云南高校图书馆联盟文献共享服务平台- MICROMECHANICS

MICROMECHANICS: 作品数：112被引量：262H指数：7; 导出分析报告; 相关领域：理学更多>>; 相关作者：胡更开夏明宁建国刘海峰廖力更多>>; 相关机构：北京理工大学中南大学宁夏大学四川大学更多>>; 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国家教育部博士点基金中国航空科学基金更多>>

Micromechanical modeling of hollow cylinder torsional shear test on sand using discrete element method: 《Journal of Rock Mechanics and Geotechnical Engineering》2024年第12期5193-5208,共16页Shunxiang Song Pei Wang Zhenyu Yin Yi Pik Cheng; supports from the National Key R&D Program of China(Grant No.2023YFC3009400);Research Grants Council of Hong Kong(Grant Nos.15220221 and 15229223).; Previous studies on the hollow cylinder torsional shear test(HCTST)have mainly focused on the macroscopic behavior,while the micromechanical responses in soil specimens with shaped particles have rarely been investiga...; 关键词：SAND Hollow cylinder torsional shear test(HCTST) Discrete element method(DEM) Principal stress rotation MICROMECHANICS ANISOTROPY

Micromechanics in Mg alloys:Role of hard Al2RE precipitates: 《Journal of Materials Science & Technology》2024年第33期112-128,共17页Hui Su Junsheng Wang Chengpeng Xue Guangyuan Tian Shuo Wang Xinghai Yang Quan Li Yisheng Miao Zhihao Yang Yanan Meng; supported by the National Natural Science Foundation of China(No.52073030);the National Natural Science Foundation of China-Guangxi Joint Fund(No.U20A20276).; The influence of hard Al_(2)RE phases(Sc,Y,La,Ce,Pr,Nd,Sm,Eu,Gd,Tb,Dy,Ho,Er,Tm,Yb,and Lu)on the overall and local deformation as well as damage mechanism of Mg alloys has been studied by using a crystal plasticity mod...; 关键词：Al_(2)RE phase Dislocation density Damage and fracture CPFEM Deformation behavior

Phase-Field Modeling of Thermal Fracture and Shear Heating in Rocks with Degraded Thermal Conductivity Across Crack: 《Acta Mechanica Solida Sinica》2024年第5期711-726,共16页Tao You Qizhi Zhu Weijian Li Jianfu Shao; funding provided by the National Natural Science Foundation of China(No.12202137);TY's contribution is funded by the China and Germany Postdoctoral Exchange Program(Grant No.ZD202137).The first author(TY)would like to express his gratitude to Prof.Keita Yoshioka for reviewing this manuscript and for his invaluable feedback.; By incorporating two different fracture mechanisms and salient unilateral effects in rock materials,we propose a thermomechanical phase-field model to capture thermally induced fracture and shear heating in the proces...; 关键词：PHASE-FIELD MICROMECHANICS Heat transfer Thermal conductivity degradation Shear heating

Mechanical heterogeneity characterization of coal materials based on nano-indentation experiments: 《Journal of Central South University》2024年第9期3142-3155,共14页ZHANG Qi LI Xiang-chun LI Biao MENG Jun-qing NIE Bai-sheng LU Wei-dong; Projects(U23B2093,52274245)supported by the National Natural Science Foundation of China;Project(KFJJ22-15M)supported by the Opening Project of State Key Laboratory of Explosion Science and Technology,China。; To investigate the complex macro-mechanical properties of coal from a micro-mechanical perspective,we have conducted a series of micro-mechanical experiments on coal using a nano-indentation instrument.These experimen...; 关键词：nano-indentation experiment MICROMECHANICS heterogeneity characterization COAL

A macro-mesoscopic constitutive model for porous and cracked rock under true triaxial conditions: 《Journal of Rock Mechanics and Geotechnical Engineering》2024年第8期3080-3098,共19页Li Qian Zuguo Mo Jianhai Zhang Xianglin Xing Ru Zhang Tianzhi Yao Yunpeng Gao; funding support from the National Natural Science Foundation of China(Grant No.U1965203);“Dynamic analysis method of complex rock underground engineering in the Hengduan Mountains”project(Grant No.P43419);the Sichuan University Postdoctoral Research Fund(Grant No.2023SCU12123).; The complex mechanical and damage mechanisms of rocks are intricately tied to their diverse mineral compositions and the formation of pores and cracks under external loads.Numerous rock tests reveal a complex interpla...; 关键词：MICROMECHANICS Macroemesoscopic HOMOGENIZATION Constitutive model Competitive effect

Micromechanics of Thermal Conductive Composites:Review,Developments and Applications: 《Acta Mechanica Solida Sinica》2024年第2期215-237,共23页Guannan Wang Yulin Huang Mengyuan Gao Qiang Chen; supported by the National Key Research and Development Program of China(No.2020YFA0711700);the National Natural Science Foundation of China(No.12322206,U22A200531,and 12002303).; Micromechanics investigations of composites with fiber-shaped reinforcement are extensively applied in the engineering design and theoretical analysis of thermal composites in the aerospace engineering and high-tech i...; 关键词：Micromechanics models Thermal fibrous composites Microstructural detail-free models Semi-analytical and numerical methods Interfacial effects Woven composites Natural composites

Finite Element Simulations on Failure Behaviors of Granular Materials with Microstructures Using a Micromechanics-Based Cosserat Elastoplastic Model: 《Computer Modeling in Engineering & Sciences》2024年第3期2305-2338,共34页Chenxi Xiu Xihua Chu; the National Natural Science Foundation of China through Contract/Grant Numbers 12002245,12172263 and 11772237;Chongqing Jiaotong University through Contract/Grant Number F1220038.; This paper presents a micromechanics-based Cosserat continuum model for microstructured granular materials.By utilizing this model,the macroscopic constitutive parameters of granular materials with different microstru...; 关键词：Granular materials MICROMECHANICS Cosserat elastoplastic model MICROSTRUCTURES failure behaviors

Study on macro and micro shear strength of continuously graded and gap-graded sand: 《Particuology》2024年第3期101-116,共16页Peiran Zhao Songyu Liu Kai Wu; the financial support provided by the National Natural Science Foundation of China(grant No.51608112);the Fundamental Research Funds for the Central Universities(grant No.2242023K40018).; The particle gradation of sand has a significant influence on its shear strength,yet the similarities and differences between the effects of continuous and gap grading have yet to be fully explored.In this study,the d...; 关键词：Biaxial test Shear strength Particle gradation Discrete element method MICROMECHANICS

Three-dimensional computational characterization of grain size and texture effects in magnesium alloys: 《Journal of Magnesium and Alloys》2023年第10期3657-3672,共16页Shahmeer Baweja Shailendra P.Joshi; support provided by the National Science Foundation under Grant Number CMMI-1932976;the U.S.Army Research Laboratory under Cooperative Agreement Number W911NF-12-2-0022。; This work systematically investigates the microstructure-property relationship in Mg alloys. Emphasis is placed on understanding, through high resolution crystal plasticity modeling, how grain size and texture collect...; 关键词：Mg alloys Microstructure-property relations Grain-size effect Crystal plasticity Damage micromechanics

Enhancing the elastoplastic damage constitutive model for clayey rocks: Incorporating anisotropy, saturation, time-dependent, and debonding effects: 《Journal of Rock Mechanics and Geotechnical Engineering》2023年第9期2291-2312,共22页Jueliang Chen Siyu Liu Wanqing Shen Jianfu Shao Minh-Ngoc Vu; This paper introduced a novel microstructure-based constitutive model designed to comprehensively characterize the intricate mechanical behavior of anisotropic clay rocks under the influence of water saturation.The pr...; 关键词：Clayey rocks MICROMECHANICS ANISOTROPY Plasticity VISCOPLASTICITY Debonding damage SATURATION

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