NSTL国家科技图书文献中心

1. Enhancing discrete element model accuracy for lunar soil: Calibration and validation of mesoscopic parameters NSTL国家科技图书文献中心

Bu X. | Xu X.... - 《Planetary and space science》 - 2025,255(Jan.) - 1.1～1.9 - 共9页

摘要： effect of mesoscopic* parameters on peak stress and* | results show that six meso-parameters* have significant* | lunar soil mechanical parameters. | © 2024 Elsevier LtdTo enhance the precision of | the discrete element model for lunar soil-tool

关键词： Discrete element model | Lunar soil | Mesoscopic parameters | Van der waals force

2. Mesoscopic shear evolution characteristics of frozen soil-concrete interface NSTL国家科技图书文献中心

Wan X. | Zhou H.... - 《Cold regions science and technology》 - 2025,229(Jan.) - 1.1～1.19 - 共19页

摘要： direct shear was developed. The mesoscopic parameters | simulations were conducted to study the mesoscopic* evolution* | © 2024The mechanical properties of frozen | -concrete interfaces affect the stability and durability | of engineering structures in cold regions. To

关键词： Frozen soil-concrete interface | Mesoscopic parameters | Numerical simulation | PFC model | Shear mechanical properties

3. Mesoscopic Freeze–Thaw Damage Model of Residual Soil Using a Discrete-Element Method under a Laminated-Wall Flexible-Boundary Condition NSTL国家科技图书文献中心

Yun Que | Yining Chen ... - 《International journal of geomechanics》 - 2025,25(3) - 1.1～1.20 - 共20页

摘要： macroscopic and mesoscopic* parameters. The deterioration of* | damage model of the mesoscopic* parameters of residual* | concentrated, impacting mesoscopic* parameters. Conversely* | the mesoscopic* parameters facilitated an effective* | . However, their adverse effect on the mesoscopic-level

关键词： Laminated wall | Flexible boundary | Freezethaw | Residual soil | Mesoscopic damage parameters | Discrete-element method

4. Mesoscopic Numerical Simulation Method for Determining the Wet-Screening Effect in the Evaluation of Dam Concrete NSTL国家科技图书文献中心

Junjing Cai | Lu Shen - 《Journal of Materials in Civil Engineering》 - 2025,37(2) - 4024495.1～4024495.14 - 共14页

摘要： mesoscopic parameters. By considering the effects of wet | to the wet-screening effect. Mesoscopic numerical | . The meso-parameters* of numerical simulation* | the trial-and-error method to determine mesoscopic | parameters makes it accidental for numerical simulation

关键词： Dam concrete | Wet-screening effect | Stress-strain relationship | Mesoparameters | Size effect

5. Mesoscopic evaluation of dynamic water scour resistance of basalt fiber-reinforced porous asphalt concrete using CT scanning technology NSTL国家科技图书文献中心

Dongya Ren | Pengfei Wu ... - 《Construction and Building Materials》 - 2025,465(Feb.28) - 140186.1～140186.15 - 共15页

摘要： eight mesoscopic* parameters from basalt* | between the eight mesoscopic* parameters extracted by CT* | mesoscopic parameters in BF-PAC is lower than that of PAC | resistance of PAC at the mesoscopic* level remains unclear* | parameters analyzed include the number of pores, pore

关键词： Asphalt mixture | Basalt fiber | CT scanning technology | Mesoscopic pore characteristics | Moisture sensitivity | Correlation

6. Study on the microstructural evolution of gangue cemented backfill under uniaxial compression NSTL国家科技图书文献中心

Huang, Dongmei | Pan, Xin ... - 《Computational particle mechanics》 - 2025,12(1) - 557～571 - 共15页

摘要： relationship between mesoscopic* parameters and macroscopic* | parameters of the model based on the results of indoor | In cemented paste backfill (CPB), the | connection mode and spatial position arrangement of | particles determine the deformation, structural strength

关键词： Cemented paste backfill | Digital image processing | Particle flow code method | Microscopic parameters

7. Numerical Investigation of Hydro-Mechanical (HM) Effect on Meso-Failure Properties of Granite Using Improved HM Grain-Based Model NSTL国家科技图书文献中心

Wang, Sai | Liu, Xuewei ... - 《Rock Mechanics and Rock Engineering》 - 2025,58(1) - 1271～1294 - 共24页

摘要：, the algorithm and mesoscopic* parameters calibration* | Investigating the cracking behavior of rock | under hydro-mechanical coupling (HM) is essential for | understanding macro-failure mechanism. However, the effect of | rock mineral structure on failure process is less

关键词： HM-GBM | Hydro-mechanical coupling | Meso-failure behavior | Granite | DEM

8. Incipient particle motion in the expansion of water-inrush channel by considering the 3D relative exposure degree NSTL国家科技图书文献中心

Wu J. | Dai G.H.... - 《Computers and geotechnics》 - 2025,177(Jan. Pt.A) - 1.1～1.20 - 共20页

摘要： test are used to get the mesoscopic parameters | © 2024 Elsevier LtdWater inrush is a high-risk | disaster in the construction of water-rich tunnels. The | loss of particles on the sidewall of the water inrush | channel is the key factor. To study the incipient

关键词： 3D relative exposure degree | DEM-CFD coupling | Flow velocity | Incipient particle motion | Water-inrush channel expansion

9. Macroscopic and Mesoscopic Damage Characteristics and Energy Evolution Laws of Rock Mass With Double Arcuate Fractures Under Uniaxial Compression NSTL国家科技图书文献中心

Qingyang Ren | Senlin Gao ... - 《International journal for numerical and analytical methods in geomechanics》 - 2025,49(3) - 1038～1057 - 共20页

摘要： using the PFC2D. Moreover, mesoscopic* parameters of* | ABSTRACT In order to reveal the influence of | double arc‐shaped fissure dip angles on the macro‐micro | failure and energy evolution laws of rock masses, a | numerical model of red sandstone was firstly established

关键词： constitutive model | crack propagation | dissipative energy | double arc‐shaped fissure | particle flow code

10. (108946)Mesoscopic coupled plasticity-damage model of rough surface considering size-dependent plasticity NSTL国家科技图书文献中心

Bin Li | Bohong Zhang ... - 《Engineering failure analysis》 - 2025,167(Pt.A) - 1～16 - 共16页

摘要： effect at mesoscopic* scale have been revealed by many* | when conducting mesoscopic* scale studies in tribology* | friction and wear at the mesoscopic* scale suffer from* | propose a mesoscopic* coupled plasticity-damage model by* | parameters for bearing bushing material of an engine are

摘要： effect of mesoscopic* parameters on peak stress and* | results show that six meso-parameters* have significant* | lunar soil mechanical parameters. | © 2024 Elsevier LtdTo enhance the precision of | the discrete element model for lunar soil-tool

关键词： Discrete element model | Lunar soil | Mesoscopic parameters | Van der waals force

摘要： direct shear was developed. The mesoscopic parameters | simulations were conducted to study the mesoscopic* evolution* | © 2024The mechanical properties of frozen | -concrete interfaces affect the stability and durability | of engineering structures in cold regions. To

关键词： Frozen soil-concrete interface | Mesoscopic parameters | Numerical simulation | PFC model | Shear mechanical properties

关键词： Laminated wall | Flexible boundary | Freezethaw | Residual soil | Mesoscopic damage parameters | Discrete-element method

摘要： mesoscopic parameters. By considering the effects of wet | to the wet-screening effect. Mesoscopic numerical | . The meso-parameters* of numerical simulation* | the trial-and-error method to determine mesoscopic | parameters makes it accidental for numerical simulation

关键词： Dam concrete | Wet-screening effect | Stress-strain relationship | Mesoparameters | Size effect

摘要： eight mesoscopic* parameters from basalt* | between the eight mesoscopic* parameters extracted by CT* | mesoscopic parameters in BF-PAC is lower than that of PAC | resistance of PAC at the mesoscopic* level remains unclear* | parameters analyzed include the number of pores, pore

关键词： Asphalt mixture | Basalt fiber | CT scanning technology | Mesoscopic pore characteristics | Moisture sensitivity | Correlation

摘要： relationship between mesoscopic* parameters and macroscopic* | parameters of the model based on the results of indoor | In cemented paste backfill (CPB), the | connection mode and spatial position arrangement of | particles determine the deformation, structural strength

关键词： Cemented paste backfill | Digital image processing | Particle flow code method | Microscopic parameters

摘要：, the algorithm and mesoscopic* parameters calibration* | Investigating the cracking behavior of rock | under hydro-mechanical coupling (HM) is essential for | understanding macro-failure mechanism. However, the effect of | rock mineral structure on failure process is less

关键词： HM-GBM | Hydro-mechanical coupling | Meso-failure behavior | Granite | DEM

摘要： test are used to get the mesoscopic parameters | © 2024 Elsevier LtdWater inrush is a high-risk | disaster in the construction of water-rich tunnels. The | loss of particles on the sidewall of the water inrush | channel is the key factor. To study the incipient

关键词： 3D relative exposure degree | DEM-CFD coupling | Flow velocity | Incipient particle motion | Water-inrush channel expansion

摘要： using the PFC2D. Moreover, mesoscopic* parameters of* | ABSTRACT In order to reveal the influence of | double arc‐shaped fissure dip angles on the macro‐micro | failure and energy evolution laws of rock masses, a | numerical model of red sandstone was firstly established

关键词： constitutive model | crack propagation | dissipative energy | double arc‐shaped fissure | particle flow code

摘要： effect at mesoscopic* scale have been revealed by many* | when conducting mesoscopic* scale studies in tribology* | friction and wear at the mesoscopic* scale suffer from* | propose a mesoscopic* coupled plasticity-damage model by* | parameters for bearing bushing material of an engine are

关键词： Mesoscopic scale | Rough surface | Size effect | Asperity | Constitutive relations

4008-161-200 800-990-8900

国家科技图书文献中心

摘要： effect of mesoscopic parameters on peak stress and | results show that six meso-parameters have significant | lunar soil mechanical parameters. | © 2024 Elsevier LtdTo enhance the precision of | the discrete element model for lunar soil-tool

关键词： Discrete element model | Lunar soil | Mesoscopic parameters | Van der waals force

摘要： direct shear was developed. The mesoscopic parameters | simulations were conducted to study the mesoscopic evolution | © 2024The mechanical properties of frozen | -concrete interfaces affect the stability and durability | of engineering structures in cold regions. To

关键词： Frozen soil-concrete interface | Mesoscopic parameters | Numerical simulation | PFC model | Shear mechanical properties

摘要： macroscopic and mesoscopic parameters. The deterioration of | damage model of the mesoscopic parameters of residual | concentrated, impacting mesoscopic parameters. Conversely | the mesoscopic parameters facilitated an effective | . However, their adverse effect on the mesoscopic-level

关键词： Laminated wall | Flexible boundary | Freezethaw | Residual soil | Mesoscopic damage parameters | Discrete-element method

摘要： mesoscopic parameters. By considering the effects of wet | to the wet-screening effect. Mesoscopic numerical | . The meso-parameters of numerical simulation | the trial-and-error method to determine mesoscopic | parameters makes it accidental for numerical simulation

关键词： Dam concrete | Wet-screening effect | Stress-strain relationship | Mesoparameters | Size effect

摘要： eight mesoscopic parameters from basalt | between the eight mesoscopic parameters extracted by CT | mesoscopic parameters in BF-PAC is lower than that of PAC | resistance of PAC at the mesoscopic level remains unclear | parameters analyzed include the number of pores, pore

关键词： Asphalt mixture | Basalt fiber | CT scanning technology | Mesoscopic pore characteristics | Moisture sensitivity | Correlation

摘要： relationship between mesoscopic parameters and macroscopic | parameters of the model based on the results of indoor | In cemented paste backfill (CPB), the | connection mode and spatial position arrangement of | particles determine the deformation, structural strength

关键词： Cemented paste backfill | Digital image processing | Particle flow code method | Microscopic parameters

摘要：, the algorithm and mesoscopic parameters calibration | Investigating the cracking behavior of rock | under hydro-mechanical coupling (HM) is essential for | understanding macro-failure mechanism. However, the effect of | rock mineral structure on failure process is less

关键词： HM-GBM | Hydro-mechanical coupling | Meso-failure behavior | Granite | DEM

摘要： test are used to get the mesoscopic parameters | © 2024 Elsevier LtdWater inrush is a high-risk | disaster in the construction of water-rich tunnels. The | loss of particles on the sidewall of the water inrush | channel is the key factor. To study the incipient

关键词： 3D relative exposure degree | DEM-CFD coupling | Flow velocity | Incipient particle motion | Water-inrush channel expansion

摘要： using the PFC2D. Moreover, mesoscopic parameters of | ABSTRACT In order to reveal the influence of | double arc‐shaped fissure dip angles on the macro‐micro | failure and energy evolution laws of rock masses, a | numerical model of red sandstone was firstly established

关键词： constitutive model | crack propagation | dissipative energy | double arc‐shaped fissure | particle flow code

摘要： effect at mesoscopic scale have been revealed by many | when conducting mesoscopic scale studies in tribology | friction and wear at the mesoscopic scale suffer from | propose a mesoscopic coupled plasticity-damage model by | parameters for bearing bushing material of an engine are

关键词： Mesoscopic scale | Rough surface | Size effect | Asperity | Constitutive relations

4008-161-200 800-990-8900

国家科技图书文献中心

摘要： effect of mesoscopic* parameters on peak stress and* | results show that six meso-parameters* have significant* | lunar soil mechanical parameters. | © 2024 Elsevier LtdTo enhance the precision of | the discrete element model for lunar soil-tool

摘要： direct shear was developed. The mesoscopic parameters | simulations were conducted to study the mesoscopic* evolution* | © 2024The mechanical properties of frozen | -concrete interfaces affect the stability and durability | of engineering structures in cold regions. To

摘要： mesoscopic parameters. By considering the effects of wet | to the wet-screening effect. Mesoscopic numerical | . The meso-parameters* of numerical simulation* | the trial-and-error method to determine mesoscopic | parameters makes it accidental for numerical simulation

摘要： eight mesoscopic* parameters from basalt* | between the eight mesoscopic* parameters extracted by CT* | mesoscopic parameters in BF-PAC is lower than that of PAC | resistance of PAC at the mesoscopic* level remains unclear* | parameters analyzed include the number of pores, pore

摘要： relationship between mesoscopic* parameters and macroscopic* | parameters of the model based on the results of indoor | In cemented paste backfill (CPB), the | connection mode and spatial position arrangement of | particles determine the deformation, structural strength

摘要：, the algorithm and mesoscopic* parameters calibration* | Investigating the cracking behavior of rock | under hydro-mechanical coupling (HM) is essential for | understanding macro-failure mechanism. However, the effect of | rock mineral structure on failure process is less

摘要： using the PFC2D. Moreover, mesoscopic* parameters of* | ABSTRACT In order to reveal the influence of | double arc‐shaped fissure dip angles on the macro‐micro | failure and energy evolution laws of rock masses, a | numerical model of red sandstone was firstly established