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

Mootaz Abo-Elnor; R. Hamilton; James Boyle

doi:10.1016/j.jterra.2003.09.002

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

Mootaz Abo-Elnor, R. Hamilton, James Boyle

Mechanical And Aerospace Engineering

Research output: Contribution to journal › Article › peer-review

76 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 language	English
Pages (from-to)	51-62
Number of pages	11
Journal	Journal of Terramechanics
Volume	40
Issue number	1
DOIs	https://doi.org/10.1016/j.jterra.2003.09.002
Publication status	Published - Jan 2003

Keywords

dynamic soil-tool interaction
hypoplasticity
sand modeling

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10.1016/j.jterra.2003.09.002

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title = "3D Dynamic analysis of soil-tool interation using the finite element method",

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.",

keywords = "dynamic soil-tool interaction, hypoplasticity, sand modeling",

author = "Mootaz Abo-Elnor and R. Hamilton and James Boyle",

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AU - Abo-Elnor, Mootaz

AU - Hamilton, R.

AU - Boyle, James

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Y1 - 2003/1

N2 - 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.

AB - 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.

KW - dynamic soil-tool interaction

KW - hypoplasticity

KW - sand modeling

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DO - 10.1016/j.jterra.2003.09.002

M3 - Article

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EP - 62

JO - Journal of Terramechanics

JF - Journal of Terramechanics

IS - 1

ER -

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

Abstract

Keywords

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