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Injection Molding Design Guide

Guide for high quality and cost-effective plastic injection molding.

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3D Scanners

A white paper to assist in the evaluation of 3D scanning hardware solutions.

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This calculator computes the displacement of an annulus plate, clamped on the inner edge, under a ring load.

  Ring Loading Pr  
 Loading Radius rL =    
 Outer Radius ro =    
 Inner Radius ri =    
 Thickness h =    
 Young's modulus E =    
 Poisson's ratio nu =  
 Unit of displacement w =  
 Unit of stress =  


wmax = w(r = ro) = 0.207125815105 mm ~ 0.207 mm


The maximum bending moment occurs at the fixed edge of the plate, r = ri.


The maximum stress occurs at the fixed edge of the plate near surface, r = ri, z = ±h/2.

max = 2.25 MPa ~ 2.25 MPa