Keywords |
  • Physics


Viscoplasticity is the reaction to stress of a material which behaves as if it were composed of a plastic solid and a viscous fluid in which the flow is dependent on certain parameters.

The parameters affecting flow are, amongst others, temperature, load and load application gradient.

The Bingham non-linear model is often used to characterise a viscoplastic substance.

This substance will have plasticity and will not flow until a stress threshold t is reached. This is what happens when a thermoplastic is injected, for example.


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