Study on meso-mechanical mechanism and energy of moisture content on densification of salix psammophila particles

In order to reveal the role moisture content in the dense molding process of Salix psammophila, a discrete element model was established by PFC3D. Under the conditions of temperature of 100 °C and pressure of 0–180 kN, three groups of uniaxial compression simulation with different moisture content were done, and experiments are used to prove the feasibility of using discrete element to simulate the influence of moisture content on the dense molding of Salix psammophila. The significance of this paper on the influence of moisture content on the densification of salix psammophila is as follows: There are abundant shrub resources in northwest China. Effective control of moisture content is conducive to utilization of shrub biomass resources and improvement of product quality; Many scholars have studied the influence of moisture content on forming fuel from the same perspective, but this paper expounds the influence of moisture content on the dense forming of Salix psammophila from the perspectives of force, fracture, energy, etc., providing a reference for the study of the role of moisture content.