Effects of test procedures and lithology on estimating the mode I fracture toughness of rocks using empirical relations

doi:10.1002/mawe.201700146

	Effects of test procedures and lithology on estimating the mode I fracture toughness of rocks using empirical relations
	Bao, H.1; Wu, F. Q.2; Niu, J. R.3
刊名	MATERIALWISSENSCHAFT UND WERKSTOFFTECHNIK
	2018-08-01
卷号	49 期号:8 页码:951-962
关键词	Mode I fracture toughness tensile strength empirical relation estimation method influencing factors
ISSN号	0933-5137
DOI	10.1002/mawe.201700146
英文摘要	Empirical estimation is a common method for getting mode I fracture toughness K-IC of rock. By collecting data from tests in this study and literature, 204 sets of K-IC and tensile strength sigma(t) test data are obtained for new empirical K-IC-sigma(t) relations regression. The empirical relations make the estimation of K-IC values from sigma(t) conveniently, but test procedures and lithology will influence its reasonability and reliability. Results indicate that the empirical K-IC-sigma(t) relations obtained from the four different suggested K-IC test methods are all in good but obviously different linear relationship. The analyses show that cracked chevron notch Brazilian disc specimen (CCNBD) test-based empirical relation is more accurate for estimating K-IC than the other three test-based empirical relations. As to different lithology, isotropic rocks such as sandstone and carbonatite may be more appropriate for the application of empirical estimation method. However, for coarse grained or anisotropic rocks such as granite and marble, estimation method should be applied carefully because of possibly weak K-IC-sigma(t) relations.
资助项目	National Natural Science Foundation of China[41790443] ; Collaborative Innovation Center for Prevention and Control of Mountain Geological Hazards of Zhejiang Province[PCMGH-2016-Z-03] ; Fundamental Research Funds for the Central Universities[310821171007] ; Fundamental Research Funds for the Central Universities[310821173701]
WOS关键词	SEMICIRCULAR BEND SPECIMEN ; MECHANICAL-PROPERTIES ; TENSILE-STRENGTH ; SUGGESTED METHOD ; BRITTLE ROCKS ; PARAMETERS ; TEMPERATURE ; RESISTANCE ; SANDSTONE ; FAILURE
WOS研究方向	Materials Science
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000441568800001
资助机构	National Natural Science Foundation of China ; National Natural Science Foundation of China ; Collaborative Innovation Center for Prevention and Control of Mountain Geological Hazards of Zhejiang Province ; Collaborative Innovation Center for Prevention and Control of Mountain Geological Hazards of Zhejiang Province ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Collaborative Innovation Center for Prevention and Control of Mountain Geological Hazards of Zhejiang Province ; Collaborative Innovation Center for Prevention and Control of Mountain Geological Hazards of Zhejiang Province ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Collaborative Innovation Center for Prevention and Control of Mountain Geological Hazards of Zhejiang Province ; Collaborative Innovation Center for Prevention and Control of Mountain Geological Hazards of Zhejiang Province ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Collaborative Innovation Center for Prevention and Control of Mountain Geological Hazards of Zhejiang Province ; Collaborative Innovation Center for Prevention and Control of Mountain Geological Hazards of Zhejiang Province ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/88114]
专题	中国科学院地质与地球物理研究所
通讯作者	Wu, F. Q.
作者单位	1.Changan Univ, Sch Highway, Xian 710064, Shaanxi, Peoples R China 2.Shaoxing Univ, Coll Civil Engn, Shaoxing 312000, Zhejiang, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Bao, H.,Wu, F. Q.,Niu, J. R.. Effects of test procedures and lithology on estimating the mode I fracture toughness of rocks using empirical relations[J]. MATERIALWISSENSCHAFT UND WERKSTOFFTECHNIK,2018,49(8):951-962.
APA	Bao, H.,Wu, F. Q.,&Niu, J. R..(2018).Effects of test procedures and lithology on estimating the mode I fracture toughness of rocks using empirical relations.MATERIALWISSENSCHAFT UND WERKSTOFFTECHNIK,49(8),951-962.
MLA	Bao, H.,et al."Effects of test procedures and lithology on estimating the mode I fracture toughness of rocks using empirical relations".MATERIALWISSENSCHAFT UND WERKSTOFFTECHNIK 49.8(2018):951-962.