Experimental study on Mode-I fracture toughness using Chevron Straight-notched Semi-circular Bend (CSNSCB) method
文献类型：期刊论文
| 作者 | Zhao, Zijiang1,3,4; Wang, Hongjian2,5; Cui, Zhendong1,3,4; Zhao, Fei5; Tang, Tiewu1,3,4; Han, Weige1,3,4; Wang, Xiaodong5 |
| 刊名 | THEORETICAL AND APPLIED FRACTURE MECHANICS
 |
| 出版日期 | 2021-12-01 |
| 卷号 | 116页码:13 |
| ISSN号 | 0167-8442 |
| 关键词 | Sandstone Mode-I fracture toughnessKIC Chevron straight-notched semi-circular bend (CSNSCB) Stress Intensity Factor (SIF) Dimensionless stress intensity factorY* |
| DOI | 10.1016/j.tafmec.2021.103093 |
| 英文摘要 | Rock fracture toughness is an important parameter for the engineering geological design. In this present study, chevron straight-notched semi-circular bend (CSNSCB) specimens with wide-flat liner chevron ligament (Type-A) and long-narrow liner chevron ligament (Type-B) were designed and prepared using wire cutting method. Mode-I fracture toughness KIC values and dimensionless stress intensity factor Y* were calculated. Moreover, these two types rock failure properties and KIC values variation features were both analyzed. The obtained results indicate that the width of precast artificial crack is small which can ensure the flatness and symmetry of cutting plane and then the tested Stress Intensity Factor (SIF) which has smaller deviation is more accurate and reliable. The Y* values for each type of configuration were calculated using Finite Element Method (FEM) and Slice Synthesis Method (SSM) and they firstly had a decreased trend and then an increased trend with the increasing of normalized crack length alpha, which represent the transition from stable crack propagation (alpha alpha m) to unstable crack propagation (alpha < alpha m). Compared to Type-A specimens, Type-B specimens had the calculated minimum dimensionless stress intensity factor Y*min with smaller deviation and average KIC values with smaller variation coefficients. Moreover, Type-A specimen has the average fractal dimension D value of 1.2209 which is 4.79% larger than that of 1.1651 for Type-B specimen, indicating its more complex crack generation and rougher fracture surfaces. That is to say, Type-B specimen has the advantages of small crack FPZ and crack propagation without deviation as well as smooth fracture surface. Since it can offset the harmful influence of rock anisotropy and good crack guided effect, its KIC value is much satisfactory and closer to the true fracture toughness of rocklike materials. |
| WOS关键词 | STRESS INTENSITY FACTORS ; ISRM-SUGGESTED METHOD ; PROCESS ZONE ; SPECIMENS |
| 资助项目 | National Natural Science Foundation of China[41807254] ; National Natural Science Foundation of China[51704120] ; National Natural Science Foundation of China[41972296] ; Young Talent Support Project of Henan Province[2021HYTP013] ; Key Research & Development and promotion projects of Henan Province[212102310374] ; China Postdoctoral Science Foundation[2020M682372] ; National Key Research and Development Project[2019YFC1509704] ; National Key Research and Development Project[2019YFC1509705] ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP)[2019QZKK0904] ; Key scientific research projects of colleges in Henan province[19A170010] ; Key scientific research projects of colleges in Henan province[20A410001] |
| WOS研究方向 | Engineering ; Mechanics |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000717043200001 |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Young Talent Support Project of Henan Province ; Young Talent Support Project of Henan Province ; Young Talent Support Project of Henan Province ; Young Talent Support Project of Henan Province ; Key Research & Development and promotion projects of Henan Province ; Key Research & Development and promotion projects of Henan Province ; Key Research & Development and promotion projects of Henan Province ; Key Research & Development and promotion projects of Henan Province ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Key Research and Development Project ; National Key Research and Development Project ; National Key Research and Development Project ; National Key Research and Development Project ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Key scientific research projects of colleges in Henan province ; Key scientific research projects of colleges in Henan province ; Key scientific research projects of colleges in Henan province ; Key scientific research projects of colleges in Henan province ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Young Talent Support Project of Henan Province ; Young Talent Support Project of Henan Province ; Young Talent Support Project of Henan Province ; Young Talent Support Project of Henan Province ; Key Research & Development and promotion projects of Henan Province ; Key Research & Development and promotion projects of Henan Province ; Key Research & Development and promotion projects of Henan Province ; Key Research & Development and promotion projects of Henan Province ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Key Research and Development Project ; National Key Research and Development Project ; National Key Research and Development Project ; National Key Research and Development Project ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Key scientific research projects of colleges in Henan province ; Key scientific research projects of colleges in Henan province ; Key scientific research projects of colleges in Henan province ; Key scientific research projects of colleges in Henan province ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Young Talent Support Project of Henan Province ; Young Talent Support Project of Henan Province ; Young Talent Support Project of Henan Province ; Young Talent Support Project of Henan Province ; Key Research & Development and promotion projects of Henan Province ; Key Research & Development and promotion projects of Henan Province ; Key Research & Development and promotion projects of Henan Province ; Key Research & Development and promotion projects of Henan Province ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Key Research and Development Project ; National Key Research and Development Project ; National Key Research and Development Project ; National Key Research and Development Project ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Key scientific research projects of colleges in Henan province ; Key scientific research projects of colleges in Henan province ; Key scientific research projects of colleges in Henan province ; Key scientific research projects of colleges in Henan province ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Young Talent Support Project of Henan Province ; Young Talent Support Project of Henan Province ; Young Talent Support Project of Henan Province ; Young Talent Support Project of Henan Province ; Key Research & Development and promotion projects of Henan Province ; Key Research & Development and promotion projects of Henan Province ; Key Research & Development and promotion projects of Henan Province ; Key Research & Development and promotion projects of Henan Province ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Key Research and Development Project ; National Key Research and Development Project ; National Key Research and Development Project ; National Key Research and Development Project ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Key scientific research projects of colleges in Henan province ; Key scientific research projects of colleges in Henan province ; Key scientific research projects of colleges in Henan province ; Key scientific research projects of colleges in Henan province |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/103819]  |
| 专题 | 地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室 |
| 通讯作者 | Wang, Hongjian |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 2.Zhongyuan Oilfield Branch Sinopec, Puyang 457000, Henan, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China 4.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China 5.North China Univ Water Resources & Elect Power, Zhengzhou 450045, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Zijiang,Wang, Hongjian,Cui, Zhendong,et al. Experimental study on Mode-I fracture toughness using Chevron Straight-notched Semi-circular Bend (CSNSCB) method[J]. THEORETICAL AND APPLIED FRACTURE MECHANICS,2021,116:13. |
| APA | Zhao, Zijiang.,Wang, Hongjian.,Cui, Zhendong.,Zhao, Fei.,Tang, Tiewu.,...&Wang, Xiaodong.(2021).Experimental study on Mode-I fracture toughness using Chevron Straight-notched Semi-circular Bend (CSNSCB) method.THEORETICAL AND APPLIED FRACTURE MECHANICS,116,13. |
| MLA | Zhao, Zijiang,et al."Experimental study on Mode-I fracture toughness using Chevron Straight-notched Semi-circular Bend (CSNSCB) method".THEORETICAL AND APPLIED FRACTURE MECHANICS 116(2021):13. |
入库方式： OAI收割
来源：地质与地球物理研究所
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