What is the maximum theoretical possible value of Poisson's ratio for a non-dilatant material?
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A.
0.50
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B.
0.67
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C.
0.25
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D.
0.33
Correct Answer:
A. 0.50
Explanation:
The maximum theoretical value for Poisson's ratio in a non-dilatant (incompressible) material is 0.5. At this specific value, the material's volume remains constant during deformation because the lateral expansion perfectly compensates for the longitudinal compression. Most common materials have a ratio between 0.25 and 0.33, but as the value approaches 0.5, the material becomes increasingly resistant to volume changes, characterizing it as perfectly plastic or incompressible.
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