Term of Award
Spring 2024
Degree Name
Master of Science, Civil Engineering
Document Type and Release Option
Thesis (open access)
Copyright Statement / License for Reuse
This work is licensed under a Creative Commons Attribution 4.0 License.
Department
Department of Civil Engineering and Construction
Committee Chair
Dr. Xiaoming Yang
Committee Member 1
Dr. Junan Shen
Committee Member 2
Dr. Soonkie Nam
Abstract
The understanding of Bender Element mechanism and utilization of Particle Flow Code (PFC) to simulate the seismic wave behavior is important to test the dynamic behavior of soil particles. Both discrete and finite element methods can be used to simulate wave behavior. However, Discrete Element Method (DEM) is mostly suitable, as the micro scaled soil particle cannot be fully considered as continuous specimen like a piece of rod or aluminum. Recently DEM has been widely used to study mechanical properties of soils at particle level considering the particles as balls. This study represents a comparative analysis of Voigt and Best Fit theorem with DEM simulation. Multiple disk shaped uniformly distributed particles are arranged in a square shaped box. This particles are vibrated with a BE that generates shear and compressive wave within boundary area. Wave velocity is then recorded based on the movement of the particles at specific locations. Both S and P wave velocity is monitored based on the contact stiffness for both triangular and square arrangement. The study summarizes that DEM can accurately simulate the wave behavior. Also it shows that first peak method is a promising way to measure wave velocity. However, deviation between theoretical and simulation result occurs due to assuming non uniform stress and discrete element media.
Recommended Citation
HUSSAN, SYED TAHMID, "Simulation of Wave Propagation in Granular Particles Using a Discrete Element Model" (2024). Electronic Theses and Dissertations. 2762.
https://digitalcommons.georgiasouthern.edu/etd/2762
Research Data and Supplementary Material
No
Included in
Applied Mechanics Commons, Civil Engineering Commons, Computational Engineering Commons, Data Science Commons, Engineering Mechanics Commons, Engineering Physics Commons, Geological Engineering Commons, Geology Commons, Geophysics and Seismology Commons, Geotechnical Engineering Commons, Mechanics of Materials Commons, Numerical Analysis and Computation Commons, Oil, Gas, and Energy Commons, Other Applied Mathematics Commons, Other Civil and Environmental Engineering Commons, Other Earth Sciences Commons, Other Engineering Science and Materials Commons, Partial Differential Equations Commons, Sedimentology Commons, Soil Science Commons, Statistical Models Commons, Tectonics and Structure Commons
