Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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Damage Behaviors by Particle Impact Energy of $Al_2O_3-TiO_2$ Coated Glass Specimen

$Al_2O_3-TiO_2$ 용사코팅된 유리의 입자충격 에너지에 따른 손상거동

  • Lee, Moon-Hwan (Dept. of Automotive Mechanical Engineering, Gumi University)
  • Published : 2012.12.31
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Abstract

Fracture of brittle material due to dynamic load such a particle impact has been reported by many researchers as the fracture behavior by variation of stress for a short minute. Especially, the brittle material, such a ceramic, applied to the structural component of machine, is considered as the important project. In order to evaluate the improvement of impact resistance, the particle impact test for the $Al_2O_3-TiO_2$ coated glass is practiced. And then, the damage variation according to the impact energy of steel ball was evaluated. There was a large improvement by the ceramic coating on the surface of a glass substrate. The damage volume was especially imported to evaluate damage behavior in quantity. These data were plotted on logarithmic coordinate and experimental equations were induced by data analysis based on test results. And the variation of critical energy for crack initiation was analyzed with critical impact energy when each crack occurs.

Keywords

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