Question 19 / 40:  Which of the following best describes the use of Mohr's circle?
A  It is a graphical representation of hardness indices for engineering materials.
B  It is a graphical method for remembering how stresses and strains transform from one coordinate
system to another by matrix or tensor operations.
C  It is a graphical method for diagonalizing the stress tensor.
D  Mohr's circle is a way of enforcing continuity of stresses and strains in numerical computations.
E  Mohr's circle shows the time dependence of hardness as a result of fatigue.
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Explanation:

Mohr's circle is just a helpful way of remembering or checking coordinate-system transformations. You may see sub-subunit 2.4.3 for additional information.

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Mechanics I ME102

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Attribution:  Stephanie Redfern, Ranjeet (Ron) Agarwala, and Dr. Steve Gibbs. Mechanics I. The Saylor Academy 2014, http://www.saylor.org/courses/me102/
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