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What does PR stand for?

PR stands for Poisson's Ratio

This definition appears very frequently and is found in the following Acronym Finder categories:

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We have 88 other meanings of PR in our Acronym Attic

Samples in periodicals archive:

Auxetics are materials with a negative Poisson's ratio.
Poisson's ratio is the worst determined elastic characteristic of all because its influence on the eigenfrequencies of the specimen is sufficiently lower than other elastic characteristics and is difficult to measure by classical tests (Frederiksen 1998).
k] is indentation hardness, R is the radius of the hemispherical indenter, P is the force on the indenter, h is the depth on indentation, E is the elastic modulus, and u is Poisson's ratio (usually approximated as 0.