3D dynamic modelling of soil-excavation tool interaction

Hibat Rahmane Bakhouche , Mohammed Salah Aggoune , Belkacem Meddour , Hamma Zedira

Abstract

This work studies a three-dimensional dynamic modelling of soil-tool interaction by using empirical parameters with Abaqus Explicit and investigates the influence of rake angle and depth of the excavator bucket tooth on reaction force, soil failure and displacements. The Modified Mohr Coulomb (MMC) model is applied to characterize the behavior of the simulated silty clay under unidirectional loading during the soil-tool interface process, the tool is treated as a rigid body with a reference point. In the first section of this article, we worked at a constant depth of 100 mm and velocity of 100 mm.s−1 to evaluated the influence of rake angle ranging from 30◦ to 90◦ with a 15◦ step on reaction forces during and after soil cutting. The second section discusses the impact of excavation depth when the rake angle of the tooth being analyse is fixed at 45◦. It was found that the reaction forces increase when the depth increases. However, this increase reaches a peak, and then abruptly decreases over a certain displacement. The excavation depth has a greater effect on the reaction force if it is greater than 100 mm. Results showed that working with small tool depth and average angles (30◦ to 60◦) can produce lower reaction forces and good soil displacement.

Key Words

bucket tooth; FEM; interaction; soil modelling

Address

Hibat Rahmane Bakhouche — Department of Mechanical Engineering, University of Abbas Laghrour, Laboratory of Structures, Atomic Interatomic Properties and Interactions (LASPI2A), Khenchela, Algeria
Mohammed Salah Aggoune — Department of Mechanical Engineering, Echahid Cheikh Larbi Tebessi University, Tebessa, Algeria
Belkacem Meddour — Department of Mechanical Engineering, University of Abbas Laghrour, Laboratory of Advanced Materials Science and Engineering (ISMA), Khenchela, Algeria
Hamma Zedira — Department of Civil Engineering, University of Abbas Laghrour, Atomic Interatomic Properties and Interactions (LASPI2A), Khenchela, Algeria

PDF Viewer

Preview is limited to the first 3 pages. Sign in to access the full PDF.

← Back to Volume 44, No. 5