HW2 first graph - Lower Yeild Point Stress EXT. (mx10 )...

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STEP LOAD, LBF (KN) STRAIN(E=mm/mm) 1 2.47 5.6 0.0004 24.7247247 2 4.97 11.9 0.0002125 49.7497497 3 7.4 18.2 0.000325 74.0740741 4 9.86 24.5 0.0004375 98.698699 5 12.33 31.5 0.0005625 123.423423 6 14.8 38.5 0.0006875 148.948949 7 17.27 45.5 0.0008125 172.872873 8 19.74 52.5 0.0009375 197.597598 9 22.2 59.2 0.0010571 10 24.7 66.5 0.0011875 247.247247 11 27.13 73.5 0.0013125 271.571572 12 29.6 81.2 0.00145 296.296296 13 31.1 89.6 0.0016 321.321321 14 33.3 112 0.002 15 31.2 224 0.004 312.312312 16 32 448 0.008 320.32032 17 31.5 672 0.012 315.3153.5 18 32 840 0.015 320.32032 19 32.2 1120 0.02 322.322322 20 34.5 1680 0.028 345.345345 21 35.8 1960 0.035 358.358358 22 37 2520 0.045 370.37037 23 38.7 3640 0.065 387.387387 24 39.5 5600 0.1 395.395395 25 40 7840 0.14 400.4004 26 39.6 11200 0.2 396.396396 27 35.7 13440 0.24 357.357357 28 28 14500 0.2589285 280.28028 Ryan Darling 9/07/08 Young's Modulus Of Elasticity Ultimate Tensile Strength Upper Yeild Point Stress E=Lfinal-Loriginal / Gage Length 400MPA E=7.840mm / 56mm= .14 mm/mm
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Unformatted text preview: Lower Yeild Point Stress EXT. (mx10 ) STRESS( =/ mm ) 222.222 333.333 Deformation 320.3 N/mm = PL/AE =(40,000N)(56mm)/(99.9mm)(.14mm/mm)= 3139 N/mm 400.4 N/mm 24.7247247 49.7497497 74.0740741 98.698699 123.423423 148.948949 172.872873 197.597598 222.222 247.247247 271.571572 296.296296 321.321321 333.333 312.312312 320.32032 315.3153.5 320.32032 322.322322 345.345345 358.358358 370.37037 387.387387 395.395395 400.4004 396.396396 357.357357 280.28028 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1 0.11 0.12 0.13 0.14 0.15 0.16 0.17 0.18 0.19 0.2 0.21 0.22 0.23 0.24 0.25 0.26 THE CHANGE OF STRAIN DUE TO STRESS Column D STRESS(=N/mm) STRAIN(E=mm/mm)...
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