3D Dynamic analysis of soil-tool interation using the finite element method

Mootaz Abo-Elnor, R. Hamilton, James Boyle

Research output: Contribution to journalArticle

56 Citations (Scopus)

Abstract

Previous experimental and finite element studies have shown the influence of both soil initial conditions and blade operating conditions on cutting forces. However, most of these finite element analyses (FEA) are limited to small blade displacements to reduce element distortion which can cause solution convergence problems. In this study a dynamic three-dimensional FEA of soil-tool interaction was carried out based on predefined failure surfaces to investigate the effect of cutting speed and angle on cutting forces over large blade displacements. Sandy soil was considered in this study and modeled using the hypoplastic constitutive model implemented in the commercial FEA package, ABAQUS. Results reveal the validity of the concept of predefined failure surfaces in simulating soil-tool interaction and the significant effect of cutting acceleration on cutting forces.
Original languageEnglish
Pages (from-to)51-62
Number of pages11
JournalJournal of Terramechanics
Volume40
Issue number1
DOIs
Publication statusPublished - Jan 2003

Keywords

  • dynamic soil-tool interaction
  • hypoplasticity
  • sand modeling

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