干旱区生态环境知识资源中心(Arid): Effect of hydrothermal coupling on energy evolution, damage, and microscopic characteristics of sandstone

Arid

DOI	10.1515/htmp-2020-0070
	Effect of hydrothermal coupling on energy evolution, damage, and microscopic characteristics of sandstone
	Zhang Rongrong; Ma Qinyong; Ping Qi; Ma Dongdong
通讯作者	Ma, DD
来源期刊	HIGH TEMPERATURE MATERIALS AND PROCESSES
ISSN	0334-6455
EISSN	2191-0324
出版年	2020
卷号	39 页码:377-389
英文摘要	Heat-cool (H-C) cycle is a serious natural weathering mechanism for rock engineering in temperate desert climate; meanwhile, engineering rocks usually involve responses to impact loads arising from blasting operation, mechanized construction, and seismic oscillation. Considering the universality and destructiveness of rock failure caused by H-C cycle weathering coupled with dynamic loading, split Hopkinson pressure bar tests were conducted for sandstone with various H-C cycles. Additionally, hydrothermal coupled damage (D) was defined based on variation of total import strain energy. Energy evolution, damage, and microscopic characteristics of sandstone after diffierent H-C cycles were studied. Finally, the microcosmic structure changes of sandstone after various H-C cycles are compared by means of scanning electron microscopy (SEM) and energy dispersive spectrometer (EDS) technology. Results show that decreasing rate of total import strain energy in high temperature group is significantly larger compared with that in low temperature group and moderate temperature groups. Repeated H-C cycles produce the thermal stress at the mineral boundary constantly and fracture along the boundary of the mineral particle according to the SEM and EDS results.
英文关键词	split Hopkinson pressure bar hydrothermal coupling energy evolution heat-cool cycles damage
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000565167200001
WOS关键词	FREEZE-THAW ; MECHANICAL-PROPERTIES ; THERMAL-DAMAGE ; ROCK ; DISSIPATION ; STRENGTH ; GRANITE ; MODEL
WOS类目	Materials Science, Multidisciplinary
WOS研究方向	Materials Science
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/325976
作者单位	[Zhang Rongrong; Ma Qinyong; Ping Qi; Ma Dongdong] Anhui Univ Sci & Technol, State Key Lab Min Response & Disaster Prevent & C, Huainan 232001, Anhui, Peoples R China; [Zhang Rongrong; Ma Qinyong; Ping Qi; Ma Dongdong] Anhui Univ Sci & Technol, Sch Civil Engn & Architecture, Huainan 232001, Anhui, Peoples R China; [Zhang Rongrong; Ma Qinyong; Ping Qi; Ma Dongdong] Anhui Univ Sci & Technol, Engn Res Ctr Underground Mine Construct, Minist Educ, Huainan 232001, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Zhang Rongrong,Ma Qinyong,Ping Qi,et al. Effect of hydrothermal coupling on energy evolution, damage, and microscopic characteristics of sandstone[J],2020,39:377-389.
APA	Zhang Rongrong,Ma Qinyong,Ping Qi,&Ma Dongdong.(2020).Effect of hydrothermal coupling on energy evolution, damage, and microscopic characteristics of sandstone.HIGH TEMPERATURE MATERIALS AND PROCESSES,39,377-389.
MLA	Zhang Rongrong,et al."Effect of hydrothermal coupling on energy evolution, damage, and microscopic characteristics of sandstone".HIGH TEMPERATURE MATERIALS AND PROCESSES 39(2020):377-389.