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BROWSE대한건축학회 논문집(구조계)2019-02 > DETAIL
  LITERATURE >JOURNALS [383151] Download the full text :   
Title   고강도콘크리트에 대한 기존 내충격 성능평가식의 비상체 선단형상계수 유효성 평가 실험 연구 / Experimental Study on Validation of Nose Shape Factors of Projectile in Existing Impact formulas for High-Strength Concrete
Authors   김상희(Kim, Sang-Hee) ; 강현구(Kang, Thomas H.-K.) ; 홍성걸(Hong, Sung-Gul)
Organization   대한건축학회
Source   대한건축학회논문집 구조계, Vol.35 No.02(2019-02)
Page   Start Page(13) Total Page(8)
ISSN   1226-9107
Classification   구조  
Keywords   고강도콘크리트 ; 비상체 선단형상계수 ; 내충격 성능평가식 ; 관입깊이//High-Strength Concrete ; Nose Shape Factor of Projectile ; Impact Formula ; Penetration Depth
Abstract2   This study was conducted in order to validate the nose shape factors of projectile in existing impact formulas for high-strength concrete in the event of collision with high-speed projectiles. In order to conduct the high-speed impact experiment, specified concrete strengths of 35, 100, and 120 MPa were prepared and tested in collision with both conical and hemispherical projectiles. The results showed that the measured penetration depth did not decrease linearly as concrete strength increased. Comparing the ratio penetration depth to the kinetic energy of the conical and hemispherical projectiles, the difference in the ratios for high strength concrete was observed to decline as concrete strength increased. However, in the modified NDRC and the Hughes formulas, the difference in the predicted penetration depth of the conical and hemispherical projectiles was constant despite increasing concrete strength. The modified NDRC and Hughes formulas should be improved upon so as to be applied to high strength concrete.
Location   대한건축학회