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Chemistry
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13 Dec 2019

How would you define 'toughness' in the case of elastic deformation; plastic deformation; and fast fracture?

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Patrina Schowalter
Patrina SchowalterLv2
17 Dec 2019
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Related questions

What is the change in side length of a brass rod 3 mm in diameter right before plastic deformation? The specific brass alloy has a yield strength of 125 MPa, a Young’s modulus of 100 GPa, and a Poisson’s ratio of 0.331.


1- The yield strength is determined as:

a)max. stress on the engineering stress-strain curve b)the stress at 0.2%of plastic strain. c) the slope of the initial linear portion of the stress- strain curve d)the stress at 0.2% of elastic strain.

2- plastic deformation is:

a)reversible b)irreversible c)occurs along the (111)plane d)occurs before reaching the proportional limit.

3- An aluminum rod with a diameter of 10 mm is subjected to a load of 787 kg, calculate the engineering stress in MPa.

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