2D ASMR Slime: Non-Newtonian Stretch Simulator

Slime color

Viscoelastic properties

Elasticity (spring stiffness) 18

Base viscosity (damping) 4.5

Shear response 60%

Shear-thickening

Readouts

Shear rate

0.00

Stretch

0.00

Effective viscosity ×

1.00×

How it works

Real slime is a non-Newtonian viscoelastic fluid: it has both spring-like elasticity (it tries to spring back to its rest shape) and rate-dependent viscosity (its resistance to flow depends on how fast you deform it, not just how far).

Each boundary point of the blob obeys a damped spring pulling it back toward its rest position:

F = −K·(pos − rest) − η(γ̇)·vel

K is elasticity — how strongly the shape "remembers" its rest state. η(γ̇) is the effective viscosity, which is not constant: it depends on the local shear rate γ̇ (how fast that point is currently moving relative to its rest position).

Shear-thickening (positive slider, like a cornstarch/oobleck-leaning slime) — the faster you yank a point, the stiffer and more resistant it becomes. Quick tugs feel solid; slow pulls ooze easily.
Shear-thinning (negative slider, like a runnier polymer slime) — the opposite: fast motion lowers the effective viscosity so the slime flows more easily under a quick flick, while slow, steady stress feels thicker.
0% = Newtonian — viscosity stays constant regardless of speed, for comparison.
Elasticity — how hard the blob springs back to its resting round shape after you let go.
Base viscosity — the resistance to motion when shear rate is near zero.

Drag anywhere on the blob to stretch it; release quickly for a poke/jiggle impulse instead of a stretch.

drag to stretch the slime · quick click to poke