ASPERITY

作品数：47被引量：143H指数：6
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相关领域：天文地球更多>>
相关作者：李宗超赵伯明陶夏新王海云王建龙更多>>
相关机构：中国地震局地球物理研究所北京交通大学哈尔滨工业大学中国地震局工程力学研究所更多>>
相关期刊：《Computer Modeling in Engineering & Sciences》《Journal of Iron and Steel Research International》《Frontiers of Mechanical Engineering》《International Journal of Coal Science & Technology》更多>>
相关基金：国家自然科学基金中国博士后科学基金地震科学联合基金地震行业科研专项更多>>
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Study of hydro-mechanical behaviours of rough rock fracture with shear dilatancy and asperities using shear-flow model被引量：1
《Journal of Rock Mechanics and Geotechnical Engineering》2024年第10期4004-4016,共13页Luyu Wang Weizhong Chen Qun Sui 
support from the National Natural Science Foundation of China(Grant Nos.51991392 and 42293355).
The geometric properties of fracture surfaces significantly influence shear-seepage in rock fractures,introducing complexities to fracture modelling.The present study focuses on the hydro-mechanical behaviours of roug...
关键词：Rock fracture Stress-seepage coupling Shear-flow model Fracture asperity Shear dilatancy 
Numerical parametric study on the influence of location and inclination of large-scale asperities on the shear strength of concreterock interfaces of small buttress dams被引量：1
《Journal of Rock Mechanics and Geotechnical Engineering》2024年第10期4319-4329,共11页Dipen Bista Adrian Ulfberg Leif Lia Jaime Gonzalez-Libreros Fredrik Johansson Gabriel Sas 
the Research Council of Norway(Grant No.244029);the project‘Stable dams’,FORMAS(Grant No.2019e01236);the project‘Improved safety assessment of concrete dams’,and SVC(Grant No.VKU32019);the project‘Safe dams’,that supported the development of the research presented in this article.
When assessing the sliding stability of a concrete dam,the influence of large-scale asperities in the sliding plane is often ignored due to limitations of the analytical rigid body assessment methods provided by curre...
关键词：Concrete dam Buttress dam SLIDING Shear strength Concrete-rock interface Asperity inclination Asperity location 
Forecasting the Epicenter Area of a Future Strong Earthquake
《Open Journal of Earthquake Research》2024年第3期133-149,共17页Giulio Riga Paolo Balocchi 
It is clear from the literature data that the geometric characteristics of the seismogenic source are directly related to the nucleation of their strong earthquakes. Our study starts from the observation of the proxim...
关键词：Epicenter Mainshock SEQUENCE ASPERITY 
A new 3D plastoelastohydrodynamic lubrication model for rough surfaces
《Friction》2024年第6期1176-1193,共18页Shengyu YOU Jinyuan TANG Qiang WANG 
the National Key R&D Program of China(Grant No.2022YFB3402902).
Plastoelastohydrodynamic lubrication of rough surfaces(R-PEHL)is a cutting-edge area of research in interface fluid-structure coupling analysis.The existing R-PEHL model calculates the elastic-plastic deformation of r...
关键词：rough surface plastoelastohydrodynamic lubrication(PEHL) asperity plastic deformation semi-infinite space 
Analytical Expression for the Atomic Friction of a Single Asperity Based on the Prandtl-Tomlinson Model被引量：1
《Acta Mechanica Solida Sinica》2024年第3期416-422,共7页Weike Yuan Yue Ding Gangfeng Wang Xinrui Niu 
the National Natural Science Foundation of China(Grant Nos.12302141,12372100,and 12102322);the China Postdoctoral Science Foundation(Grant No.2023M732799);the General Research Fund(Project No.CityU 11302920)from the Research Grants Council of the Hong Kong Special Administrative Region is acknowledged.
The Prandtl-Tomlinson(PT)model has been widely applied to interpret the atomic friction mechanism of a single asperity.In this study,we present an approximate explicit expression for the friction force in the one-dime...
关键词：Atomic friction Stick-slip friction Prandtl-Tomlinson model Friction force microscope 
Analysis of the discrete contact characteristics based on the Greenwood-Williamson model and the localization principle被引量：1
《Friction》2024年第5期1042-1056,共15页Anastasiya A.YAKOVENKO Irina G.GORYACHEVA 
supported the Russian Science Foundation(No.22-49-02010).
The contact of a rigid body with nominally flat rough surface and an elastic half-space is considered.To solve the contact problem,the Greenwood-Williamson statistical model and the localization principle are used.The...
关键词：surface roughness ELASTICITY Greenwood-Williamson model localization principle asperity interaction 
Elastohydrodynamic Lubrication Interface Stiffness and Damping Considering Asperity Lateral Contact
《Acta Mechanica Solida Sinica》2024年第1期109-123,共15页Zhiqiang Gao Yu Zhang Xian Wei Yanfang Zhu Lixia Peng Weiping Fu Wen Wang 
supported by the National Natural Science Foundation of China(No.52005401,No.52375127);the Cultivation Scientific Research Project of Panzhihua University(2021PY001);the Opening Project of Material Corrosion and Protection Key Laboratory of Sichuan province(2022CL15);the Project for Science and Technology Plan of Henan Province(212102210445).
Elastohydrodynamic lubrication(EHL)point contact occurs between two rough surfaces at the mesoscopic level,while the interaction of rough surfaces involves contact between asperities at the microscale level.In most ca...
关键词：EHL interface Asperity lateral contact Contact stiffness DAMPING 
Shear behaviours and roughness degeneration based on a quantified rock joint surface description被引量：1
《International Journal of Mining Science and Technology》2023年第10期1301-1316,共16页Shubo Zhang Gang Wang Yujing Jiang Changsheng Wang Feng Xu 
the financial support from the National Natural Science Foundation of China(Nos.52079077 and 52209141);the Natural Science Foundation of Shandong Province,China(No.ZR2021QE069).
The asperity wear of rock joints significantly affects their shear behaviour.This study discusses the wear damage of the asperities on the joint surface,highlighting the roughness degradation characteristics during th...
关键词：Rock joint ROUGHNESS Shear behaviour WEAR ASPERITY 
Deformation-and rupture-controlled friction between PDMS and a nanometer-scale SiO_(x) single-asperity
《Friction》2023年第9期1755-1770,共16页Arnaud CARON 
This work investigates the friction between polydimethylsiloxane(PDMS)and silicon oxide(SiO_(x))in single asperity sliding contact by atomic force microscopy(AFM).Two friction dependences on the normal force are ident...
关键词：FRICTION adhesion fracture atomic force microscopy(AFM) polydimethylsiloxane(PDMS) 
Coupled evolution of piston asperity and cylinder bore contour of piston/cylinder pair in axial piston pump被引量：2
《Chinese Journal of Aeronautics》2023年第8期395-407,共13页Fei LYU Junhui ZHANG Shoujun ZHAO Kun LI Bing XU Weidi HUANG Haogong XU Xiaochen HUANG 
financially supported by the National Key Research and Development Program of China(No.2018YFB2001101);the National Outstanding Youth Science Foundation of China(No.51922093);the National Natural Science Foundation of China(No.51890882).
The wear condition of the piston/cylinder pair is crucial to the performance and reliability of the axial piston pump.The hard piston surface,the soft cylinder bore surface,and the interface oil film affects each othe...
关键词：ASPERITY CONTOUR Coupled evolution Piston/cylinder pair Wear process 
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