COHESIVE

作品数:177被引量:364H指数:8
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Coupled thermo-hydro-mechanical cohesive phase-field model for hydraulic fracturing in deep coal seams
《Applied Mathematics and Mechanics(English Edition)》2025年第4期663-682,共20页Jianping LIU Zhaozhong YANG Liangping YI Duo YI Xiaogang LI 
Project supported by the National Natural Science Foundation of China(No.42202314)。
A coupled thermal-hydro-mechanical cohesive phase-field model for hydraulic fracturing in deep coal seams is presented.Heat exchange between the cold fluid and the hot rock is considered,and the thermal contribution t...
关键词:phase-field method thermo-hydro-mechanical coupling indirect fracturing cohesive zone model deep coal seam 
Efficient Maximum Vertex(k,ℓ)-Biplex Computation on Bipartite Graphs
《Tsinghua Science and Technology》2025年第2期569-584,共16页Hongru Zhou Shengxin Liu Ruidi Cao 
partially supported by the Shenzhen Science and Technology Program(No.RCBS20210609103900003);Department of Education of Guangdong Province(Nos.2022KTSCX214,2023KTSCX226,and 2023KQNCX152);National Natural Science Foundation of China(No.62102117).
Cohesive subgraph search is a fundamental problem in bipartite graph analysis.Given integers k andℓ,a(k,ℓ)-biplex is a cohesive structure which requires each vertex to disconnect at most k orℓvertices in the other sid...
关键词:bipartite graphs cohesive subgraph search maximum vertex(k ℓ)-biplex branch-and-bound algorithm 
A cohesive-frictional elastoplastic constitutive model for rock joint
《Journal of Rock Mechanics and Geotechnical Engineering》2025年第2期1068-1084,共17页Hongying Wang Qiang Zhang Richeng Liu Tao Li Xiaowei Quan Yujing Jiang 
financial support from the National Natural Science Foundation of China(Grant Nos.52074269,52474157 and 51979272).
Rock joints always have a smaller strength,and it plays an important influence on the overall strength of rock mass.The mechanical behavior of rock joints is mainly governed by the surface topography,normal stress,and...
关键词:Rock joint Shear test Mechanical behavior Constitutive model Joint roughness coefficient 
刃宽对硬岩掘进影响的仿真及试验研究
《工程科学学报》2025年第1期13-24,共12页尚勇 孙靖东 姜海峰 许顺海 段红磊 孙朝阳 
国家重点研发计划资助项目(2022YFE0123700);国家自然科学基金资助项目(52161145407,U22A20186);北京建龙重工集团有限公司资助项目(2023-1222)。
滚刀在硬岩掘进中极易发生崩刃、偏磨等异常失效,研究硬岩掘进条件下刃型参数对滚刀破岩载荷和破岩效率的影响十分重要.本文采用滚刀破岩试验和仿真分析相结合的方法,从载荷曲线、破岩体积、破岩比能等方面分析了刃宽对滚刀破岩的影响....
关键词:滚刀刃宽 Cohesive模型 线切割试验 破岩载荷 破岩效率 
空间非合作目标粘附捕获动力学建模与仿真研究
《载人航天》2024年第6期815-824,共10页袁越宇 季如国 张晓龙 刘晓峰 
国家自然科学基金项目(12172215)。
针对使用粘附抓捕方法进行空间非合作目标捕获能力界限不清的问题,对具有Stewart碰撞缓冲平台的服务航天器的粘附抓捕动力学建模问题展开研究,提出了基于混合坐标多柔体动力学建模方法、罚函数接触建模方法和Cohesive模型的粘附捕获动...
关键词:空间非合作目标 粘附捕获 动力学建模 混合坐标 Cohesive模型 
Arch formation mechanism and discharge process of cohesive fine powder in a vibrated silo
《Particuology》2024年第11期373-385,共13页Jingzhen Zhu Kun Wang Yu Ma Wentao Xu Jiecai Long Xiwen Li 
The arch formation mechanism and discharge process of a very cohesive fine powder(calcium carbonate)in a vibrated silo was investigated by experiments and discrete element method(DEM)simulations.An experimental setup ...
关键词:Cohesive fine powder Silo discharge Vertical vibration Arch formation Flow rate Discrete element method 
Evaluation of the combined influence of geological layer property and in-situ stresses on fracture height growth for layered formations
《Petroleum Science》2024年第5期3222-3236,共15页Peng Tan Zhao-Wei Chen Liu-Ke Huang Qing Zhao Sha-Rui Shao 
the funding provided by the National Natural Science Foundation of China (No. 52334001, No. 42372337);National Key Research and Development Program of China (No. SQ2023YFE0100562);CPET Industrialization Fund Project (No. CPETCY202417);Natural Science Starting Project of SWPU (No. 2022QHZ009)。
Fracture geometry is important when stimulating low-permeability reservoirs for natural gas or oil production. The geological layer(GL) properties and contrasts in in-situ stress are the two most important parameters ...
关键词:Deep shale Hydraulic fracturing HF propagation Fracture interaction Cohesive zone method 
Semantic-aware coordinated transmission in cohesive clustered satellites:utility of information perspective被引量:1
《Science China(Information Sciences)》2024年第9期334-335,共2页Liang XU Jian JIAO Shiyao JIANG Ye WANG Qinyu ZHANG 
supported in part by National Natural Science Foundation of China(Grant Nos.62071141,62027802);Shenzhen Science and Technology Program(Grant Nos.JSGG20220831110801003,GXWD20231127123203001);Fundamental Research Funds for the Central Universities(Grant No.HIT.OCEF.2024046);Major Key Project of PCL(Grant No.PCL2024A01)。
The cohesive clustered satellite(CCS)concept integrates diverse satellite payloads from different orbits,such as communication,remote sensing,and navigation satellites,into mobile,geometrically stable clusters for eff...
关键词:PAYLOAD SATELLITES COORDINATED 
Seismic-induced surficial failure of cohesive slopes using three-dimensional limit analysis:A case study of the Wangjiayan landslide in Beichuan, China
《Earthquake Engineering and Engineering Vibration》2024年第3期537-545,共9页Gao Yufeng Liu Yang Geng Weijuan Zhang Fei 
National Natural Science Foundation of China under Grant Nos.52378335 and 52322808.
A seismic-induced landslide is a common geological catastrophe that occurs in nature.The Wangjiayan landslide,which was triggered by the Wenchuan earthquake,is a typical case in point.The Wanjiayan landslide caused ma...
关键词:LANDSLIDE Wenchuan earthquake surficial failure limit analysis stability QUASI-STATIC 
Extended finite element-based cohesive zone method for modeling simultaneous hydraulic fracture height growth in layered reservoirs被引量:1
《Journal of Rock Mechanics and Geotechnical Engineering》2024年第8期2960-2981,共22页Lei Yang Baixi Chen 
In this study,a fully coupled hydromechanical model within the extended finite element method(XFEM)-based cohesive zone method(CZM)is employed to investigate the simultaneous height growth behavior of multi-cluster hy...
关键词:Hydraulic fracturing Layered reservoir Simultaneous height growth In situ stress Fracture spacing Extended finite element method(XFEM) Cohesive zone method(CZM) 
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