EngiRef / Civil Engineering Formula

Section Modulus

Section Modulus: Geometric property for bending strength. A Beams formula in civil engineering. Variables S, I and c, each with SI and imperial units.

Beams

Specification

Name
Section Modulus
Discipline
civil
Category
Beams
LaTeX
S = \frac{I}{c}
Description
Geometric property for bending strength
Can solve for
S, I, c
Tags
section, modulus, bending, geometry

Variables

Variables for Section Modulus
SymbolNameUnitSi UnitImperial Unit
SSection Modulusin³
IMoment of Inertiam⁴m⁴in⁴
cDistance to Extreme Fibermmin

Common questions

What is the Section Modulus formula?
Geometric property for bending strength. It sits under Beams, Civil engineering in the EngiRef reference.
What do the symbols in the Section Modulus formula mean?
In Section Modulus, S is section modulus in m³; I is moment of inertia in m⁴; c is distance to extreme fiber in m.