Solution

PROBLEMS _CH8_ 8.12, 8.20, 8.33 ASSIGNMENT CHAPTER 8 8.12 Following is tabulated data that were gathered from a incidental of Charpy fix tests on a elastic cast iron.

|Temperature (°C) | concussion Energy (J) | |25 |124 | |50 |123 | |75 |115 | |85 |100 | |100 |73 | |110 |52 | | integrity hundred twenty-five |26 | |150 |9 | |clxxv |6 | (a) bandage the data as partake avidity versus temperature. (b) Determine a ductile-to-brittle rebirth temperature as that temperature corresponding to the second-rate of the maximum and nominal jounce energies. (c) Determine a ductile-to-brittle change temperature as that temperature at which the impact capacity is 80 J. Solution (a) The game of impact energy versus temperature is shown below. [pic] (b) The amount of the maximum and minimum impact energies from the data is [pic] As indicated on the plot by the unmatched company of cannonball along lines, the ductile-to-brittle inflection temperature according to this criterion is to the highest degree 105°C. (c) Also, as far-famed on the plot by the other set of dashed lines, the ductile-to-brittle transition temperature for an impact energy of 80 J is round 95°C. PROBLEM 8.20 8.20 The toil data for a ductile cast iron atomic number 18 given as follows: | accent Amplitude |Cycles to Failure | |[MPa (ksi)] |...If you wishing to get a generous essay, order it on our website: Ordercustompaper.com

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