Abstract
A particle system’s large-deformation shear flow exhibits obvious random characteristics, making accurate modeling of the particle system difficult. Particle systems, which are frequently used in engineering, are prone to breakage, which introduces additional uncertainty into the system. The purpose of this study was to conduct ring-shear experiments on a variety of common engineering materials in order to quantify the effect of the dynamic crushing process of the particle system on the instability of shear flow. Different shear fracture characteristics may result in a change in the volume trend of the system, from dilatancy to shrinkage. While the mean value of the crushable system’s stress ratio does not increase with shear rate, the stress ratio’s fluctuation characteristic parameters are negatively correlated with shear rate. As particles become more easily sheared, the initial value of the stress ratio fluctuation increases. The effect of shear rate on the fluctuation in the system stress ratio is determined indirectly by the degree of system fragmentation. The study of the particle system’s fluctuation characteristics will aid in developing a stochastic dynamic model for the landslide system in the future, allowing for improved prediction and prevention of landslide disasters.
Highlights
Debris flows are characterized by a high flow velocity, wide coverage, and the great harm that they cause
This research used the classification discussion method to lyze the degree of system fragmentation with Br, there will be a small difference in the summarize and discuss the screening data
The degree of system fragmentation is related to discussing the effect of the shear rate on the stress ratio for systems with different crushing the shear rate, and when analyzing the system stress ratio, it is necessary to decouple characteristics, and aand reasonable is dominant given from theaffecting perspective of particle the particle crushing shear rate explanation in clarifying the factors the system
Summary
Debris flows are characterized by a high flow velocity, wide coverage, and the great harm that they cause. In recent years, refined theoretical models based on μ(I) theory have been developed to better predict the behavioral characteristics of a particle system in the transition state [7,8,9]. It is worth noting, that existing theoretical models for particle flow analysis and modeling primarily focus on mean values of system mechanics, whereas the actual landslide impact force exhibits non-steady-state characteristics and can vary significantly [10,11]. There is no unified theory to describe the macroscopic shear stress fluctuation in particle systems
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
