An Experimental Study of the Rate Dependence of Tensile Strength Softening of Longyou Sandstone

doi:10.1007/s00603-010-0083-8

CORC > 武汉岩土力学研究所 > 中科院武汉岩土力学所 > 岩土力学所知识全产出 > 期刊论文

	An Experimental Study of the Rate Dependence of Tensile Strength Softening of Longyou Sandstone
	Feng, Xiating2 ; Yan, Fei 2; Xia, Kaiwen 1,3; Huang, Sheng 1,2,3
刊名	ROCK MECHANICS AND ROCK ENGINEERING
	2010
卷号	43 期号:6 页码:677-683
关键词	Tensile strength Longyou sandstone Water softening factor SHPB
ISSN号	0723-2632
DOI	10.1007/s00603-010-0083-8
英文摘要	It is well-known that the strengths of sandstones measured under fully saturated conditions are smaller than those measured under nominally dry conditions. This strength softening phenomenon has profound implications to rock engineering. In this work we investigate the tensile strength softening of Longyou sandstone from China. Defining the strength softening factor as the ratio of the strength under nominally dry conditions over that under saturated conditions, the static compressive strength softening factor of Longyou sandstone is close to 2 and the static tensile strength softening factor is about 7.9. To further address the applications, where the load may be dynamic, we examine the rate dependence of the tensile strength softening of this sandstone. The dynamic tensile strength is measured using the split Hopkinson pressure bar system in combination with the Brazilian disc sample geometry. The results show that the tensile strength softening factor decreases with the loading rate. Because the saturated sample shows stronger loading rate sensitivity than the dry sample, the softening factor decreases with the loading rate.
WOS研究方向	Engineering ; Geology
语种	英语
出版者	SPRINGER WIEN
WOS记录号	WOS:000283121100004
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/3248]
专题	岩土力学所知识全产出_期刊论文岩土力学所知识全产出
作者单位	1.Univ Toronto, Dept Civil Engn; 2.Chinese Acad Sci, Inst Rock & Soil Mech 3.Univ Toronto, Lassonde Inst;
推荐引用方式 GB/T 7714	Feng, Xiating,Yan, Fei,Xia, Kaiwen,et al. An Experimental Study of the Rate Dependence of Tensile Strength Softening of Longyou Sandstone[J]. ROCK MECHANICS AND ROCK ENGINEERING,2010,43(6):677-683.
APA	Feng, Xiating,Yan, Fei,Xia, Kaiwen,&Huang, Sheng.(2010).An Experimental Study of the Rate Dependence of Tensile Strength Softening of Longyou Sandstone.ROCK MECHANICS AND ROCK ENGINEERING,43(6),677-683.
MLA	Feng, Xiating,et al."An Experimental Study of the Rate Dependence of Tensile Strength Softening of Longyou Sandstone".ROCK MECHANICS AND ROCK ENGINEERING 43.6(2010):677-683.