# Modulus of Rigidity

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

## Related Topics

### • Mechanics

The relationships between forces, acceleration, displacement, vectors, motion, momentum, energy of objects and more.

### • Statics

Forces acting on bodies at rest under equilibrium conditions - loads, forces and torque, beams and columns.

## Related Documents

### Bolt Stretching and Tensile Stress

Tensile stress and Hooke's Law.

### Bulk Modulus and Fluid Elasticities

Introduction to - and definition of - Bulk Modulus Elasticity commonly used to characterize the compressibility of fluids.

### Engineering Materials - Properties

Some typical properties of engineering materials like steel, plastics, ceramics and composites.

### Metals - Strength vs. Temperature

The influence of temperature on the strength of metals.

### Metals and Alloys - Bulk Modulus Elasticity

The Bulk Modulus - resistance to uniform compression - for some common metals and alloys.

### Metals and Alloys - Young's Modulus of Elasticity

Elastic properties and Young's modulus for metals and alloys like cast iron, carbon steel and more.

### Poisson's Ratio

When a material is stretched in one direction it tends to get thinner in the other two directions.

### Poisson's Ratios Metals

Some metals and their Poisson's Ratios.

### Polymers - Physical Properties

Densities, tensile strength, elongation, Youngs modulus and Brinell hardness.

### Rotating Shafts - Torque

Torsional moments acting on rotating shafts.

### Section Modulus - Unit Converter

Convert between Elastic Section Modulus units.

### Shafts Torsion

The torsion of solid or hollow shafts - Polar Moment of Inertia of Area.

### Softwood and Hardwood - Structural Strength Classes

Strength classes, bending stress and mean density of hardwood and softwood

### Square Hollow Structural Sections - HSS

Weight, cross sectional area, moments of inertia - Imperial units

### Steel Angles - Unequal Legs

Dimensions and static parameters of steel angles with unequal legs - metric units.

### Steels - Endurance Limits and Fatigue Stress

Endurance limits and fatigue stress for steels.

### Stiffness

Stiffness is resistance to deflection.

### Stress, Strain and Young's Modulus

Stress is force per unit area - strain is the deformation of a solid due to stress.

### Thermoplastics - Physical Properties

Physical properties of thermoplastics like ABS, PVC, CPVC, PE, PEX, PB and PVDF.

### Trusses

Common types of trusses.

### Young's Modulus, Tensile Strength and Yield Strength Values for some Materials

Young's Modulus (or Tensile Modulus alt. Modulus of Elasticity) and Ultimate Tensile Strength and Yield Strength for materials like steel, glass, wood and many more.