Abstract:An experimental technique for concrete penetration under triaxial confinement is developed in our lab. The hydraulic servo control system is employed to apply independent-controlled triaxial confinement on cubic specimens, and high-pressure gas is employed to drive bullets to penetrate the specimens along a hollow square bar. Responses of the cube specimen are recorded by strain gauges on six bars attached to the specimen, Taking M10 cement mortar as an example, the penetration behaviors of cement mortar under different stress states are investigated, and the corresponding data processing methods are established. The penetration differences of cubic specimens under unconfined, unidirectional confinement and bidirectional confinement are compared and analyzed, and the effect of stress state on penetration performance is discussed in details. It might be helpful for the development of new concept defense construction.
陈丽娜,单俊芳,周李姜,王鹏飞,徐松林. 应力状态对水泥砂浆侵彻性能的影响[J]. 振动与冲击, 2020, 39(15): 32-40.
CHEN Lina,SHAN Junfang,ZHOU Lijiang,WANG Pengfei,XU Songlin. Effects of stress state on penetration performance of cement mortar. JOURNAL OF VIBRATION AND SHOCK, 2020, 39(15): 32-40.
[1] LI Q M, Chen X W. Dimensionless formulae for penetration depth of concrete target impacted by a non-deformable projectile [J]. International Journal of Impact Engineering, 2003, 28(1): 93-116.
[2] Chen X W, Li Q M. Deep penetration of non-deformable projectile with different geometrical characteristics [J]. International Journal of Impact Engineering, 2002, 27(6): 619-637.
[3] Chen X W, Li J C. Analysis on the resistive force in penetration of a rigid projectile [J]. Defense Technology, 2014, 10(3): 285- 293.
[4] 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.
[5] Young C W. Penetration equations [R]. SAND 97-2426.
[6] Forrestal M J, Frew D J, Hanchak S J, et al. Penetration of grout and concrete targets with ogive-nose steel projectile [J]. International Journal of Impact Engineering, 1996, 18(5): 465-476.
[7] Qian L, Yang Y, Liu T. A semi-analytical model for truncated ogive-nose projectiles penetration into semi-analytical concrete targets [J]. International Journal of Impact Engineering, 2000,24(9): 947-955.
[8] 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.
[9] Gao S Q, Jin L, Liu H P. Dynamic response of a projectile perforating multi-plate concrete targets [J]. International Journal of Solids and Structures, 2004, 41(18-19):4927-4938.
[10] Frew D J, Hanchak S, Green M L, et al. Penetration of concrete targets with ogive-nose steel rods [J]. International Journal of Impact Engineering, 1998, 21(6): 489-497.
[11] Forrestal M J, Frew D J, Hickerson J P, et al. Penetration of concrete targets with deceleration-time measurements[J]. International Journal of Impact Engineering, 2003, 28(5): 479-497.
[12] 沈河涛.弹丸侵彻混凝土介质效应的研究[D].北京:北京理工大学,1996.
[13] BACKMAN M E, GOLDSMITH W. The mechanics of penetration of projectiles into targets [J]. International Journal of Engineering Science, 1978, 16(1): 1-99.
[14] 薛建锋,沈培辉,王晓鸣.弹体侵彻混凝土开坑阶段阻力的计算[J].高压物理学报.2016,30(6):499-504.
XUE Jian-feng, SHEN Pei-hui, WANG Xiao-ming. Resistance during cratering for projectile penetrating into concrete target [J]. Chinese Journal of High Pressure Physics, 2016, 30(6): 499-504.
[15] 徐松林,单俊芳,王鹏飞,等.三轴应力状态下混凝土的侵彻性能研究[J].爆炸与冲击,2019,39(7).
XU Song-lin, SHAN Jun-fang, WANG Peng-fei, et al. Penetration performance of concrete under triaxial stress[J]. Explosion and Shock Waves, 2019 ,39(7).
[16] 王礼立. 应力波基础[M]. 北京:国防工业出版社(第2版), 2010.
[17] 徐松林,王鹏飞,赵坚,等. 基于三维Hopkinson杆的混凝土动态性能研究[J]. 爆炸与冲击, 2017, 37(2): 180-185.
XU Song-lin, WANG Peng-fei, ZHAO Jian, et al. Dynamic behaviors of concrete under static triaxial loading using "3D-Hopkinson bar"[J]. Explosion and Shock Waves, 2017, 37(2): 180-185.
[18] 徐松林,王鹏飞,单俊芳,等. 真三轴静载作用下混凝土的动态力学性能研究[J]. 振动与冲击, 2018, 37(15): 59-67.
XU Song-lin, WANG Peng-fei, SHAN Jun-fang, et al. Dynamic behavior of concrete under static tri-axial loadings. Journal of Vibration and Shock, 2018, 37(15): 59-67.