Difference between revisions of "Viscoelastic"
From Soft-Matter
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==Definition== | ==Definition== | ||
| − | A substance that displays behavior that is both viscous and elastic is said to be '''viscoelastic'''. | + | A substance that displays behavior that is both viscous and elastic is said to be '''viscoelastic'''. In this sense, viscoelastic materials are said to be a combination of the ideal (elastic) Hookean solid and the (viscous) Newtonian liquid, along with a time a dependence. |
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| + | ==Hookean Solid== | ||
| + | A Hookean solid is one that displays perfectly elastic behavior. This corresponds to the fact that an applied shear stress produces a shear strain in response. Recall that the shear stress (<math>/sigma</math>) is given by the applied force over the area which the force is applied, namely <math>/sigma = F/A</math>. | ||
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| + | ==Newtonian Liquid== | ||
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==References== | ==References== | ||
Revision as of 16:14, 12 September 2009
Definition
A substance that displays behavior that is both viscous and elastic is said to be viscoelastic. In this sense, viscoelastic materials are said to be a combination of the ideal (elastic) Hookean solid and the (viscous) Newtonian liquid, along with a time a dependence.
Hookean Solid
A Hookean solid is one that displays perfectly elastic behavior. This corresponds to the fact that an applied shear stress produces a shear strain in response. Recall that the shear stress (<math>/sigma</math>) is given by the applied force over the area which the force is applied, namely <math>/sigma = F/A</math>.
