected from the relevant data provided in a handbook by the lathe tool supplier. Some of the data is reproduced in Tables 1 and 2. Table 1. Surface Cutting Speeds (m/min) Part Material Aluminium Brass Cast Iron Mild Steel Alloy High Speed 75 18 120 28 Steel Tool Material Cemented 180 100 220 170 Carbide Table 2. Typical recommended feeds for turning (mm/rev) Part Material Aluminium Brass Cast Iron Mild Steel Alloy High Speed 0.2 0.15 0.2 0.15 Тool Steel Material Cemented 0.3 0.25 0.4 0.25 Carbide The operator…
Hello Sir.Good Evening I have a question in my homework related machine element lesson. The following below is my question. Please advice. Thank you so much "Design a shaft face journal bearing for a fixed radial load of 1500 lb, while the shaft rotates at 850 rpm. Shaft stress analysis determined that the minimum acceptable diameter is 2.10 in. This is because the shaft is a part of the machine that requires good precision"
Example: Compute the tensile strength and ductility (%EL) of a cylindrical copper rod if it is cold worked such that the diameter is reduced from 15.2 mm to 12.2 mm (0.60 in. to 0.48 in.).
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2) Drawing: A round rod of annealed 302 stainless steel (K = 1300 MPa and n = 0.3) is being drawn from a diameter of 15 mm to a diameter of 12 mm at a speed 0.25 m/s, using a semidie angle of 8º. a. Calculate the percentage reduction, the applied force due to ideal deformation, friction, and inhomogeneous deformation. Assume coefficient of friction of 0.1. b. Calculate the required power, process efficiency, and the die pressure at the exit.
Prove that: in square key, the crushing stress is equal to twice of shearing stress.
Low carbon steel plate that is 1.65 inches thick is to be rolled down to 1.3 inches in a single pass. The plate gets 4% wider as the thickness gets smaller. The steel plate has a 174 MPa yield strength and a 290 MPa tensile strength. The plate enters at a pace of 0.6 inches per minute. The rotating speed is 49.0 rev/min, and the roll radius is 12.8 inches. Calculate: a) Determine the minimum required coefficient of friction that would make this rolling operation possible b) exit velocity of the plate (m/min) c) forward slip (m/min) Please submit the final answers in 2 decimal places
When a solid steel shaft is subjected to a torque of 45,000 in-lbs, the maximum shear stress is 8,000 psi. Find the diameter of the shaft and compute the angle of twist in a length of 5 feet. Unsure of how to solve for answer. Please walk me through the process step-by-step. Please write clearly. Thanks in advance.
1) Orthogonal Cutting: In an orthogonal cutting test on mild steel, the following results are obtained: to = 0.3 mm tc = 0.7 mm w = 3 mm Fc = 1000 N FN = 500 N (Fp in your book) Tool rake y = 0 Calculate: a. Mean angle of friction ß on tool face b. Mean shear stress Ts
Beam loaded as shown in Fig. below. Determine the Following: Reaction support at point B. a. 56KN (Downward Direction) b. 56KN (Upward Direction) c. 35KN (Downward Direction) d. 35KN (Upward Direction) Reaction support at point D. a. 26 KN (Downward Direction) b. 26 KN (Upward Direction) c. 24KN (Downward Direction) d. 24KN (Upward Direction) Shear force equation of section AB. a. -30KN b. 30KN c. -32KN d. 32KN Shear force equation of section CD. a. -24KN b. 24KN c. -28KN d. 28KN Bending moment equation of section BC. a. 26KN(x)+56KN.m b. 26KN(x)-56KN.m c. -26KN(x)+56KN.m d. None of the above. Maximum bending moment of the beam. a. 47KN.m b. 46KN.m c. 48KN.m d. None of the above
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