Lab Report3

Lab Report3 - Lab Report #2: Poisson's Ratio Date...

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Lab Report #2: Poisson’s Ratio  Name: Matt Turner Date Submitted: 1/31/08 Section 10-12 Thursday Group Members: 1. John Matthews 2. Ray Casper 3. Nathan Dewey Title: Torsion Testing of Al Alloy 2024-T351 Equipment : Tinius Olsen Torsion Tester (10,000 in-lb Capacity) Specimen : Al Alloy 2024-T351 Abstract A Torsion test was performed on a standard 0.503” round specimen of 2024-T351 Aluminum- Copper Alloy, until failure. At the beginning of the test a troptometer was in place, and it was removed when it reached an angle of 30 degrees. The procedure was performed in order to find values for Shear Modulus, Elastic Modulus, Proportional Limit (tensile), and Yield Strength (tensile). These values were experimentally determined to be 3.593 Msi, 29.1 Msi, 65.2 Ksi, and 54 Ksi, respectively. All in all, the experiment was a success.
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D (in) L 1 (in) L 2 (in) Tmax (in- lb) Phi_T := Troptometer Reading 0.503 5.25 7.1 1581.2 Phi_H := Crosshead Reading cor_Phi_H := Corrected Phi_H deg deg in-lb deg deg in/in psi Phi_T Phi_H Torque slip angle cor_Phi_H strain stress propor. yield 0 0 0 0 0 0 0 0 0.5 1 1.500 83.00 0.15 1.35 0.0008 3322 3004.0816 1.5 2.241 123.07 0.21 2.03 0.0013 4925 4506.1224 2 3.063 168.36 0.36 2.70 0.0017 6738 6008.1632 2.5 3.930 212.11 0.55 3.38 0.0021 8488 7510.204 324.2296 3 5.000 265.04 0.94 4.06 0.0025 10607 9012.2448 1826.27 3.5 5.719 303.79 0.99 4.73 0.0029 12157 10514.286 3328.311 4 6.527 346.00 1.12 5.41 0.0033 13847 12016.326 4830.352 4.5 7.406 390.07 1.32 6.09 0.0038 15610 13518.367 6332.393 5 8.227 430.27 1.46 6.76 0.0042 17219 15020.408 7834.434 6 10.004 512.88 1.89 8.11 0.0050 20525 18024.49 10838.52 7 11.731 578.20 2.26 9.47 0.0059 23139 21028.571 13842.6 8 13.294 637.00 2.47 10.82 0.0067 25492 24032.653 16846.68 9 14.753 678.40 2.58 12.17 0.0075 27149 27036.734 19850.76 10 16.697 727.00 3.17 13.52
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This note was uploaded on 04/07/2008 for the course EMEM ---- taught by Professor Gupta during the Spring '08 term at RIT.

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Lab Report3 - Lab Report #2: Poisson's Ratio Date...

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