Circle Round Elastic Section Modulus Calculator

This calculator calculates the section modulus for a round circular section. This is done with the equation below.
﻿
S=πr34 =πD332S = \frac{\pi r^3}{4}\ = \frac{\pi D^3}{32}S=4πr3​ =32πD3​
The following are the variables for the equations...
﻿﻿S
 = the section modulus
﻿﻿r
 = the circle's radius, length xc in the given diagram.
﻿﻿D
 = the diameter of the circle.
﻿
Figure 1: Diagram of the Circle to Calculate the Section Modulus
Circle Round Center Neutral Axis Section Modulus CalculatorInputs﻿﻿Radius, r
:4.00mm​
﻿
﻿﻿Diameter, D
:8.00mm​
﻿
Output﻿﻿Section Modulus, S (eqn 1)
:50.27mm3​
﻿
﻿
Sequation 1=πr34S_{equation\ 1} = \frac{\pi r^3}{4}Sequation 1​=4πr3​
﻿﻿Section Modulus, S (eqn 2)
:50.27mm3​
﻿
﻿
Sequation 2=πD332S_{equation\ 2} = \frac{\pi D^3}{32}Sequation 2​=32πD3​
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