The plot below of load vs. extension was obtained using a specimen (shown in the following figure)of an alloy remarkably similar to the aluminum-killed steel found in automotive fenders, hoods,etc. The crosshead speed, v, was 3.3x104 inch/second. The extension was measured using a 2"extensometer as shown (G). Eight points on the plastic part of the curve have been digitized foryou. Use these points to help answer the following questions.1.900800(0.10, 630 )700(0.50, 745)(0.30, 729)600(0.20, 699)(0.40, 741.5)500-(0.004, 458)(0.80, 440 ) -400(0.0018, 405)300D= 3.3 "0.03"200G=2.0"100 -0.10.20.30.40.50.60.70.8Extension, inchesa. Determine the following quamtities. Do not neglect to include proper units in your answer.Young's ModulusTotal elongationYield stressUltimate tensile strengthUniform elongationEngineering strain ratePost-uniform elongationb. Construct a table with the following headings, left-to-right: Extension, load, engineeringstrain, engineering stress, true strain, true stress. Fill in for the eight points on graph.What is the percentage difference between true and engineering strains for the first point?(i.e., % =What is the percentage difference between true and engineering strains for the last point?c. Plot the engineering and true stress-strain curves on a single graph using the same units.х 100)d. Calculate the work-hardening rate graphically and provide the in-in plot along with thevalue of n. How does n compare with the uniform elongation in Part a? Why?e. A second tensile test was carried out on an identical specimen of this material, this timeusing a crosshead speed of 3.3x102 inch/second. The load at an extension of 0.30 inchwas 763.4 lb. What is the strain-rate sensitivity index, m, for this material?spunod 'proT

1. The plot below of load vs. extension was obtaimed using a specimen (shown in the following figure) of an alloy remarkably similar to the alumimum-killed steel found in automotive fenders, hoods, etc. The crosshead speed, v, was 3.3x104 inch/second. The extension was measured using a 2" extensometer as shown (G). Eight points on the plastic part of the curve have been digitized for you. Use these points to help answer the following questions. 900 800 (0.10, 630 ) 700 (0.50, 745) (0.30. 729)

1. The plot below of load vs. extension was obtaimed using a specimen (shown in the following figure) of an alloy remarkably similar to the alumimum-killed steel found in automotive fenders, hoods, etc. The crosshead speed, v, was 3.3x104 inch/second. The extension was measured using a 2" extensometer as shown (G). Eight points on the plastic part of the curve have been digitized for you. Use these points to help answer the following questions. 900 800 (0.10, 630 ) 700 (0.50, 745) (0.30. 729)

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter5: Analysis Of Convection Heat Transfer

Section: Chapter Questions

Problem 5.8P

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