Calculator
for a single notched hinge 

Diameter hole D 
10^{3} m 
Ridge height h 
10^{3} m 
Plate thickness t 
10^{3}
m 
Young's modulus E 
10^{9}
Pa 
Poisson constant v 

Elastic limit R_{p0.2} 
10^{6}
Pa 

Modulus of elasticity for plane strain E 
10^{9}
Pa 
Normal stiffness cxx 
10^{6}
N/m 
Ratio shearing stiffness to tensile stiffness 

Rotational stiffness k 
Nm/rad 
Maximum angle of rotation ψ_{max} 
10^{3}
rad 
Maximum angle of rotation α_{max} 
deg 
Maximum torque T = k ψ 
Nm 
Calculated values based on the Design chart for cylindrical
hole hinges (Figure 14.6)Example of a flexure mechanism with
multiple hole hinges; credit card sized piezo actuated nano
precision XY stage with motion amplifier (Figure
14.13). 

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