QH-E

reconstituted simulant

Literature

Using papers

Effect of grain size distribution on stress-strain behavior of lunar soil simulants

M. M. Monkul, A. Dacic | 2017 | Advances in Space Research

DOI 10.1016/j.asr.2017.04.029

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Methods

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Properties

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Defining / measurement papers

Discrete Element Modeling of Strength Properties and Failure Modes of Qh-E Lunar Soil Simulant at Low Confining Stresses

S. Province, W. Engineering, X. Engineering, T. Engineering | 2018 | Stavební obzor - Civil Engineering Journal

DOI 10.14311/cej.2018.02.0017

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Methods

Triaxial compression testmechanical testing DEM simulationnumerical simulation Triaxial compression simulationnumerical simulation Particle size distribution analysisgrain size analysis Strength envelope determinationmechanical property analysis Effects of porosity and friction coefficient on stress - strain curvesmechanical Discrete Element Modeling (DEM) of Strength Properties and Failure Modes of QH-E Lunar Soil Simulant at Low Confining StMechanical Testing Comparison of Failure Modes of QH-E Lunar Soil Simulant Between Experimental Observation and Numerical SimulationMechanical Testing Analysis of Porosity and Friction Coefficient Effects on Strength Properties of QH-E Lunar Soil SimulantMechanical Testing Particle size distributionPhysical characterization | Benchmarking and comparison Helium pycnometryDensity characterization | Benchmarking and comparison Angle of repose measurementPowder flow characterization | Mobility and excavation Triaxial compression testingGeotechnical characterization | Mobility and excavation Cone penetration testingGeotechnical characterization | Mobility and excavation Compressive strength testingMechanical testing | Construction and infrastructure Elastic modulus testingMechanical testing | Construction and infrastructure

Properties

peak stressdecrease with the increase of the porosity100%residual stressdecrease with the increase of the porosity100%axial straindecrease with the increase of the porosity100%peak stressincrease with the increase of the friction coefficient100%residual stressincrease with the increase of the friction coefficient100%axial strainincrease with the increase of the friction coefficient100%failure modeV-type shear zone (double shear bands)100%Porosity0.38100%Particle size1~1.5 mm100%Particle density1640 kg/m³100%Normal stiffness1.0e8 N/m100%Tangential stiffness0.85e8 N/m100%Friction coefficient0.25100%Normal strength1.0e5 N/m100%Tangential strength1.0e5 N/m100%Cohesion3.1 kPa100%Internal friction angle51.55°100%axial strain1.77%100%axial strain1.85%100%axial strain1.35%100%axial strain2.25%100%Peak Deviatoric Stressnot specified100%Residual Stressnot specified100%Axial Strain at Peak Stressnot specified100%Porositynot specified100%Friction Coefficientnot specified100%Shear Band TypeV-type shear zone (double shear bands) at low confining stress100%Shear Band Transitiontransition to single shear band at higher confining stress100%Particle size distributionmeasured by sieving or laser diffraction70%Angle of reposemeasured as static or dynamic repose angle70%Friction anglederived from triaxial or shear-strength testing70%Bearing capacitymeasured from penetration resistance or cone index70%Compressive strengthmeasured by compression testing70%Young's modulusmeasured or derived as elastic modulus70%

DEM analysis of the dynamic characteristics of QH-E lunar soil simulant under cyclic triaxial tests

Y.-L. Li, Z.-R. Yang, W.-P. Wu | 2024 | Acta Astronautica

DOI 10.1016/j.actaastro.2024.03.034

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Methods

cyclic triaxial testsmechanical Influence of frequency on dynamic characteristicsSimulation Influence of waveform on dynamic characteristicsSimulation Influence of CSR on dynamic characteristicsSimulation Influence of confining pressure on dynamic characteristicsSimulation Dynamic modulusmeasured Damping ratiomeasured cyclic triaxial testsdynamic Cyclic hysteresis loopcharacterization Influence of frequency on dynamic characteristicscharacterization Influence of waveforms on dynamic characteristicscharacterization loading_intensity_L0_analysisdynamic_behavior axial_strain_analysisdynamic_response dynamic_modulus_analysismechanical_properties damping_ratio_analysisdynamic_response confining_pressure_effect_analysisdynamic_characteristics CSR_effect_analysisdynamic_characteristics axial_strain_vs_cycle_number_analysisdynamic_response dynamic_modulus_vs_cycle_number_analysismechanical_properties axial_strain_vs_confining_pressure_analysisdynamic_response dynamic_modulus_vs_confining_pressure_analysismechanical_properties axial_strain_vs_CSR_analysisdynamic_response

Properties

Dynamic modulusVaries with frequency, waveform, CSR, and confining pressure90%Damping ratioVaries with frequency, waveform, CSR, and confining pressure90%Cyclic hysteresis loopObserved in the simulation results90%Content TypeImage and Thumbnail Files90%Dynamic modulusvaries with confining pressure and CSR100%Damping ratiovaries with confining pressure and CSR100%dynamic modulusvariable50%axial strainvariable50%shear modulusvariable50%dynamic modulusslope of the Nth cycle in the dynamic strain-stress curve90%damping ratioarea of the hysteresis loop divided by area of triangle90%confining pressure140 mm (initial height) and 70 mm (bottom diameter)90%particle size1 mm to 1.5 mm90%relative density83%90%Dynamic moduluslowest under rectangle wave, followed by sine wave, highest under triangle wave100%Axial strainlargest under rectangle wave, followed by sine wave, smallest under triangular wave100%Damping ratioincreases with decreasing frequency at the stage of small shear strain, frequency has significant impact100%axial_strain0.15100%dynamic_modulus5 GPa100%dynamic_modulus3.7 GPa100%dynamic_modulus3.0 GPa100%axial_strain0.08100%axial_strain0.043100%dynamic_modulusincreases with increasing confining pressure when CSR 0.6100%axial_strainfirst increase then trend to be stable with increasing cycles100%damping_ratioslightly decreases with increasing confining pressure100%damping_ratioslightly increases with increasing CSR100%Dynamic shear modulusMeasured for CAS-1 and LSS-ISAC-195%Damping ratioMeasured for CAS-1 and LSS-ISAC-195%Strain accumulationObserved in cyclic loading tests95%Energy dissipationMeasured during cyclic triaxial simulations95%Shear band formationObserved in lunar regolith under cyclic loading95%Surface energy effectsInfluence on mechanical properties of lunar soil95%Shear modulus degradationObserved in soft marine clays under cyclic loading80%Dynamic parametersInfluence of kaolin content and cyclic stress ratio on subgrade soils75%Fatigue propertiesWaveform effect on fatigue properties of intact sandstone under uniaxial cyclic loading70%

Study on Mechanical Properties of QH-E Lunar Soil Simulant under Conventional Triaxial and Cyclic Triaxial Tests

M. Meier, A. Hoelzl, Z. Liu, X. Shi, H. Naito, T. Iezaki, W. Architecture, W. Engineering | 2024 | Journal of Physics: Conference Series

DOI 10.1088/1742-6596/2736/1/012023

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Methods

cyclic triaxial testsmechanical conventional triaxial testmechanical cyclic triaxial testmechanical Triaxial compression testsmechanical Discrete element modeling (DEM)numerical Direct shear testingGeotechnical characterization | Mobility and excavation

Properties

peak deviatoric stressincreases with confining pressure100%residual stressincreases with confining pressure100%failure modesreferenced in prior studies100%