# Modulus of Rigidity

## Shear Modulus (Modulus of Rigidity) is the elasticity coefficient for shearing or torsion force

Modulus of Rigidity - G  - (Shear Modulus) is the coefficient of elasticity for a shearing force. It is defined as

• "the ratio of shear stress to the displacement per unit sample length (shear strain)"

Modulus of Rigidity can be experimentally determined from the slope of a stress-strain curve created during tensile tests conducted on a sample of the material.

The definition of Modulus of Rigidity:

• the ratio of shear stress to the displacement per unit sample length (shear strain)

### Modulus of Rigidity of some Common Materials

MaterialShear Modulus
- G -
(106 psi)(GPa)
Aluminum Alloys 3.9 27
Aluminum, 6061-T6 3.8 24
Aluminum, 2024-T4 4.0 28
Beryllium Copper 6.9 48
Brass 5.8 40
Bronze 6.5 44.8
Carbon Steel 11.2 77
Cast Iron 5.9 41
Chromium 115
Concrete 3.0 21
Copper 6.5 45
Glass 26.2
Glass, 96% silica 2.8 19
Inconel 11.5 79
Iron, Ductile 9.1 - 9.6 63 - 66
Iron, Malleable 9.3 64
Kevlar 2.8 19
Magnesium 2.4 16.5
Molybdenum 17.1 118
Monel metal 9.6 66
Nickel Silver 6.9 48
Nickel Steel 11.0 76
Nylon 0.59 4.1
Phosphor Bronze 5.9 41
Plywood 0.09 0.62
Polycarbonate 0.33 2.3
Polyethylene 0.12
Rubber 0.0003
Structural Steel 11.5 79.3
Stainless Steel 11.2 77.2
Steel, Cast 11.3 78
Steel, Cold-rolled 10.9 75
Tin 18
Titanium, Grade 2 5.9 41
Titanium, Grade 5 5.9 41
Titanium, 10% Vanadium 6.1 42
Tungsten 161
Wood, Douglas Fir 1.9 13
Zinc 43
Z-nickel 11 76
• 1 GPa = 109 Pa = 0.145x106 psi (lbf/in2)
• 1 x 106 psi = 6.9 GPa

## Related Topics

• Mechanics - Forces, acceleration, displacement, vectors, motion, momentum, energy of objects and more
• Statics - Loads - force and torque, beams and columns

## Tag Search

• en: modulus rigidity elasticity shearing torsion
• es: rigidez módulo de cizallamiento elasticidad de torsión
• de: Modul Steifigkeit Elastizität Scher Torsion

## Search the Engineering ToolBox

- "the most efficient way to navigate!"

## Engineering ToolBox - SketchUp Extension - Online 3D modeling!

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your SketchUp model with the Engineering ToolBox - SketchUp Extension/Plugin - enabled for use with the amazing, fun and free SketchUp Make and SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp from the Sketchup Extension Warehouse!

Translate the Engineering ToolBox!
About the Engineering ToolBox!

close