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Table 1.

Contact model parameters for simulation of gecko attachment strategies

Frictional adhesion  
Coefficient of friction, μ 0.25 
Detachment angle, α* 25° 
Positive shear limit, F∥Max 1.6 N 
JKR  
Modulus of elasticity, E 2.5 MPa 
Poisson ratio, ν 0.5 
Adhesion energy, γ 58.5 mJ m−2 
Radius of curvature, R 5 mm 
Number of contacts 215 
Maximum shear stress, τ 21.7 kPa 
Kendall peel  
Modulus of elasticity, E 2.5 MPa 
Thickness, d 0.5 mm 
Width, b 15 mm 
Adhesion energy, R 5 J m−2 
Frictional adhesion  
Coefficient of friction, μ 0.25 
Detachment angle, α* 25° 
Positive shear limit, F∥Max 1.6 N 
JKR  
Modulus of elasticity, E 2.5 MPa 
Poisson ratio, ν 0.5 
Adhesion energy, γ 58.5 mJ m−2 
Radius of curvature, R 5 mm 
Number of contacts 215 
Maximum shear stress, τ 21.7 kPa 
Kendall peel  
Modulus of elasticity, E 2.5 MPa 
Thickness, d 0.5 mm 
Width, b 15 mm 
Adhesion energy, R 5 J m−2 
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