Question 4A large consignment of AA 6061 T6 aluminum alloy bars was received by a purchaser. To verifythat the consignment met his specifications, the purchaser sent twelve (12) of the bars to anindependent testing company for determination of tensile properties. The yield strength results,in MPa, determined for the twelve (12) bar samples were as follows:257252 255 257 256 250 252 260 253 258 257Using this yield strength results:(a) Calculate the mean and standard deviation for the sample.(b) Estimate the standard deviation of the mean (SDOM) for the sample.253(c) Determine the 95% confidence interval on the mean yield strength for the consignment ofbars.

Step 1: Step 2: Step 3: Step 4:

Answered: Question 4 A large consignment of AA…

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 engineering stress-strain curve below was obtained for a precipitation hardened Aluminum alloy. What is the approximate Yield Strength for this alloy in psi? Engineering Stress Based on Original Area (psi) 50,000 45,000 40,000 35,000 30,000 25,000 20,000 15,000 10,000 5,000 0 O 0.02 0.04 0.06 Aluminum 6061-T6 0.08 0.1 0.12 Engineering Strain (in/in) 0.14 X 0.16 0.18
6. The following engineering stress-strain data were obtained for 0.2% C plain carbon steel. (a) Plot the engineering stress-strain curve (b) Determine the ultimate tensile strength for the alloy (c) Determine the percent elongation at fracture (d) Plot the true stress-strain curve Engineering strain, in./in. Engineering stress, ksi 30 0.001 55 0.002 60 0.005 68 0.01 72 0.02 74 0.04 75 0.06 76 0.08 75 0.1 73 0.12 69 0.14 65 0.16 56 0.18 51 0.19(fracture)
Review Data taken from a stress-strain test for a ceramic are given in the table. The curve is linear between the origin and the first point. No elements selected a(ksi) 50 + 40 - 30 Figure 1 of 1 20 10 + o (ksi) € (in./in.) ex 10(in./in.) 0.5 1.0 1.5 2.0 2.5 33.2 0.0006 45.5 0.0010 Press (ENTER) to select this element. Press ESC) to return to the main menu. Press CTRL+Q) to quit the application. 49.4 0.0014 51.5 0.0018 53.4 0.0022
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Compare full stress-strain curve for steel, brass, copper and aluminium alloy.
Q.3. A cylindrical specimen of cold-worked Brass has a tensile strength of 500 MPa. If the specimen remained cylindrical during deformation and its original radius was 10.6 mm, determine its radius after deformation. The dependence of tensile strength on percent cold work is shown in the following Figure. 140 900 1040 Steel 120 800 700 100 600 Brass -80 500 -60 400 Copper 300 -40 200 10 20 30 40 50 60 70 Percent cold work Tensile strength (MPa)
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1. A tensile test was conducted on a metal "505" specimen and the following stress-strain curves were generated, both curves generated from the same set of data. Use the graphs to fill in the mechanical properties of the material tested in the box below. Don't forget units! Stress vs Strain Stress, psi Stress, psi 80000 70000 60000 50000 40000 30000 20000 10000 0 0.00 80000 70000 60000 50000 40000 30000 20000 10000 0.02 0 0.000 0.002 0.04 0.004 0.06 0.006 0.08 0.10 Strain Stress vs Strain 0.008 0.12 Elastic Modulus, E: 0.2% Offset Yield Strength, oo: Tensile Strength, ou: Breaking Strength, of: % Elongation: 0.14 0.010 0.012 0.014 Strain 0.16 0.18 0.016 0.018 0.20 0.020
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Given the following data for five different materials answer parts A B C D E & F with an explanation
The answer is one of the options below please solve carefully and circle the correct option Please write clear .
1. What is the approximate ductility (%EL) of a cold worked brass that has a yield strength of 345 MPa (50,000 psi) 140 120 1040 Steel 1040 Steel 120 700 600 100 500 Brass Brass eo S400 Brass 300 Copper 40 200 Copper 040 e 00 40 Copper 100 O 10 20 30 40 50 60 70 Percent cold work 200 0 10 20 30 40 50 60 70 Percent cold work O 10 20 30 40 D0 60 70 Percent cold work (a) (b)

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