云南高校图书馆联盟文献共享服务平台- CRACK

CRACK: 作品数：991被引量：1789H指数：15; 导出分析报告; 相关领域：理学更多>>; 相关作者：周丽君王媛范天佑潘登丁洪志更多>>; 相关机构：北京理工大学河海大学南京航空航天大学哈尔滨工业大学更多>>; 相关期刊：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中国博士后科学基金国家教育部博士点基金更多>>

Pavement Cracks Coupled With Shadows:A New Shadow-Crack Dataset and A Shadow-Removal-Oriented Crack Detection Approach被引量：3: 《IEEE/CAA Journal of Automatica Sinica》2023年第7期1593-1607,共15页Lili Fan Shen Li Ying Li Bai Li Dongpu Cao Fei-Yue Wang; supported in part by the 14th Five-Year Project of Ministry of Science and Technology of China(2021YFD2000304);Fundamental Research Funds for the Central Universities(531118010509);Natural Science Foundation of Hunan Province,China(2021JJ40114)。; Automatic pavement crack detection is a critical task for maintaining the pavement stability and driving safety.The task is challenging because the shadows on the pavement may have similar intensity with the crack,whi...; 关键词：Automatic pavement crack detection data augmentation compensation deep learning residual feature augmentation shadow removal shadow-crack dataset

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

Fatigue crack initiation of magnesium alloys under elastic stress amplitudes:A review被引量：17: 《Frontiers of Mechanical Engineering》2019年第1期113-127,共15页B.J.WANG D.K.XU S.D.WANG E.H.HAN; the National Natural Science Foundation of China(Grant Nos.51701129,51271183 and 51301172);Initiation Foundation of Shenyang Ligong University for Doctoral Research;the National Basic Research Program of China(973 Program)(Grant No.2013CB632205);the National Key Research and Development Program of China(Grant No.2016YFB0301105);Innovation Fund of Institute of Metal Research,Chinese Academy of Sciences.; The most advantageous property of magnesium(Mg)alloys is their density,which is lower compared with traditional metallic materials.Mg alloys,considered the lightest metallic structural material among others,have great...; 关键词：Mg alloys FATIGUE behavior microstructure CRACK INITIATION DEFORMATION mechanism

Crack growth analysis for rock-like materials with ordered multiple pre-cracks under biaxial compression被引量：4: 《Journal of Central South University》2017年第4期866-874,共9页WANG Min CAO Ping WAN Wen ZHAO Yan-lin LIU Jie LIU Jing-shuo; Project(E21527)supported by the Open Research Fund Program of Hunan Provincial Key Laboratory of Shale Gas Resource Utilization,China;Project(2015zzts077)supported by the Fundamental Research Funds for the Central Universities,China;Projects(51174088,51174228)supported by the National Natural Science Foundation of China;Project(2013CB035401)supported by the National Basic Research Program of China; The pre-burying iron sheets approach was used to prepare rock-like materials with ordered multiple pre-cracks. 60 specimens in total were prepared in these experiments. Through biaxial compression experiments, the inf...; 关键词：CRACK growth WING CRACK secondary SHEAR CRACK vertical pre-cracks FRACTAL DIMENSION

Equivalent elastic compliance tensor for rock mass with multiple persistent joint sets:Exact derivation via modified crack tensor被引量：2: 《Journal of Central South University》2016年第6期1486-1507,共22页崔洁江权冯夏庭李邵军高红李帅军; Projects(41172284,51379202) supported by the National Natural Science Foundation of China;Project(2013CB036405) supported by the National Basic Research Program of China;Project(2013BAB02B01) supported by the National Key Technologies R&D Program of China; Discontinuities constitute an integral part of rock mass and inherently affect its anisotropic deformation behavior.This work focuses on the equivalent elastic deformation of rock mass with multiple persistent joint s...; 关键词：equivalent elastic compliance tensor crack tensor multiple joint sets rock mass

Nonlinear dynamic modeling of a helicopter planetary gear train for carrier plate crack fault diagnosis被引量：16: 《Chinese Journal of Aeronautics》2016年第3期675-687,共13页Fan Lei Wang Shaoping Wang Xingjian Han Feng Lyu Huawei; co-supported by the National Basic Research Program of China(2014CB046402);the Natural Science Foundation of China(Grant No.51175014);‘‘111" Project; Planetary gear train plays a significant role in a helicopter operation and its health is of great importance for the flight safety of the helicopter. This paper investigates the effects of a planet carrier plate crac...; 关键词：Angular shift Carrier plate crack Crack fault diagnosis Helicopter planetary geartrain Nonlinear dynamicsmodeling

Super-harmonic responses analysis for a cracked rotor system considering inertial excitation被引量：11: 《Science China(Technological Sciences)》2015年第11期1924-1934,共11页HOU Lei CHEN YuShu; supported by the National Basic Research Program of China("973"Project)(Grant No.2015CB057400);the National Natural Science Foundation of China(Grant No.11302058); In this paper, an investigation on the nonlinear vibration, especially on the super-harmonic resonances, in a cracked rotor system is carried out to provide a novel idea for the detection of crack faults in rotor syst...; 关键词：super-harmonic responses cracked rotor system inertial excitation early detection of crack faults

Hydro-mechanical modeling of impermeable discontinuity in rock by extended finite element method被引量：3: 《Journal of Central South University》2015年第11期4337-4346,共10页郑安兴罗先启; Project(2011CB013505)supported by the National Basic Research Program of China;Project(51279100)supported by the National Natural Science Foundation of China; The extended finite element method(XFEM) is a numerical method for modeling discontinuities within the classical finite element framework. The computation mesh in XFEM is independent of the discontinuities, such that ...; 关键词：extended FINITE element method CRACK HYDRAULIC fra

Simulation of hydraulic fracture utilizing numerical manifold method被引量：16: 《Science China(Technological Sciences)》2015年第9期1542-1557,共16页ZHANG GuoXin LI Xu LI HaiFeng; supported by the National Natural Science Foundation of China(Grant Nos.51439005&51209235);the National Basic Research Program of China("973"Project)(Grant Nos.2013CB035904,2013CB-036406); A 2nd order numerical manifold method(NMM) based method is developed to simulate the hydraulic fractures propagating process in rock or concrete. The proposed method uses a weak coupling technique to analyze the fluid...; 关键词：hydraulic fracture numerical manifold method crack growth crack network flow sub-region boundary element method

Analysis and Numerical Simulation of Hydrofracture Crack Propagation in Coal-Rock Bed被引量：1: 《Computer Modeling in Engineering & Sciences》2015年第5期69-86,共18页Yiyu Lu Chenpeng Song Yunzhong Jia Binwei Xia Zhaolong Ge Jiren Tang Qian Li; jointly supported by 973 Program(NO.2014 CB239206);PCSIRT(NO.IRT13043);the National Science Foundation of China(NO.51374258,NO.51474158);the Open Projects of State Key Laboratory of Coal Mine Disaster Dynamics and Control(Chongqing University 2011DA105287-FW201412).; In underground coal mines,hydrofracture can cause the increase of breathability in the fractured coal bed.When the hydrofracture crack propagates to the interface between the coal bed and the roof-floor stratum,the cr...; 关键词：HYDROFRACTURE CRACK PROPAGATION coal-rock interface COAL MINE

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