MICRO-CRACK

作品数：22被引量：51H指数：4
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相关领域：金属学及工艺更多>>
相关机构：北京理工大学更多>>
相关期刊：《Optics and Photonics Journal》《Chinese Journal of Mechanical Engineering》《Petroleum Science》《Science China Mathematics》更多>>
相关基金：国家自然科学基金国家重点基础研究发展计划更多>>
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Rock physical characteristics of deep dolomite under complex geological conditions:A case study of 4th Member of Sinian Dengying Formation in the Sichuan Basin,China
《Petroleum Science》2024年第4期2370-2382,共13页Chuang Li Shu-Xin Pan Hong-Bin Wang Ji-Xin Deng Jian-Guo Zhao Zhi Li Yu Zhang 
funded by the CNPC (China National Petroleum Corporation)Scientific Research and Technology Development Project (Grant No.2023ZZ0205,2021DJ0506);sponsored by the National Natural Science Foundation of China (41774136,41374135)。
The deep-ultra deep carbonate reservoir in China,commonly subjected to modification of multi-stage diagenesis,has extremely high heterogeneity.Conventional rock physics analysis cannot accurately identify the elastic ...
关键词：Deep-ultra deep carbonate reservoirs Rock physics properties DOLOMITE Seismic elastic properties MICRO-CRACK Pore structure types 
An extended micromechanical-based plastic damage model for understanding water effects on quasi-brittle rocks被引量：1
《International Journal of Mining Science and Technology》2024年第3期289-304,共16页Qiaojuan Yu Shigui Du Qizhi Zhu Zhanyou Luo Sili Liu Lunyang Zhao 
financially supported by the National Natural Science Foundation of China(Nos.42001053 and 42277147);the General Scientific Research Fund of Zhejiang Provincial Education Department(No.Y202352363);the University Natural Science Foundation of Jiangsu Province(No.23KJD130001)。
Water effects on the mechanical properties of rocks have been extensively investigated through experiments and numerical models.However,few studies have established a comprehensive link between the microscopic mechani...
关键词：Water MICRO-CRACK DAMAGE MICRO-MECHANICS Constitutive model Cohesive force 
Fracture behavior of granite specimen containing a single fissure under uniaxial compression by grain-based model 3D被引量：1
《Acta Mechanica Sinica》2022年第9期77-90,共14页Wen-Ling Tian Sheng-Qi Yang Yan-Hua Huang Zhi-Jin Dong 
This work was supported by the Project of National Natural Science Foundation of China(Grant No.42107159);Fundamental Research Funds for the Central Universities(Grant No.2021ZDPYJQ002).
The understanding of the mechanical behavior of granite containing fissures is of great significance for geothermal energy exploitation and high-level nuclear waste disposal repository.To consider the grain interlocki...
关键词：GBM3D Granite specimen Pre-existing fissure Fracture process MICRO-CRACK 
Modeling and Experimental Analysis of Roughness Effect on Ultrasonic Nondestructive Evaluation of Micro-crack被引量：2
《Chinese Journal of Mechanical Engineering》2021年第6期126-137,共12页Zhe Wang Zhichao Fan Xuedong Chen Yihua Kang Jingwei Cheng Wei Chen 
Supported by the Key Research and Development Plan of Anhui Province(Grant No.202004a05020003);Anhui Provincial Natural Science Foundation(Grant Nos.2008085QE233,2008085J24);the Science and Technology Major Project of Anhui Province(Grant No.201903a05020010);the Doctoral Science and Technology Foundation of Hefei General Machinery Research Institute(Grant No.2019010383).
A high-precision evaluation of ultrasonic detection sensitivity for a micro-crack can be restricted by a corroded rough surface when the surface microtopography is of the same order of magnitude as the crack depth.In ...
关键词：Surface roughness MICRO-CRACK Ultrasonic testing model Detection accuracy Evaluation method 
Stress-strain-acoustic responses in failure process of coal rock with different height to diameter ratios under uniaxial compression被引量：11
《Journal of Central South University》2021年第6期1724-1736,共13页GUO Yu-xia ZHAO Yong-hui WANG Sheng-wei FENG Guo-rui ZHANG Yu-jiang RAN Hong-yu 
Projects(51974192,52004172)supported by the National Natural Science Foundation of China;Project(51925402)supported by the Distinguished Youth Funds of National Natural Science Foundation of China;Project(U1710258)supported by the Joint Funds of National Natural Science Foundation of China and Shanxi Province,China。
Residual coal pillars play an important role in mining the adjacent coal seam safely,managing the gobs and maintaining the stability of abandoned coal mines.The height to diameter ratio(H/D)affects the stability of re...
关键词：residual coal pillar height to diameter ratio uniaxial compression acoustic emission micro-crack evolution 
Investigation of sensitivity of the ultra-high frequency partial-discharge detection technology for micro-crack in epoxy insulator in GIS被引量：3
《High Voltage》2020年第6期697-703,共7页Jiangrong Cheng Yang Xu Dengwei Ding Weidong Liu 
the National Basic Research Program of China(Program,2017YFB0903800);the appendant project(SGTYHT/16-JS-198).
The ultra-high frequency(UHF)method has been widely used in a gas-insulated system(GIS)for partial-discharge detection,and many achievements have been realised.In addition,many studies based on artificial defects have...
关键词：INSULATOR CRACK HIGH 
Micro-crack detection of nonlinear Lamb wave propagation in three-dimensional plates with mixed-frequency excitation被引量：3
《Chinese Physics B》2020年第1期336-345,共10页Wei-Guang Zhu Yi-Feng Li Li-Qiang Guan Xi-Li Wan Hui-Yang Yu Xiao-Zhou Liu 
Project supported by the National Natural Science Foundation of China(Grant Nos.61571222,61602235,and 11474160);the Six Talent Peaks Project of Jiangsu Province,China
We propose a nonlinear ultrasonic technique by using the mixed-frequency signals excited Lamb waves to conduct micro-crack detection in thin plate structures.Simulation models of three-dimensional(3D)aluminum plates a...
关键词：nonlinear Lamb wave mixed-frequency MICRO-CRACKS amplitude ratio 
OMHT method for weak signal processing of GPR and its application in identification of concrete micro-crack被引量：4
《Journal of Central South University》2019年第11期3057-3065,共9页LING Tong-hua ZHANG Liang HUANG Fu GU Dan-ping YU Bin ZHANG Sheng 
Projects(51678071,51608183)supported by the National Natural Science Foundation of China;Projects(CX2018B530,CX2018B531)supported by the Postgraduate Research and Innovation-funded Project of Hunan Province,China;Projects(16BCX13,16BCX09)supported by Changsha University of Science and Technology,China
In the light of the problem of weak reflection signals shielded by strong reflections from the concrete surface,the detection and the recognition of hidden micro-cracks in the shield tunnel lining were studied using t...
关键词：orthogonal matching pursuit Hilbert transform shield tunnel lining structure hidden micro-crack 
ffect of a Micro-crack on the Edge Macro-crack Propagation Rate and Path Under Mixed Loads被引量：2
《Acta Mechanica Solida Sinica》2019年第4期517-532,共16页Xiaotao Li Xiaoyu Jiang 
supported by the National Natural Science Foundation of China (11472230);Doctoral Innovation Fund Program of Southwest Jiaotong University (D-CX201836).
The solution of a half-plane containing a micro-crack and an edge macro-crack under mixed loads is presented based on the distributed dislocation technique. The complete stress field and stress intensity factors are o...
关键词：MICRO-CRACK Macro-crack propagation Distributed DISLOCATION technique COMPLETE stress field 
Calculation of the Stress Intensity Factor in an Inclusion-Containing Matrix
《Modeling and Numerical Simulation of Material Science》2019年第2期17-28,共12页Claude Lincourt Jacques Lanteigne Madhavarao Krishnadev Carl Blais 
The intent of this paper is to propose an engineering approach to estimate the stress intensity factor of a micro crack emerging from an inclusion in relation with the morphology of the inclusion and its relative stif...
关键词：INCLUSIONS FINITE Element Analysis MICRO-CRACK 
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