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DOI	10.1007/s10338-021-00273-5
	Dynamic Deformation of Frozen Soil at a High Strain Rate: Experiments and Damage-Coupled Constitutive Model
	Zhu, Z. W.; Tang, W. R.; Kang, G. Z.
通讯作者	Kang, GZ (通讯作者)，Southwest Jiaotong Univ, Sch Mech & Engn, Applzed Mech & Struct Safety Key Lab Sichuan Prov, Chengdu 610036, Peoples R China.
发表日期	2021
ISSN	0894-9166
EISSN	1860-2134
起始页码	895
结束页码	910
卷号	34 期号:6
英文摘要	The dynamic compressive deformation of frozen soil was investigated by conducting the split-Hopkinson pressure bar (SHPB) experiments at three temperatures and different high strain rates, and the dynamic stress-strain responses and failure modes of the frozen soil were analyzed. The experimental results demonstrate that the frozen soil exhibits evident dependence on the strain rate and temperature under the dynamic loading condition. The dynamic compressive stress-strain curve of the frozen soil was divided into three parts: the linear, nonlinear rising, and strain softening parts. The nonlinear rising and strain softening parts were both caused by the damage attributed to the debonding between the ice particles and soil matrix, from which a rate-dependent damage evolution equation was obtained. Moreover, a damage-coupled dynamic viscoelastic constitutive model of frozen soil at high strain rate was derived. A comparison between the theoretically predicted results and the experimental ones showed that the developed dynamic viscoelastic model could well describe the dynamic mechanical behavior of frozen soil at high strain rate.
关键词	STRENGTH BEHAVIOR TEMPERATURE CLAY ICE
英文关键词	Frozen soil; Dynamic compression; High strain rate; Damage; Constitutive model
语种	英语
WOS研究方向	Materials Science ; Mechanics
WOS类目	Materials Science, Multidisciplinary ; Mechanics
WOS记录号	WOS:000693859200002
来源期刊	ACTA MECHANICA SOLIDA SINICA
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254552
作者单位	[Zhu, Z. W.; Tang, W. R.; Kang, G. Z.] Southwest Jiaotong Univ, Sch Mech & Engn, Applzed Mech & Struct Safety Key Lab Sichuan Prov, Chengdu 610036, Peoples R China; [Zhu, Z. W.] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Zhu, Z. W.,Tang, W. R.,Kang, G. Z.. Dynamic Deformation of Frozen Soil at a High Strain Rate: Experiments and Damage-Coupled Constitutive Model[J]. 中国科学院西北生态环境资源研究院,2021,34(6).
APA	Zhu, Z. W.,Tang, W. R.,&Kang, G. Z..(2021).Dynamic Deformation of Frozen Soil at a High Strain Rate: Experiments and Damage-Coupled Constitutive Model.ACTA MECHANICA SOLIDA SINICA,34(6).
MLA	Zhu, Z. W.,et al."Dynamic Deformation of Frozen Soil at a High Strain Rate: Experiments and Damage-Coupled Constitutive Model".ACTA MECHANICA SOLIDA SINICA 34.6(2021).