卵形弹中低速侵彻UR50超早强混凝土靶机理

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振动与冲击 ›› 2023, Vol. 42 ›› Issue (6) : 8-15.

论文

宋小东1，汪维1，杨建超2，刘飞2，高伟亮2

作者信息 +

Mechanism of ogive-nose projectiles penetrating a UR50 ultra-early-strength concrete target at middle and low speed

SONG Xiaodong1，WANG Wei1，YANG Jianchao2，LIU Fei2，GAO Weiliang2

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文章历史 +

摘要

为研究早强混凝土的抗侵彻性能和养护龄期的关系，利用35mm弹道炮和35CrMnSiA制缩比卵形弹对两种养护期下产品名为UR50的超早强混凝土进行了侵彻实验，根据实验数据对两种龄期的超早强混凝土的侵彻响应特性进行对比分析。之后为进一步研究弹体侵彻超早强混凝土的响应机理，引入刚性弹侵彻半无限靶的响应模型进行理论研究，并利用别列赞公式分析了超早强混凝土中特种钢纤维对抗侵彻性能的提升。实验结果表明：弹体中低速侵彻超早强混凝土靶的过程可分为冲击开坑和稳定侵彻两个阶段；超早强混凝土养护7天就可以达到养护28天时的抗侵彻性能。利用刚性弹侵彻半无限靶的响应模型对养护7天和28天的超早强混凝土的量纲为一的侵彻深度预测值与实验侵彻深度进行对比，发现其最大相对误差分别为29.13%和17.50%，通过对响应模型中两种龄期超早强混凝土的计算无侧限抗压强度进行修正，使其侵彻深度计算值符合实际结果。

Abstract

To study the relationship between the anti-penetration performance of early-strength concrete and the curing age, the 35 mm ballistic gun and 35CrMnSiA reduced-ratio ogive-nose projectiles were used to conduct penetration experiments on the ultra-early-strength concrete named “UR50” under two curing periods. According to the experimental data, the penetration response characteristics of ultra-early-strength concrete at two curing ages were compared and analyzed. In order to further study the response mechanism of projectile penetrating ultra-early strength concrete, the response model of rigid projectile penetrating semi-infinite target is introduced for theoretical research, and the improvement of the penetration resistance of special steel fiber in ultra-early strength concrete is analyzed by using the Berezan formula. The experimental results show that the process of projectile penetrating ultra-early strength concrete target at low speed can be divided into two stages: impact cratering and stable penetration. The ultra-early-strength concrete can achieve the anti-penetration performance of 28 days after curing for 7 days. The response model of rigid projectile penetrating semi-infinite target was used to compare the predicted penetration depth with the experimental penetration depth of ultra-early-strength concrete with one dimension for 7 days and 28 days, and it was found that the maximum relative errors were 29.13 % and 8.48 %, respectively. The calculated unconfined compressive strength of ultra-early-strength concrete at two ages in the response model was corrected to make the calculated penetration depth conform to the actual results.

导出引用

宋小东1，汪维1，杨建超2，刘飞2，高伟亮2. 卵形弹中低速侵彻UR50超早强混凝土靶机理[J]. 振动与冲击, 2023, 42(6): 8-15

SONG Xiaodong1，WANG Wei1，YANG Jianchao2，LIU Fei2，GAO Weiliang2. Mechanism of ogive-nose projectiles penetrating a UR50 ultra-early-strength concrete target at middle and low speed[J]. Journal of Vibration and Shock, 2023, 42(6): 8-15

参考文献

[1] Wang W，Huo Q，Yang J C，et al. Experimental investigation of ultra-early-strength cement-based self-compacting high strength concrete slabs (URCS) under contact explosions[J]. Defence Technology，2022.
[2] 王后裕，杨建超，方新宇，等. 超早强水泥基自密实高强材料及抗侵彻性能试验研究[J]. 防护工程，2021，43(5): 8-12.
WANG Houyu，YANG Jianchao，FANG Xinyu，et al．Experimental study of super early-strength cementitious self-compacting material and its anti-penetrating performance[J]． Protective Engineering，2021，43( 5) : 8-12．
[3] 陈拴发. 超早强修补混凝土抗折疲劳特性研究[J]. 混凝土，2000(8): 41-43.
CHEN Shuanfa. Flexural fatigue property of specially early strength repairing concrete[J]. Concrete，2000(8): 41-43.
[4] 张国志，李顺凯，屠柳青. 超早强混凝土配制及耐久性研究[J]. 混凝土，2010(3): 134-138.
ZHANG Guozhi，LI Shunkai，TU Liuqing．Study on proportions and durability of ultra high early strength concrete[J]． Concrete，2010 ( 3) : 134-138．
[5] 符策科，姜守东，许达俊，等. 早强复掺水泥混凝土配合比设计及应用[J]. 筑路机械与施工机械化，2015，32(7): 51-54.
FU Ceke，JIANG Shoudong，XU Dajun，et al．Design and application of mix proportion of early strengthened cement concrete[J]． Road Construction and Machinery，2015，32(7) : 51-54．
[6] 杨婉怡. 早强水泥基复合材料的配合比设计及性能研究[J]. 市政技术，2021，39(10): 190-194.
YANG Wanyi， Research on mix proportion design and performance of early strength cement-based composites[J]. Municipal engineering technology，2021，39(10): 190-194.
[7] 丁国博，许金余，胡泽斌，等. 冲击荷载作用下早强EPS混凝土的力学性能[J]. 振动与冲击，2011，30(3): 269-273.
DING Guobo，XU Jinyu，HU Zebin， et al. Mechanical properties of early-strengthened polystyrene concrete under impact load[J]. Journal of Vibration and Shock，2011，30(3): 269-273.
[8] 叶学华，许金余，朱靖塞. 玄武岩纤维对早强混凝土早期动力特性的影响研究[J]. 硅酸盐通报，2015，34(6): 1565-1569.
YE Xuehua， XU Jinyu， ZHU Jingsai. Influence of basalt fiber on the early stage dynamic property of early Strength Concrete[J]. Bulletin of the Chinese Ceramic Society，2015，34(6): 1565-1569.
[9] 刘俊良，许金余，任韦波，等. 纤维早强混凝土不同龄期的动态力学性能[J]. 材料导报，2016，30(24): 157-162.
LIU Junliang，XU Jinyu，REN Weibo， et al. Dynamic mechanical properties of early-strength fiber reinforced concrete at different ages[J]. Materials Review，2016，30(24): 157-162.
[10] 范建设，丁国博，许金余，等. 早强聚苯乙烯混凝土动静力学性能试验研究[J]. 施工技术，2011，40(3): 98-102.
FAN Jianshe， DING Guobo，XU Jinyu， et al. Experimental investigation on the static and dynamic behavior of early-strengthened polystyrene concrete[J]. Construct Technol，2011，40(3):98-102.
[11] 中华人民共和国国家质量监督检验检疫总局，中国国家标准化管理委员会. 水泥胶砂强度( ISO) 测定方法:GB/T 17671 － 1999[S]. 1999，中国标准出版社: 北京.
General Administration of Quality Supervision， Inspection and Quarantine of the People's Republic of China，Standardization Administration of China. Cement mortar strength (ISO) determination method: GB/T 17671-1999[S]. 1999， China Standard Press: Beijing.
[12] Forrestal M J，Altman B S，Cargile J D，et al. An empirical equation for penetration depth of ogive-nose projectiles into concrete targets[J]. International Journal of Impact Engineering，1994，15(4): 395-405.
[13] 刘海鹏，高世桥，金磊，等. 弹侵彻混凝土靶面成坑的分阶段分析[J]. 兵工学报，2009，30(S2): 52-56.
LIU Haipeng，GAO Shiqiao，JIN Lei， et al. Phase Analysis on Crater-forming of Projectile Penetrating into Concrete Target[J]. Acta Armamentarii， 2009， 30(2):52-56.
[14] 高世桥，刘海鹏，金磊，等. 混凝土侵彻力学[M]. 北京: 中国科学技术出版社， 2013.
GAO Shiqiao，LIU Haipeng， JIN Lei， et al. Beijing: Concrete penetration mechanics， 2013.
[15] 邓云飞，崔亚男，慕忠成，等. 卵形头弹体对素混凝土高速侵彻的实验研究[J]. 应用力学学报，2019，36(5): 1144-1152.
DENG Yunfei， CUI Yanan， MU Zhongcheng， et al. An experimental investigation of ogive-nosed projectiles penetration into plain concrete at high velocities [J]. Chinese Journal of Applied Mechanics， 2019， 36(5):1144-1152.
[16] 陈小伟，李小笠，陈裕泽，等. 刚性弹侵彻动力学中的第三无量纲数[J]. 力学学报，2007，39(1): 77-84.
CHEN Xiaowei，LI Xiaoli，CHEN Yuze， et al. The Third Dimensionless Parameter in the Penetration Dynamics of Rigid Projiectiles[J]. Chinese Journal of Theoretical and Applied Mechanics， 2007，39(1):77-84.
[17] Chen X W，Li Q M. Deep penetration of a non-deformable projectile with different geometrical characteristics[J]. International Journal of Impact Engineering，2002，27(6): 619-637.
[18] 彭永，方秦，吴昊，等. 对弹体侵彻混凝土靶体阻力函数计算公式的探讨[J]. 工程力学，2015，32(4): 112-119.
PENG Yong，FANG Qing，WU Hao，et al. Discussion on the resistance forcing function of projectile penetrating into concrete targets[J]. Engineering Mechanics， 2015， 32(4):112-119.
[19] 纪冲，龙源，邵鲁中. 钢纤维混凝土遮弹层抗弹丸侵彻效应试验研究与分析[J]. 振动与冲击，2009，28(12): 75-79.
JI Chong，LONG Yuan，SHAO Luzhong. Experiment study and analysis on anti-penetration characteristics of steel fiber reinforced concrete[J]. Journal of Vibration and Shock，2009，28(12): 75-79.
[20] 章毅，胡枫，吴昊，等. 高强混凝土介质侵彻系数计算方法[J]. 防护工程，2021，43(2): 31-38.
ZHANG Yi，HU Feng，WU Hao，et al． Calculation method for medium penetration coefficient of high-performance concrete［J］． Protective Engineering，2021，43( 2) : 31-38．
[21] 纪冲，龙源，万文乾. 两种混凝土抗常规弹丸侵彻特性分析[J]. 兵器材料科学与工程，2006，29(1): 65-69.
JI Chong，LONG Yuan，WAN Wenqian. Analysis of the anti-penetration properties of two kinds of concrete against conventional projectile[J]. Ordnance Material Science and Engineering，2006，29(1): 65-69.