Paris Law Crack Growth
Fatigue crack growth rate da/dN = C·(ΔK)^m. Integrates the life from initial to critical crack size.
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Formula, assumptions, and limits
| Symbol | Meaning | Unit |
|---|---|---|
| Paris regression constant | ||
| Paris exponent | ||
| Stress-intensity range | MPa·√m |
Source: Paris & Erdogan (1963) - Crack propagation
In short
Fatigue crack growth rate da/dN = C\u00b7(\u0394K)^m.