Yosef, T.Y.; Faller, R.K.; Fang, C.; Kim, S. Modeling Dynamics of Laterally Impacted Piles in Gravel Using Erosion Method. Geotechnics2023, 3, 1251-1278.
Yosef, T.Y.; Faller, R.K.; Fang, C.; Kim, S. Modeling Dynamics of Laterally Impacted Piles in Gravel Using Erosion Method. Geotechnics 2023, 3, 1251-1278.
Yosef, T.Y.; Faller, R.K.; Fang, C.; Kim, S. Modeling Dynamics of Laterally Impacted Piles in Gravel Using Erosion Method. Geotechnics2023, 3, 1251-1278.
Yosef, T.Y.; Faller, R.K.; Fang, C.; Kim, S. Modeling Dynamics of Laterally Impacted Piles in Gravel Using Erosion Method. Geotechnics 2023, 3, 1251-1278.
Abstract
Understanding the dynamic interaction between piles and surrounding soil under vehicular impacts is essential for effectively designing and optimizing soil-embedded vehicle barrier systems. The complex behavior of pile-soil systems under impact loading, attributed to the soil’s nonlinear behavior and large deformation experienced by both components, presents significant simulation challenges. Popular computation techniques, such as the Updated Lagrangian Finite Element Method (UL-FEM), encounter difficulties in scenarios marked by large soil deformation, e.g., impacts involving rigid piles. While mesh-free particle and discrete element methods offer another option, their computational demands for field-scale pile-soil impact simulations are considerable. We introduce the erosion method to bridge this gap by integrating UL-FEM with an erosion algorithm designed for simulating large soil deformations during vehicular impacts. Validation against established physical impact tests confirmed the method’s effectiveness for flexible and rigid pile failure mechanisms. Additionally, this method was used to investigate the effects of soil mesh density, soil domain sizes, and boundary conditions on the dynamic impact response of pile-soil systems. Our findings provide guidelines for optimal soil domain size, mesh density, and boundary conditions. This investigation sets the stage for improved, computationally efficient techniques for the pile-soil impact problem, leading to better pile designs for vehicular impacts.
Keywords
dynamic pile-soil interaction; numerical modeling; crash test simulation; granular soil; vehicle barrier systems; lateral impacts; large soil deformation
Subject
Engineering, Civil Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
