Poisson's Ratio · ν = −ε_lateral / ε_axial
unseel.com · Stretch one way, shrink the other
ε_axial 0.000
ν (metal) 0.30
State
Metal ν≈0.30
Rubber ν≈0.50
Auxetic ν<0
Applied load
Unseel.com · Poisson's Ratio