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Tensile testing can someone tell me how to calcualte the true strain, engineering strain, true stress and...

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Mechanical Engineering

Tensile testing

can someone tell me how to calcualte the true strain,engineering strain, true stress and engineering stress of thefollowing data o got from tensile testing machine. I assumed areato be constant during the test

i need to draw the curves of the true and engineeing in excelplease

TESTNUMPOINTNUMTIMEPOSITFORCEEXTArea
536810.156-5E-05347.6111-0.001380.0628
536820.58-5E-05348.364100.0628
536830.7770.0007363.02010.0217870.0628
536840.8750.001375398.48460.0413940.0628
536850.9750.002025438.65080.0602760.0628
536861.0860.002675477.7150.0791580.0628
536871.1750.00335515.82420.0987660.0628
536881.2760.004552.94170.1176470.0628
536891.3740.00465590.15090.1365290.0628
5368101.4830.0053625.48690.1554110.0628
5368111.5790.00595659.75770.1742920.0628
5368121.6780.006575693.2570.1924480.0628

Answer & Explanation Solved by verified expert
3.7 Ratings (557 Votes)
Engineering stress The formula for finding engineering stress PA whrere P is the reading from load dial and A is the initial area For    See Answer
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