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Fracture toughness (K_IC) is resistance to crack propagation: higher means harder to break even with flaws.
Guida passo passo
- 1Input material properties and defect size
- 2Calculate stress intensity factor
- 3Determine fracture criterion
Esempi risolti
Ingresso
Steel K_IC ≈ 100 MPa√m (tough)
Risultato
vs. Ceramic K_IC ≈ 5 MPa√m (brittle)
Errori comuni da evitare
- ✕Confusing toughness with strength
- ✕Not accounting for stress concentration
Domande frequenti
Why do ceramics have low toughness?
No crack blunting mechanism; brittle failure from small flaws.
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