Evaluate whether a component under fluctuating (mean + alternating) stress will achieve infinite fatigue life using the modified Goodman relation.
Reference: Modified Goodman DiagramFatigue Life Calculator (Goodman Criterion)
Inputs
Results
- Endurance Limit (Se)
- 180.0MPa
- Corrected Alternating Stress
- 60.0MPa
- Goodman Equation Value
- 0.533(≤1 = safe)
- Achieved Factor of Safety
- 1.88
Formula Used
⚠ For preliminary design and educational use only. Verify all results against applicable codes and standards before use in production or safety-critical applications.
About this calculator
Part of our Mechanical Calculators collection. Beams, bolts, springs, gears, bearings, and core ME calculations.
How it works
Evaluates fatigue life using modified Goodman and Soderberg criteria from mean and alternating stress, material endurance limit, yield strength, and UTS.
Enter your values in the inputs above and click CALCULATE. Results appear on the right without a page reload. No login and no server upload.
Privacy and accuracy
Every calculation runs locally in your browser. Your design data never leaves your device. Results are intended for preliminary engineering work. Always verify critical designs with qualified review and applicable standards before production use.
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