Maurice Tutor

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  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 08 Feb 2018 My Price 6.00

Hall-Petch equation

The yield stress of many metals, cr Y , varies with the size of the grains. Often, the relationship between the grain size, d, and the yield stress is modeled with the Hall-Petch equation:

(a) Determine the constants cr0 and k such that the Hall-Petch equation will best fit the data. Plot the data points (circle markers) and the Hall-Petch equation as a solid line. Use the Hall-Petch equation to estimate the yield stress of a specimen with a grain size of 0.003 mm.

(b) Use the user-defined function QuadFi t from Problem 6.22 to find the quadratic function that best fits the data. Plot the data points (circle markers) and the quadratic equation as a solid line. Use the quadratic equation to estimate the yield stress of a specimen with a grain size of 0.003 mm.

 

Answers

Maurice Tutor
(5)
Status NEW Posted 08 Feb 2018 10:02 PM My Price 6.00

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