About Stress Concentration Factor Calculator

The Stress Concentration Factor Calculator helps mechanical engineers estimate the maximum stress around notches, fillets, and holes in components. It uses the formula:

σ_max = K_t × σ

Key Points

• σ = Nominal Stress (MPa)
• K_t = Stress Concentration Factor (dimensionless)
• σ_max = Maximum Local Stress (MPa)

Applications

• ✅ Fatigue life estimation
• ✅ Stress analysis in machine design
• ✅ Evaluating design safety
• ✅ Identifying weak points in components

FAQs

1. What is a stress concentration?

A stress concentration occurs at discontinuities (holes, notches, sharp corners) where stress is higher than the average value.

2. What is K_t?

K_t is a dimensionless factor that amplifies stress due to geometry changes.

3. Where can I find K_t values?

K_t values are available in engineering handbooks, charts, or FEA simulations.

4. Why is this important?

Stress concentration is a major cause of fatigue failure in mechanical parts.