Young's Modulus
Stress-Strain Curves for Different Materials
Explore how different materials respond to stress by observing their stress-strain curves. Adjust the applied force and see how the wire stretches, demonstrating elastic and plastic deformation.
Strain (ΔL/L₀)
Stress (σ) [MPa]
Stress: 0 MPa
Strain: 0
Observation:
At 0% force, the wire shows no deformation. Increase force to see elastic and plastic deformation.
The Science Behind Stress-Strain Curves
Key Concepts:
Young's Modulus describes a material's stiffness:
- Elastic Region: Material returns to original shape when force is removed
- Yield Point: Transition from elastic to plastic deformation
- Plastic Region: Permanent deformation occurs
- Fracture Point: Material breaks
Young's Modulus Equation:
E = σ/ε = (F/A)/(ΔL/L₀)
Where E is Young's modulus, σ is stress, ε is strain, F is force, A is cross-sectional area, ΔL is change in length, and L₀ is original length.
