Centrifuge Modeling of Rockfalls with Different Slope Surface Materials using the MPS Method

Rockfall, one of the common natural catastrophes, complicates the phenomena due to a mix of inherent predisposing variables and external factors such as slope surface material constants. In this study, aiming to investigate effects on the behavior of rockfall of parameters, a 50 G centrifuge experiment is implemented with two 45° inclined slope surfaces of different materials, two of which are different in hardness, and two aluminum cubes of different sizes, which are recorded by four high-speed cameras. The moving particle semi-implicit (MPS) method is a type of particle method that discretizes a continuum by using computation points as particles that move with the physical quantity with meshless and has attracted much attention because it is easier to model the object of analysis and can easily handle large deformation and fracture. From the perspective of verification and validation (V&V), the MPS method is employed to validate the results based on centrifuge experiments.