Tension Test - Tension Test TAM 202 By Carter Lindborg...

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Tension Test TAM 202 By: Carter Lindborg Performed: 2/25/2009 Performed with: Madeline Schiesser TA: TA signed the data on page:
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Procedure All three tests were run as described in the lab manual, however for the calibration the Y axes calibration factor was recorded as it was posted on the plotter rather than calculation it by hand. The X axes calibration factor was found as described in the lab manual. Questions 1. Re-label both axes of all plots for the steel and aluminum specimens in appropriate physical units of stress and strain. Show your calculations determining the scales. Sketch specimens and give dimensions. The plots for the steel and aluminum specimens are given in the appendix. The calibration factor for the X axes was calculated as shown from the graph shown where a large box is one inch and the small boxes are equal to .1 in.:
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=( )( ) Calibration Factor Actual Distance Distance On Plotter =. . Calibration Factor 010 in4 9 in =. 00204 inin The graphs were rescaled so that the X axes shows strain while the Y axes shows stress. The method in which this was calculated for the graph of the steel specimen is shown for the Y axes; = σ FA = × F Y 2000 lbsin = = × =. )×(. =. A
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