to Excel. • The Nominal Carbon column specifies the carbon content of a given grade of Steel. • Fatigue is given in Stress after 1 million cycles • Yield and Ultimate Strength are given in MPa (Mega Pascal) • Hardness is measured using the Brinell hardness test Generate 4 graphs (use X-Y Scatter graph type) and add a linear trend line to each graph Fatigue strength vs Carbon content • Yield Strength vs Carbon content • Ultimate Strength vs Carbon content • Brinell Hardness vs Carbon content ●

to Excel. • The Nominal Carbon column specifies the carbon content of a given grade of Steel. • Fatigue is given in Stress after 1 million cycles • Yield and Ultimate Strength are given in MPa (Mega Pascal) • Hardness is measured using the Brinell hardness test Generate 4 graphs (use X-Y Scatter graph type) and add a linear trend line to each graph Fatigue strength vs Carbon content • Yield Strength vs Carbon content • Ultimate Strength vs Carbon content • Brinell Hardness vs Carbon content ●

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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A-10 Typical properties of carbon and alloy steels. Ultimate strength, s, Yield strength, s, Percent Material SAE no. Condition ksi MPa ksi MPa elongation 1020 Annealed 57 393 43 296 36 1020 Hot rolled 65 448 48 331 36 1020 Cold drawn 75 517 64 441 20 1040 Annealed 75 517 51 352 30 1040 Hot rolled 90 621 60 414 25 1040 Cold drawn 97 669 82 565 16 1040 WQT 700 WQT 900 127 876 93 641 19 1040 118 814 90 621 22 1040 WQT 1100 WQT 1300 107 738 80 552 24 1040 87 600 63 434 32 1080 Annealed 89 614 54 372 25 1080 OQT 700 OQT 900 OQT 1100 OQT 1300 189 1303 141 972 12 1080 179 1234 129 889 13 1080 145 1000 103 710 17 1080 117 807 70 483 23 1141 Annealed 87 600 51 352 26 1141 Cold drawn 112 772 95 655 1141 14 OQT 700 OQT 900 OQT 1100 OQT 1300 193 1331 172 1186 1141 9 146 1007 129 1141 889 15 116 800 97 1141 669 20 94 648 68 469 28 4140 Annealed 95 655 60 4140 414 OQT 700 OQT 900 OQT 1100 OQT 1300 231 26 4140 1593 212 1462 187 1289 12 4140 173 1193 147 1014 15 4140 131 903 118 18 814 101 5160 696…
70% 5. Fatigue data of steel is showed in the following stress-cycle curve. Write down the values of steel endurance limit and steel fatigue strength at 10 cycles in the spaces provided below. 5.1. Steel Endurance Limit: ksi 5.2. Steel Fatigue Strength at 105 cycles: ksi SN Curve 50 45 40 Steel 35 30 Aluminium 20 15 10 10 10 10 10 Number of cycles 10 10 10 Page 5 of 6 (s) ssans
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
Question 8. The following figure represents three hardness-testing techniques of materials. Describe their specifications, how there are conducted and their potential applications? 8 - Shape of Indentation Test Indenter Side View Top View Load Brinell 10-mm sphere P of steel or tungsten carbide Vickers Diamond 136° microhardness ругamid Rockwell and 60 kg) 100 kg } Rockwell 150 kg) Diamond 120° superficial cone: s - in.- diameter Rockwell 15 kg 30 kg } Superficial Rockwell 45 kg) steel spheres
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2-15 Brinell hardness tests were made on a random sample of 10 steel parts during process- ing. The results were Ha values of 230, 232(2), 234, 235(3), 236(2), and 239. Estimate the mean and standard deviation of the ultimate strength in kpsi. Ans: 50.111 kpsi Som- / -1 bpci
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