Home Back

Formula of Elasticity in Physics

Elasticity Modulus Formula:

\[ E = \frac{\sigma}{\varepsilon} \]

Pa
dimensionless

Unit Converter ▲

Unit Converter ▼

From: To:

1. What is Elasticity Modulus?

The Elasticity Modulus (Young's Modulus) is a measure of the stiffness of a material. It defines the relationship between stress (force per unit area) and strain (proportional deformation) in a material in the linear elasticity regime of a uniaxial deformation.

2. How Does the Calculator Work?

The calculator uses the elasticity modulus formula:

\[ E = \frac{\sigma}{\varepsilon} \]

Where:

Explanation: The formula represents the ratio of stress to strain, indicating how much a material will deform under a given load.

3. Importance of Elasticity Calculation

Details: Calculating elasticity modulus is crucial for material selection in engineering, structural design, and understanding material behavior under stress. It helps predict how materials will perform in various applications.

4. Using the Calculator

Tips: Enter stress in Pascals (Pa) and strain as a dimensionless value. Both values must be positive numbers greater than zero.

5. Frequently Asked Questions (FAQ)

Q1: What is the difference between stress and strain?
A: Stress is the force applied per unit area, while strain is the resulting deformation relative to the original dimension.

Q2: What are typical elasticity modulus values for common materials?
A: Steel: ~200 GPa, Aluminum: ~70 GPa, Concrete: ~30 GPa, Wood: ~10 GPa, Rubber: ~0.01-0.1 GPa.

Q3: When is the elasticity modulus formula applicable?
A: It applies in the linear elastic region where stress is proportional to strain (Hooke's Law region).

Q4: What factors affect elasticity modulus?
A: Temperature, material composition, microstructure, and processing methods can significantly affect the modulus.

Q5: How does elasticity modulus relate to material stiffness?
A: Higher elasticity modulus indicates stiffer material that deforms less under the same stress.

Formula of Elasticity in Physics© - All Rights Reserved 2025