Sub-10-micrometer toughening and crack tip toughness of dental enamel.

@article{Ang2011Sub10micrometerTA,
  title={Sub-10-micrometer toughening and crack tip toughness of dental enamel.},
  author={Siang Fung Ang and Anja Schulz and Rodrigo Pacher Fernandes and Gerold A Schneider},
  journal={Journal of the mechanical behavior of biomedical materials},
  year={2011},
  volume={4 3},
  pages={423-32}
}
In previous studies, enamel showed indications to occlude small cracks in-vivo and exhibited R-curve behaviors for bigger cracks ex-vivo. This study quantifies the crack tip's toughness (K(I0),K(III0)), the crack's closure stress and the cohesive zone size at the crack tip of enamel and investigates the toughening mechanisms near the crack tip down to the length scale of a single enamel crystallite. The crack-opening-displacement (COD) profile of cracks induced by Vickers indents on mature… CONTINUE READING

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