Fracture Toughness and Strength

  • Thread starter cero
  • Start date
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Hi, why does fracture toughness decrease when a material increases in strength?

How do one explain this relationship? Does it have to do with stress vs. strain curve?

Thanks.
 

Mapes

Science Advisor
Homework Helper
Gold Member
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Hi cero, welcome to PF!

We can't just give you the answer, but if you describe your reasoning, you'll likely get helpful comments. Hint: think about the plastic zone at the crack tip.
 

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