shearing stress

shear modulus

noun Physics.
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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shear stress

noun Physics.
the external force acting on an object or surface parallel to the slope or plane in which it lies; the stress tending to produce shear.
Also, shearing stress.
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
shear stress
 
n
the form of stress in a body, part, etc, that tends to produce cutting rather than stretching or bending

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Science Dictionary
shear modulus  
See under modulus of elasticity.
shear stress  
A form of stress that subjects an object to which force is applied to skew, tending to cause shear strain. For example, shear stress on a block of wood would arise by fixing one end and applying force to this other; this would tend to change the block's shape from a rectangle to a parallelogram. See also strain.
The American Heritage® Science Dictionary
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