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2025 Vol.2, Issue 1

Research Article

Failure Prediction of Concrete Panels Subjected to High Velocity Small-Caliber Projectiles

소형고속발사체에 의한 콘크리트 패널 파괴 예측식

Elena Kim1
,
Min Jae Park2*
김 옐레나1
,
박 민재2*
1Ph.D Program, Division of Architectural and Fire Protection Engineering, Pukyong National University, Busan, 48513, Rep. of Korea
2Assistant Professor, Department of Architectural Engineering, Pukyong National University, Busan, 48513, Rep. of Korea
1국립부경대학교 건축·소방공학부 박사과정
2국립부경대학교 건축공학과 조교수
*Corresponding Author
13 February 2025. pp. 1-11
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Abstract

This study investigates the prediction of the Depth of Penetration (DOP) in concrete panels subjected to high-velocity projectile impacts. Numerical simulations were compared with experimental data to evaluate DOP in concrete panels impacted by small-caliber projectiles. Various empirical models, including the modified NDRC and SP 88 equations, were analyzed, emphasizing the discrepancies in DOP predictions. The NDRC equation was calibrated using new experimental data, enhancing its accuracy for predicting the DOP in fine-grained concrete panels under high-velocity impacts. Results demonstrated that the calibrated NDRC equation provides precise predictions with a deviation of less than 10 %, highlighting its potential for broader applications in high-velocity impact studies.

Keywords
high-velocity impact
depth of penetration (DOP)
crater diameter (CD)
projectile
concrete panel

본 연구는 소형고속발사체 충격에 의한 콘크리트 패널의 관통 깊이(Depth of penetraction) 예측을 다룬다. 수치 해석과 실험 데이터를 비교하여 소형고속발사체의 충격을 받은 콘크리트 패널의 DOP의 예측식을 제안한다. 수정된 NDRC 식과 SP 88 식을 포함한 다양한 제안식들이 분석되었으며, 새로운 DOP 예측식과의 차이를 비교하였다. NDRC 식은 새로운 실험 데이터를 바탕으로 보정되어 고속 충격 하에서 콘크리트 패널에 대한 DOP 예측 정확도를 향상시킨다. 보정된 NDRC 식은 10 % 미만의 오차를 보이며, 고속 충격 성능 연구에서의 적용 가능성을 제시한다.

키워드
고속 충격
관통 깊이(DOP)
크레이터 직경(CD)
발사체
콘크리트 패널
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Information
  • Publisher :Korea Protective Facility Institute
  • Publisher(Ko) :한국방호시설학회
  • Journal Title :Protective Facility
  • Journal Title(Ko) :방호시설
  • Volume : 2
  • No :1
  • Pages :1-11
  • Received Date : 2025-01-07
  • Accepted Date : 2025-01-16
  • DOI :https://doi.org/10.23310/PF.2025.2.1.001
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