A 1.25-in-diameter SAE 1045 CD specimen (see Table A-20) is loaded in compression and torsion. For the torsion shown, wh

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A 1 25 In Diameter Sae 1045 Cd Specimen See Table A 20 Is Loaded In Compression And Torsion For The Torsion Shown Wh 1 (195.12 KiB) Viewed 26 times

A 1.25-in-diameter SAE 1045 CD specimen (see Table A-20) is loaded in compression and torsion. For the torsion shown, what value of P will cause failure, according to the Max Shear Stress failure criterion? A. 78 kip B. 83 kip C. 86 kip D. 89 kip E. None of the above 1056 Mechanical Engineering Design Table A-20 Deterministic ASTM Minimum Tensile and Yield Strengths for Some Hot-Rolled (HR) and Cold-Drawn (CD) Steels 1 [The strengths listed are estimated ASTM minimum values in the size range 18 to 32 mm (to 1 in). These strengths are suitable for use with the design factor defined in Sec. 1-10, provided the materials conform to ASTM A6 or A568 requirements or are required in the purchase specifications. Remember that a numbering system is not a specification.] 7 UNS No. G10060 G10100 G10150 G10180 G10200 G10300 G10350 G10400 G10450 G10500 2 G10600 G10800 G10950 SAE and/or AISI No. 1006 1010 1015 1018 HR CD HR CD HR CD HR CD HR CD 1060 HR 1080 HR 1095 HR Source: Data from 1986 SAE Handbook, p. 2.15. 1020 1030 1035 1040 1045 3 1050 Process- ing HR CD HR CD HR CD HR CD HR CD 4 Tensile Strength, MPa (kpsi) 300 (43) 330 (48) 320 (47) 370 (53) 340 (50) 390 (56) 400 (58) 440 (64) 380 (55) 470 (68) 470 (68) 520 (76) 500 (72) 550 (80) 520 (76) 590 (85) 570 (82) 630 (91) 620 (90) 690 (100) 680 (98) 770 (112) 830 (120) 5 Yield Strength, MPa (kpsi) 170 (24) 280 (41) 180 (26) 300 (44) 190 (27.5) 320 (47) 220 (32) 370 (54) 210 (30) 390 (57) 260 (37.5) 440 (64) 270 (39.5) 460 (67) 290 (42) 490 (71) 310 (45) 530 (77) 340 (49.5) 580 (84) 370 (54) 420 (61.5) 460 (66) 7 kip in Elongation in 2 in, % 30 20 28 20 28 18 25 15 25 15 20 12 18 12 18 12 16 12 15 10 12 10 10 Reduction in Area, % 55 45 50 40 50 40 50 40 50 P 40 42 35 40 35 40 35 40 35 35 30 30 25 25 8 Brinell Hardness 86 95 95 105 101 111 116 126 111 131 137 149 143 163 149 170 163 179 179 197 201 229 248