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torsion modulus

noun, Physics.

shear modulus

noun, Physics.
1.
a coefficient of elasticity of a substance, expressing the ratio between the force per unit area (shearing stress) that laterally deforms the substance and the shear (shearing strain) that is produced by this force.
Also called modulus of rigidity, modulus of torsion, torsion modulus.
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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torsion-modulus in Science
shear modulus  
See under modulus of elasticity.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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