In this study, the impact properties of aluminum honeycomb core composite are investigated through simulation analysis. The specimens are applied with different impact energies of 50 J, 70 J, and 100 J. The maximum load occurs at 3.7 ms for 50 J, 3.7 ms for 70 J and 2.3 ms for 100 J. The maximum load occurs when the striker is penetrating the upper face sheet in all cases. In case of 50 J impact energy, striker does not penetrate the lower face sheet and honeycomb core sandwich can be stable as the energy of 38 J happens. In case of 70 J impact energy, the striker penetrates into the specimen. The striker then causes the damage to the lower face sheet after penetrating the upper face sheet and the core as the energy of 53 J happens. In case of 100 J impact energy, the striker penetrates through all of the upper face sheet, core and lower face sheet as the energy of 65 J happens. This study can be utilized at the design of aluminum honeycomb core sandwich composite structure by understanding stability through the impact property.

Abstract
 1. 서론
 2. 해석 모델 및 경계조건
 3. 모델의 해석 결과
  3.1 충격에너지 50J의 해석 결과
  3.2 충격에너지 70J의 해석 결과
  3.3 충격에너지 1000J의 해석 결과
 4. 결론
 참고문헌

• 김성수(공주대학교 기계공학과 대학원) | S. S. Kim
• 조재웅(공주대학교 기계자자동차공학부) | J. U. Cho 교신저자