Microstructure-Properties: I Fracture Toughness - Materials Science ...
Microstructure-Properties: I Fracture Toughness - Materials Science ...
Microstructure-Properties: I Fracture Toughness - Materials Science ...
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
16<br />
Objective<br />
Overview<br />
Crack<br />
Minimztn.<br />
Energy<br />
Absrptin.<br />
[Hertzberg]<br />
Laminate Composites<br />
• The weakness of such layers of inclusions, which provide planes on<br />
which crack nucleation is relatively easy, can however be exploited.<br />
• By providing planes of low crack resistance perpendicular to the<br />
anticipated crack propagation direction, a crack can be deflected,<br />
thereby reducing the load at the crack tip.<br />
• In designing a laminate composite, it is important to balance the<br />
fracture toughness (brittleness) against the interfacial weakness.<br />
The more brittle the matrix (layers), the weaker the interfaces<br />
between the layers need to be. Example: Wood, Mollusc shells
Change language