应力状态对水泥砂浆侵彻性能的影响

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振动与冲击 ›› 2020, Vol. 39 ›› Issue (15) : 32-40.

论文

应力状态对水泥砂浆侵彻性能的影响

陈丽娜，单俊芳，周李姜，王鹏飞，徐松林

作者信息 +

Effects of stress state on penetration performance of cement mortar

CHEN Lina，SHAN Junfang，ZHOU Lijiang，WANG Pengfei，XU Songlin

Author information +

文章历史 +

摘要

研制了真三轴应力状态作用下混凝土侵彻实验装置。该装置采用液压伺服控制系统对立方体试件施加三向独立的静载、采用高压气体驱动子弹侵彻试件；同时，试件六个面的动态信号可由六根杆上的应变片记录。以M10水泥砂浆试件为例，研究水泥砂浆在不同的应力状态下的侵彻性能，建立了相应的数据处理方法，对比分析了立方体试件无侧限、单向侧限、双向侧限下侵彻差异，揭示出应力状态对侵彻性能的影响。该研究对防护工程等领域有很好的参考意义。

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.

导出引用

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[J]. Journal of Vibration and Shock, 2020, 39(15): 32-40

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