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Structural Engineering and Mechanics
  Volume 65, Number 3, February10 2018 , pages 243-250
DOI: https://doi.org/10.12989/sem.2018.65.3.243
 


A new concept for blast hardened bulkheads with attached aluminum foam
Sung-Ho Kim, Heekyu Woo, Gul-Gi Choi and Kyungho Yoon

 
Abstract
    The use of blast hardened bulkheads (BHBs) is an effective vulnerability hardening technique for improving the survivability of naval warships when internal explosions occur due to being shot by an anti-surface missile. In this paper, a new concept of BHBs reinforced by aluminum (Al) foam is proposed. The new concept can significantly reduce the blast pressures transferred to bulkheads and, unlike conventional BHBs, can be easily installed to operating naval warships. Chamber model blast tests were performed to demonstrate the effectiveness of the Al-foam BHBs and the results are further supported by numerical simulations. Finally, a practical preliminary is proposed for the Al-foam BHBs.
 
Key Words
    survivability; internal blast; blast hardened bulkhead; aluminum foam; chamber model blast test
 
Address
Sung-Ho Kim: Naval Ship Engineering Center, Republic of Korea Navy, Headquarthers, 543 Gamasan-ro, Yeongdeungpo-gu, Seoul 07360, Republic of Korea
Heekyu Woo: Division of Aircraft Research and Development, Korea Aerospace Industries, 78 Gondan 1-ro, Sacheon-si, Gyeongsangnam-do 52529, Republic of Korea
Gul-Gi Choi: Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
Kyungho Yoon: Department of Radiology, Brigham and Women
 

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