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Condition #3: The same structural support from Condition 2 is heated from room temperature of 25°C. The support is placed inside a frame on both ends. There is a total clearance of 0.2 mm between the support and its frame. Initial length of the rod is 200 mm. Specify the maximum temperature that the support can be heated to without exerting any stress to the frame.

Condition #3: The same structural support from Condition 2 is heated from room temperature of 25°C. The support is placed inside a frame on both ends. There is a total clearance of 0.2 mm between the support and its frame. Initial length of the rod is 200 mm. Specify the maximum temperature that the support can be heated to without exerting any stress to the frame.

Elements Of Electromagnetics
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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Need help with condition 3 please
Condition #1:E A structural support for a machine is subjected to a static compression load of 20 kN. The support is manufactured from a circular rod made from SAE 1040 Hot Rolled steel. Specify suitable diameter for the cross section of the rod based on the basic size. Steel data are available in Table A-10 from the textbook. Condition #2: The same structural support of the basic size determined in Condition 1 is subjected to a tensile load of 15 kN that is repeated several thousand times over the life of the machine. This load is not an addition to the 20 kN. Specify a suitable steel that is suitable to this application based on the basic size determined in Condition #1. Loading of Condition #1 does not apply here. Condition #3: The same structural support from Condition 2 is heated from room temperature of 25°C. The support is placed inside a frame on both ends. There is a total clearance of 0.2 mm between the support and its frame. Initial length of the rod is 200 mm. Specify the maximum temperature that the support can be heated to without exerting any stress to the frame.
Transcribed Image Text:Condition #1:E A structural support for a machine is subjected to a static compression load of 20 kN. The support is manufactured from a circular rod made from SAE 1040 Hot Rolled steel. Specify suitable diameter for the cross section of the rod based on the basic size. Steel data are available in Table A-10 from the textbook. Condition #2: The same structural support of the basic size determined in Condition 1 is subjected to a tensile load of 15 kN that is repeated several thousand times over the life of the machine. This load is not an addition to the 20 kN. Specify a suitable steel that is suitable to this application based on the basic size determined in Condition #1. Loading of Condition #1 does not apply here. Condition #3: The same structural support from Condition 2 is heated from room temperature of 25°C. The support is placed inside a frame on both ends. There is a total clearance of 0.2 mm between the support and its frame. Initial length of the rod is 200 mm. Specify the maximum temperature that the support can be heated to without exerting any stress to the frame.
A-10 Typical properties of carbon and alloy steels Ultimate strength, s Yield strength.s Percent elongation Material SAE no. Condition ksi. MPa MPa 1020 1020 Annealed Hot rolled Cold drawn 57 65 75 393 448 96 331 43 36 48 1020 64 441 20 1040 1040 1040 1040 1040 1040 1040 Annealed Hot rolled Cold drawn WOT 700 WOT 900 WOT LI00 WQT 1300 75 90 97 127 118 107 517 621 669 876 814 738 600 352 414 565 641 621 552 434 51 60 82 30 25 16 91 90 80 1080 1080 1080 1080 1080 Annealed OQT 700 OQT 900 OQT 100 ÖOT 1300 189 179 145 117 614 1303 1234 1000 807 54 141 129 103 70 372 972 889 710 483 1141 Annealed Cold drawn OQT 700 600 352 655 186 889 26 1141 12, 193 146 116 772 1331 1007 800 95 172 129 97 14 1141 1141 OQT L100 OQT 1300 1141 669 20 1141 469 Annealed OQT 700 OOT 900 OOT 1100 OOT 1300 4140 95 231 17 147 D18 655 1593 60 212 171 414 1462 1193 903 696 26 4140 4140 4140 4140 1289 1014 814 12 15 23 105 263 196 149 115 Oher propertie are approximately the same for all carbon Modulus of clasticity in tension = 30 000 000 psi (207 GPa). Modulus of elasticity in shear wIl 500 000 psi (80 GPa). 5160 5160 S160 5160 S160 Annealed OQT 700 OQT 900 OOT I 100 724 1813 1351 1027 793 40 238 179 76 J641 1234 910 12 17 103 alky siecls Deasity 0.253 th/a. (7680 kg/m' OQT means ofl quenched and tempered. WOT mcans water quenched and tempered.
Transcribed Image Text:A-10 Typical properties of carbon and alloy steels Ultimate strength, s Yield strength.s Percent elongation Material SAE no. Condition ksi. MPa MPa 1020 1020 Annealed Hot rolled Cold drawn 57 65 75 393 448 96 331 43 36 48 1020 64 441 20 1040 1040 1040 1040 1040 1040 1040 Annealed Hot rolled Cold drawn WOT 700 WOT 900 WOT LI00 WQT 1300 75 90 97 127 118 107 517 621 669 876 814 738 600 352 414 565 641 621 552 434 51 60 82 30 25 16 91 90 80 1080 1080 1080 1080 1080 Annealed OQT 700 OQT 900 OQT 100 ÖOT 1300 189 179 145 117 614 1303 1234 1000 807 54 141 129 103 70 372 972 889 710 483 1141 Annealed Cold drawn OQT 700 600 352 655 186 889 26 1141 12, 193 146 116 772 1331 1007 800 95 172 129 97 14 1141 1141 OQT L100 OQT 1300 1141 669 20 1141 469 Annealed OQT 700 OOT 900 OOT 1100 OOT 1300 4140 95 231 17 147 D18 655 1593 60 212 171 414 1462 1193 903 696 26 4140 4140 4140 4140 1289 1014 814 12 15 23 105 263 196 149 115 Oher propertie are approximately the same for all carbon Modulus of clasticity in tension = 30 000 000 psi (207 GPa). Modulus of elasticity in shear wIl 500 000 psi (80 GPa). 5160 5160 S160 5160 S160 Annealed OQT 700 OQT 900 OOT I 100 724 1813 1351 1027 793 40 238 179 76 J641 1234 910 12 17 103 alky siecls Deasity 0.253 th/a. (7680 kg/m' OQT means ofl quenched and tempered. WOT mcans water quenched and tempered.
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