Crack Propagation Rate Calculator
Paris law fatigue crack growth rate.
Work It Out And Get Clear Answers
Paris law fatigue crack growth rate.
Crack Propagation Rate Estimator
Enter your numbers below for an instant estimate.
How It Works
Key concepts behind this calculator
Enter Values
Fill in each field with your own numbers.
Calculate
Press Calculate to see the result.
Review
Read the breakdown and the explanation.
Adjust
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Crack Propagation Rate Quick Guide
Typical values for reference.
| Stress range (MPa) | Crack length (mm) | Geometry factor | Crack growth |
|---|---|---|---|
| 100 | 5 | 1.12 | 8.3 mm per million cycles |
| 50 | 5 | 1.12 | 1.04 mm per million cycles |
| 200 | 5 | 1.12 | 66.38 mm per million cycles |
| 100 | 2.5 | 1.12 | 2.93 mm per million cycles |
| 100 | 10 | 1.12 | 23.47 mm per million cycles |
| Rule of thumb: check your inputs, use the result as a guide and round sensibly. | |||
Crack Propagation Rate FAQ
Answers to common questions about this calculator.
da/dN = C × (ΔK)^m, with ΔK = Δσ × Y × √(πa).
It uses the default inputs shown and the formula described above. Change any value and press Calculate to see how the result moves.
It is an estimate based on the inputs you enter. Check real quotes, labels, product data or official guidance for important decisions.
Yes. Replace each input with your own figures and press Calculate to update the result.