Young-Ah KimKyeongsik WooWon-Young YooIn-Gul KimJong‐Heon Kim
본 연구에서는 수치적 시뮬레이션을 통해 탄소/에폭시 복합재 적층판의 고속충돌 관통 거동을 연구하였다. 해석은 상용유한요소 해석프로그램인 LS-DYNA를 사용하여 해석을 수행하였고, 적층판 및 구형 강철 충격체 모두 3차원 요소로 모델링 하였다. 해석에는 적층순서가 $[45/0/-45/90]_{ns}$인 16 및 24장으로 된 복합재 적층판을 고려하였으며 충격체의 초기속도는 140-250 m/s 범위의 값을 사용하였다. 해석결과 예측된 잔류속도는 실험값과 비교적 잘 일치하였다. In this paper, the penetration behavior of carbon/epoxy composite laminates subjected to high velocity projectile impact was studied by numerical simulation. The composite laminates made of carbon/epoxy with $[45/0/-45/90]_{ns}$ stacking sequence and the spherical steel impactor were three-dimensionally modeled. The ply numbers of 16 and 24 and the impact velocities in the range of 140-250 m/s were considered. The analysis was performed using an explicit finite element code LS-DYNA. The residual velocity and the amount of damage were predicted and compared to the experimental results.
Gui Ping ZhaoZheng Hao WangJian Xin ZhangChong Du Cho
Gui Ping ZhaoZheng Hao WangJian Xin ZhangChong Du Cho
Young A KimKyeongsik WooHyunjun ChoIn-Gul KimJong‐Heon Kim
J.K. ChenFirooz A. AllahdadiTheodore C. Carney
J. Pernas-SánchezS.M. García-RodríguezJ.A. Artero-GuerreroJ. López-PuenteJ. Costa