Predicting through-thickness cone cracking of reinforced concrete slabs struck normally by flat-nosed projectiles

Xian Yuxi; Wen Heming

doi:10.11883/1001-1455(2017)02-0269-05

Volume 37 Issue 2

Mar. 2017

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Xian Yuxi, Wen Heming. Predicting through-thickness cone cracking of reinforced concrete slabs struck normally by flat-nosed projectiles[J]. Explosion And Shock Waves, 2017, 37(2): 269-273. doi: 10.11883/1001-1455(2017)02-0269-05

Citation:

Xian Yuxi, Wen Heming. Predicting through-thickness cone cracking of reinforced concrete slabs struck normally by flat-nosed projectiles[J]. Explosion And Shock Waves, 2017, 37(2): 269-273. doi: 10.11883/1001-1455(2017)02-0269-05

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Predicting through-thickness cone cracking of reinforced concrete slabs struck normally by flat-nosed projectiles

doi: 10.11883/1001-1455(2017)02-0269-05

Xian Yuxi,
Wen Heming^,

CAS Key Laboratory for Mechanical Behavior and Design of Materials, University of Science and Technology of China, Anhui 230027, Hefei, China

Received Date: 2015-08-12
Rev Recd Date: 2015-12-12
Publish Date: 2017-03-25

Abstract

Abstract

A two-stage model is proposed herein to predict the through-thickness cone cracking of a reinforced concrete slab struck transversely by a flat-ended projectile at relatively low velocities. The first stage is penetration, in which the resistive pressure from the concrete medium during the penetration process is composed of two parts: quasi-static resistive pressure and dynamic resistive pressure arising from velocity effect. The second stage is cone cracking, in which the dynamic resistive load is obtained through the punch shear strength for the concrete slab loaded quasi-statically by introducing a dynamic enhancement factor. A semi-analytical equation is derived for predicting the critical impact energy that causes the through-thickness cone cracking of the reinforced concrete slab subjected to impact by the flat-nosed projectile. It transpires that the present model predictions are in good agreement with available test data.
- reinforced concrete slabs,
- through-thickness cone cracking,
- penetration,
- flat-nosed projectiles

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References(9)

References

[1]	Kennedy R P. A review of procedures for the analysis and design of concrete structures to resist missile impact effects[J]. Nuclear Engineering and Design, 1976, 37(2):183-203. doi: 10.1016-0029-5493(76)90015-7/
[2]	Li Q M, Reid S R, Wen H M, et al. Local impact effects of hard missiles on concrete targets[J]. International Journal of Impact Engineering, 2005, 32(1/2/3/4):224-284. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=f836952d7e21bc3f5f0eb712e6968392
[3]	Reid S R, Wen H M. Predicting penetration, cone cracking, scabbing and perforation of reinforced concrete targets struck by flatted faced projectiles[R]. UMIST Report ME/AM/02.01/TE/G/018507/Z, 2001.
[4]	Wen H M, Xian Y X. A unified approach for concrete impact[J]. International Journal of Impact Engineering, 2015, 77:84-96. doi: 10.1016/j.ijimpeng.2014.11.015
[5]	咸玉席, 文鹤鸣.平头弹侵彻半无限混凝土靶的工程模型[J].防护工程, 2012, 34(2):35-38. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=QK201203952455 Xian YuXi, Wen Heming. An engineering model for the penetration of flat-nosed projectiles into semi-infinite concrete targets[J]. Protective Engineering, 2012, 34(2):35-38. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=QK201203952455
[6]	Wen H M, Yang Y. A note on the deep penetration of projectiles into concrete[J]. International Journal of Impact Engineering, 2014, 66:1-4. doi: 10.1016/j.ijimpeng.2013.11.008
[7]	Yankelevsky D Z, Leibowitz O. Punching shear in concrete slabs[J]. International Journal of Mechanical Sciences, 1999, 41:1-15. doi: 10.1016/S0020-7403(97)00086-6
[8]	咸玉席, 文鹤鸣.钢筋混凝土平板冲剪强度的无量纲公式[J].高压物理学报, 2016, 30(4):291-300. http://www.cqvip.com/QK/96553X/201604/669715156.html Xian Yuxi, Wen Heming. Dimensionless formulae for punching shear strength of reinforced concrete slabs[J]. Chinese Journal of High Pressure Physics, 2016, 30(4):291-300. http://www.cqvip.com/QK/96553X/201604/669715156.html
[9]	Sinclair A C E. Drop tests on a reinforced concrete floor at Rogerstone Power Station[R]. TD/SEB/REP/41555/93, 1993.