Stress-Strain diagram:
Properties of Newtonian Fluid:
Stress-Strain diagram for Viscous Fluid & Plastics Materials:
- an ideal fluid
- shear stress proportional to shear strain
- straight line on curve
- viscosity = shear stress/ shear strain
- constant velocity
Properties of Non-Newtonian (Psuedoplastic) Fluid:
- viscosity decreases with increasing shear stress, until it reaches a nearly constant value.
- Examples - Ketchup, Blood, Nail polish
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