Experimental investigation of p-section concrete beams under contact explosion and close-in explosion conditions

Experimental investigation of p-section concrete beams under contact explosion and close-in explosion conditions

This paper presents the results of an experimental investigation on explosive breaching of p-section concrete beams. Twenty three p-section concrete beams with a 100 cm length were tested. TNT charges were placed at three positions: contact detonation in the center, contact detonation above the web...

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Main Authors: Zhen Li, Yan Liu, Jun-bo Yan, Wen-li Yu, Feng-lei Huang
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2018-10-01
Series:Defence Technology
Online Access:http://www.sciencedirect.com/science/article/pii/S2214914718302897
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spelling doaj-eb4baf6417d44a589b48061cd64ba9872021-05-02T16:12:55ZengKeAi Communications Co., Ltd.Defence Technology2214-91472018-10-01145540549Experimental investigation of p-section concrete beams under contact explosion and close-in explosion conditionsZhen Li0Yan Liu1Jun-bo Yan2Wen-li Yu3Feng-lei Huang4State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing, 100081, China; Department of Nuclear Engineering, Xi'an Research Institute of High-Tech, Shanxi Xi'an, 710025, ChinaState Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing, 100081, China; Corresponding author.State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing, 100081, ChinaDepartment of Nuclear Engineering, Xi'an Research Institute of High-Tech, Shanxi Xi'an, 710025, ChinaState Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing, 100081, ChinaThis paper presents the results of an experimental investigation on explosive breaching of p-section concrete beams. Twenty three p-section concrete beams with a 100 cm length were tested. TNT charges were placed at three positions: contact detonation in the center, contact detonation above the web and close-in detonation in the center. The external and internal breach parameters of the panels were evaluated by measuring the diameter of the ejection crater, spalling crater and breach hole created by the charge detonation. The experimental results were compared to predict values obtained by the analytical models proposed by McVay, Morishita and Remennikov. A modified breach with crater limit line and breach without crater limit line were put forward based on the experimental results. The maximum cross-sectional destruction area ratio (MCDAR) values were used to evaluate the damage degree. The maximum value of MCDAR reached 0.331 corresponding to the C5 experimental condition, of which explosion occurred above the web. Keywords: P-section concrete beam, Contact explosion, Close-in explosion, Explosive breachhttp://www.sciencedirect.com/science/article/pii/S2214914718302897
collection DOAJ
language English
format Article
sources DOAJ
author Zhen Li
Yan Liu
Jun-bo Yan
Wen-li Yu
Feng-lei Huang
spellingShingle Zhen Li
Yan Liu
Jun-bo Yan
Wen-li Yu
Feng-lei Huang
Experimental investigation of p-section concrete beams under contact explosion and close-in explosion conditions
Defence Technology
author_facet Zhen Li
Yan Liu
Jun-bo Yan
Wen-li Yu
Feng-lei Huang
author_sort Zhen Li
title Experimental investigation of p-section concrete beams under contact explosion and close-in explosion conditions
title_short Experimental investigation of p-section concrete beams under contact explosion and close-in explosion conditions
title_full Experimental investigation of p-section concrete beams under contact explosion and close-in explosion conditions
title_fullStr Experimental investigation of p-section concrete beams under contact explosion and close-in explosion conditions
title_full_unstemmed Experimental investigation of p-section concrete beams under contact explosion and close-in explosion conditions
title_sort experimental investigation of p-section concrete beams under contact explosion and close-in explosion conditions
publisher KeAi Communications Co., Ltd.
series Defence Technology
issn 2214-9147
publishDate 2018-10-01
description This paper presents the results of an experimental investigation on explosive breaching of p-section concrete beams. Twenty three p-section concrete beams with a 100 cm length were tested. TNT charges were placed at three positions: contact detonation in the center, contact detonation above the web and close-in detonation in the center. The external and internal breach parameters of the panels were evaluated by measuring the diameter of the ejection crater, spalling crater and breach hole created by the charge detonation. The experimental results were compared to predict values obtained by the analytical models proposed by McVay, Morishita and Remennikov. A modified breach with crater limit line and breach without crater limit line were put forward based on the experimental results. The maximum cross-sectional destruction area ratio (MCDAR) values were used to evaluate the damage degree. The maximum value of MCDAR reached 0.331 corresponding to the C5 experimental condition, of which explosion occurred above the web. Keywords: P-section concrete beam, Contact explosion, Close-in explosion, Explosive breach
url http://www.sciencedirect.com/science/article/pii/S2214914718302897
work_keys_str_mv AT zhenli experimentalinvestigationofpsectionconcretebeamsundercontactexplosionandcloseinexplosionconditions
AT yanliu experimentalinvestigationofpsectionconcretebeamsundercontactexplosionandcloseinexplosionconditions
AT junboyan experimentalinvestigationofpsectionconcretebeamsundercontactexplosionandcloseinexplosionconditions
AT wenliyu experimentalinvestigationofpsectionconcretebeamsundercontactexplosionandcloseinexplosionconditions
AT fengleihuang experimentalinvestigationofpsectionconcretebeamsundercontactexplosionandcloseinexplosionconditions
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