HW1_Solutions2011

# HW1_Solutions2011 - curves be at these same strains in a...

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Homework 1 Solutions 1. Solution: Solution: Solution: Solution:

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ME 382 Fall 2010 HW1 Solutions Page 2 Solution: Solution: Solution: 2.
ME 382 Fall 2010 HW1 Solutions Page 3

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ME 382 Fall 2010 HW1 Solutions Page 4 Solution: 3.
ME 382 Fall 2010 HW1 Solutions Page 5 Solution:

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ME 382 Fall 2010 HW1 Solutions Page 6 Solution:
ME 382 Fall 2010 HW1 Solutions Page 7 Below is a true stress versus true strain curve from an ME395 lab, in which a tensile test is conducted on an annealed sample of brass. The modulus of brass is 105 GPa. Calculate the slope of the elastic unloading curve in an engineering (nominal) stress-strain curve for the annealed brass below at a nominal strain of (a) 2% and at a nominal strain of (b) 25%. What would the slopes of the unloading

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Unformatted text preview: curves be at these same strains in a true stress-strain curve? (You may neglect the small effects of elastic deformation in your answer.) 4. Solution: ± ² ³ ´µ¶ · , ¸¹ º ± ² ³ » Elastic recovered strain, ¸¹ º , is the same value for true and engineering. ME 382 Fall 2010 HW1 Solutions Page 8 5. Solution: Solution: ME 382 Fall 2010 HW1 Solutions Page 9 ME 382 Fall 2010 HW1 Solutions Page 10 6. Solution: ME 382 Fall 2010 HW1 Solutions Page 11 Solution: ME 382 Fall 2010 HW1 Solutions Page 12 7. Solution: ME 382 Fall 2010 HW1 Solutions Page 13 316 MPa, -196 MPa...
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HW1_Solutions2011 - curves be at these same strains in a...

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