globalchange  > 气候变化与战略
DOI: 10.1016/j.tecto.2021.228865
论文题名:
Effects of stress path on brittle failure of sandstone: Difference in crack growth between tri-axial compression and extension conditions
作者: Panaghi K.; Takemura T.; Asahina D.; Takahashi M.
刊名: Tectonophysics
ISSN: 00401951
出版年: 2021
卷: 810
语种: 英语
中文关键词: Compression and extension ; Intermediate stress ; Stress distribution ; Stress path ; Tri-axial test
英文关键词: Axial compression ; Compression testing ; Cracks ; Failure (mechanical) ; Materials testing apparatus ; Sandstone ; Unloading ; Confining pressures ; Geological materials ; Influential factors ; Laboratory experiments ; Loading and unloading ; Material behavior ; Mechanical complexity ; Pre-existing crack ; Compressive strength ; brittle failure ; complexity ; compression ; deformation mechanism ; rock mechanics ; sandstone ; stress analysis ; stress field ; testing method ; triaxial test
英文摘要: The tri-axial testing of rocks under compression is a widely popular measure for the assessment of strength of geological materials in the laboratory. In this regard, mechanical complexities of true tri-axial testing machines impel researchers to opt for simpler conventional tri-axial testing machines. To account for influential factors that affect quality of experimental data, observations derived from laboratory experiments that enable overcoming some drawbacks are presented herein. In the present study, a series of tri-axial tests on Kimachi sandstone under Conventional Tri-axial Compression (CTC), Conventional Tri-axial Extension (CTE), Reduced Tri-axial Compression (RTC), and Reduced Tri-axial Extension (RTE) conditions were carried out. The results suggested higher compressive strengths for the rock under tri-axial extension tests than the compression tests. This observation proves that the effect of intermediate confining pressure on material behavior is important and if feasible, should not be sacrificed for more economical alternatives. Generally, the loading and unloading experiments for a specific test type rendered the same results and the conventional and reduced paths in both the compression and extension tests did not affect the failure strength of the specimens. The effect of pre-existing cracks orientation with respect to the principal loading directions on crack growth was focused upon and related conclusions were subsequently drawn. © 2021 Elsevier B.V.
Citation statistics:
被引频次[WOS]:6   [查看WOS记录]     [查看WOS中相关记录]
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/170879
Appears in Collections:气候变化与战略

Files in This Item:

There are no files associated with this item.


作者单位: Department of Civil and Architectural Engineering, School of Science and Engineering, University of Kurdistan Hewlêr, 30 Meter Avenue, Erbil, Kurdistan Region, Iraq; Geomechanics Lab., Department of Earth and Environmental Sciences, College of Humanities and Sciences, Nihon University, 3-25-40 Sakurajyosui, Setagaya-ku, Tokyo 156-8850, Japan; Geological Survey of Japan, AIST, Ibaraki, 305-8567, Japan

Recommended Citation:
Panaghi K.,Takemura T.,Asahina D.,et al. Effects of stress path on brittle failure of sandstone: Difference in crack growth between tri-axial compression and extension conditions[J]. Tectonophysics,2021-01-01,810
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Panaghi K.]'s Articles
[Takemura T.]'s Articles
[Asahina D.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Panaghi K.]'s Articles
[Takemura T.]'s Articles
[Asahina D.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Panaghi K.]‘s Articles
[Takemura T.]‘s Articles
[Asahina D.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.