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Fracture toughness (K_IC) is resistance to crack propagation: higher means harder to break even with flaws.
Przewodnik krok po kroku
- 1Input material properties and defect size
- 2Calculate stress intensity factor
- 3Determine fracture criterion
Rozwiązane przykłady
Wejście
Steel K_IC ≈ 100 MPa√m (tough)
Wynik
vs. Ceramic K_IC ≈ 5 MPa√m (brittle)
Częste błędy do unikania
- ✕Confusing toughness with strength
- ✕Not accounting for stress concentration
Często zadawane pytania
Why do ceramics have low toughness?
No crack blunting mechanism; brittle failure from small flaws.
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