应力状态对水泥砂浆侵彻性能的影响

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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.

Key words： Penetration stress state Cement mortar loading path

Received: 01 April 2019 Published: 28 July 2020

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	Articles by authors
	CHEN Lina
	SHAN Junfang
	ZHOU Lijiang
	WANG Pengfei
	XU Songlin

Cite this article:

CHEN Lina,SHAN Junfang,ZHOU Lijiang, et al. 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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http://jvs.sjtu.edu.cn/EN/ OR http://jvs.sjtu.edu.cn/EN/Y2020/V39/I15/32

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