首页|Direct measurement and theoretical prediction model of interparticle adhesion force between irregular planetary regolith particles

Direct measurement and theoretical prediction model of interparticle adhesion force between irregular planetary regolith particles

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
  • 维普
Interparticle adhesion force has a controlling effect on the physical and mechanical properties of plane-tary regolith and rocks.The current research on the adhesion force of planetary regolith and rock particles has been primarily based on the assumption of smooth spherical particles to calculate the intergranular adhesion force;this approach lacks consideration for the adhesion force between irregular shaped parti-cles.In our study,an innovative approach was established to directly measure the adhesion force between the arbitrary irregular shaped particles;the probe was modified using simulated lunar soil par-ticles that were a typical representation of planetary regolith.The experimental results showed that for irregular shaped mineral particles,the particle size and mineral composition had no significant influence on the interparticle adhesion force;however,the complex morphology of the contact surface predomi-nantly controlled the adhesion force.As the contact surface roughness increased,the adhesion force grad-ually decreased,and the rate of decrease gradually slowed;these results were consistent with the change trend predicted via the theoretical models of quantum electrodynamics.Moreover,a theoretical model to predict the adhesion force between the irregular shaped particles was constructed based on Rabinovich's theory,and the prediction results were correlated with the experimental measurements.

Planetary regolithAdhesion forceParticle morphologyPrediction model

Heping Xie、Qi Wu、Yifei Liu、Yachen Xie、Mingzhong Gao、Cunbao Li

展开 >

State Key Laboratory of Intelligent Construction and Healthy Operation and Maintenance of Deep Underground Engineering,Shenzhen University,Shenzhen 518060,China

Guangdong Provincial Key Laboratory of Deep Earth Sciences and Geothermal Energy Exploitation and Utilization,Shenzhen University,Shenzhen 518060,China

Department of Civil&Mineral Engineering,University of Toronto,Toronto M5S 1A1,Canada

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaDepartment of Science and Technology of Guangdong ProvinceGuangdong Basic and Applied Basic Research Foundation

U22A201665210414112172230U20136032019ZT08G3152023A1515012654

2023

10.1016/j.ijmst.2023.10.002

矿业科学技术学报(英文版)
中国矿业大学

矿业科学技术学报(英文版)

CSTPCDCSCDEI
影响因子：1.222
ISSN：2095-2686
年,卷(期)：2023.33(11)
  • 4