Bending Stress Calculator
Calculate Bending Stress
About Bending Stress
Bending stress is the stress induced in a structural element when subjected to external forces causing it to bend.
Bending Stress Formula:
σ = M × c / I
Where:
- σ = Bending stress
- M = Bending moment
- c = Distance from neutral axis
- I = Moment of inertia
Section Modulus:
S = I / c
Therefore: σ = M / S
Common Shapes:
- Rectangular: S = b×h²/6
- Circular: S = π×d³/32
- I-Beam: Complex calculation
Applications:
• Structural design
• Beam sizing
• Safety analysis
• Material selection
• Load capacity
Understanding bending stress is crucial for ensuring structural safety and preventing beam failure in construction projects.