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Technical Glossary Complex shear rate

[Complex shear rate]

The complex shear ratio indicates the hardness of a material. It is the elasticity determined when applying (dynamically) sinusoid ally varying force and is a value that will serve as the basis of a vibration insulator design or shock-absorber design.Dynamic elasticity in the direction of compression is indicated by E* (complex compressive elasticity modulus) ; dynamic elasticity in the direction of shearing is indicated by G* (complex shear rate) .


G* can be broken down into G' (storage shear rate) and G" (loss shear rate) . G' indicates the spring component that a material has (elastic body) ; G" indicates the liquid component (viscous body) .
These values are determined by a dynamic viscosity measurement equipment and will be:

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