Vol. 16, No. 5, 2021

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Numerical simulation of frozen soil under uniaxial and coupled dynamic-static impact loads

Zhanfan Chunyu, Zhiwu Zhu, Weiran Tang, Fulai Zhang and Tiantian Fu

Vol. 16 (2021), No. 5, 677–696
DOI: 10.2140/jomms.2021.16.677

The split Hopkinson pressure bar experiment, wherein frozen soil is subjected to uniaxial and coupled dynamic-static impact loads, was simulated numerically. The results revealed that frozen soil exhibited strain rate and temperature effects under uniaxial impact load only. When the frozen soil specimen under an initial quasistatic load (axial pressure or confining pressure) was subjected to an axial impact load, the stress-strain curve of the specimen was obtained. The initial axial and confining pressures, which had identical values and were applied to the specimen simultaneously, are referred to as the combined load in this paper. When the specimen under combined load was subjected to an axial impact load, its peak stress values exhibited varying trends for different value ranges of the combined load. Finally, the destruction of the frozen soil specimen varied significantly with the increase in axial pressure, confining pressure, and combined load.

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numerical simulation, impact analysis, axial pressure, confining pressure, combined load
Received: 9 April 2021
Revised: 30 July 2021
Accepted: 5 August 2021
Published: 31 August 2022
Zhanfan Chunyu
Southwest Jiaotong University
Chengdu, Sichuan
Zhiwu Zhu
Southwest Jiaotong University
Chengdu, Sichuan
Weiran Tang
Southwest Jiaotong University
Chengdu, Sichuan
Fulai Zhang
Southwest Jiaotong University
Chengdu, Sichuan
Tiantian Fu
Southwest Jiaotong University
Chengdu, Sichuan