Summary

This paper investigates the mechanical properties of QH-E lunar soil simulant under conventional and cyclic triaxial tests using PFC3D simulations. The study examines the effects of confining pressure and cyclic stress ratio on shear strength, dynamic modulus, and axial strain. The simulant's particle size distribution and porosity are specified, and simulations are conducted under low confining pressures to mimic lunar surface conditions. This paper investigates the mechanical properties of QH-E lunar soil simulant under conventional and cyclic triaxial tests. The simulant exhibits strain softening and dynamic modulus variations with confining pressure and cyclic loading. Key findings include peak deviatoric stress and residual stress increases with confining pressure, and dynamic modulus decreases with increasing confining pressure at a given CSR condition. This paper investigates the mechanical properties of QH-E lunar soil simulant under conventional and cyclic triaxial tests, referencing prior studies on JSC-1A, TJ-1, CAS-1, LSS-ISAC-1, and other simulants. It focuses on triaxial compression and cyclic loading behaviors, with experimental methods including discrete element mod

Methods and applications