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- Publications
- Influence
Soil-Machine Interactions: A Finite Element Perspective
- Jie Shen, R. L. Kushwaha
- Engineering
- 10 March 1998
Basic procedures in a finite element analysis constitutive models for agricultural soils simulation of soil-metal interfaces algorithms in static, dynamic, linear and non-linear finite element… Expand
Dynamic modeling of soil–tool interaction: An overview from a fluid flow perspective
- S. Karmakar, R. L. Kushwaha
- Engineering
- 1 October 2006
Abstract The study of tillage tool interaction centers on soil failure patterns and development of force prediction models for design optimization. The force-deformation relationships used in models… Expand
SHEAR STRENGTH OF WHEAT STRAW
- R. L. Kushwaha, A. Vaishnav, G. C. Zoerb
- 2011
INTRODUCTION Minimum and zero tillage practices are being adopted by farmers in the Prairie region of Canada. The main problem as sociated with proper seed placement under these tillage practices is… Expand
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A modified model to predict soil cutting resistance
- J. Zhang, R. L. Kushwaha
- Environmental Science
- 1 June 1995
Abstract A modified three-dimensional model to determine soil resistance has been established from the McKyes-Ali model. The model is based upon minimizing the total soil resistance to determine the… Expand
A non-linear 3-D finite element analysis of soil failure with tillage tools
- L. Chi, R. L. Kushwaha
- Engineering
- 1990
Abstract A non-linear 3-D finite element model was developed to study the soil failure under a narrow tillage blade. The weighted residual method was applied to formulate the finite element model.… Expand
Numerical modelling of soil stress and pressure distribution on a flat tillage tool using computational fluid dynamics
- S. Karmakar, R. L. Kushwaha, C. Laguë
- Engineering
- 1 July 2007
Soil pressure on tillage tools and its distribution over the tool surface are important factors for tool design with respect to tool wear. Soil stresses due to the tool motion are also very important… Expand
Quick finite element analysis of soil tool interactions
- Jie Shen, R. L. Kushwaha
- Engineering
- 1 December 1993
Abstract The calculating speed of a finite element analysis of soil tool interactions is an important key factor to determine whether the method will be accepted by the designers or not. Several… Expand
Effect of tillage speed and straw length on soil and straw movement by a sweep
- J. Liu, Ying Chen, R. L. Kushwaha
- Environmental Science
- 1 July 2010
Abstract Crop residue cover protects soil from erosion caused by water and wind. High amounts of residue are not needed and part of crop residue needs to be removed by bailing and part of the crop… Expand
Draft-speed relationship of simple tillage tools at high operating speeds
- R. L. Kushwaha
- Environmental Science
- 15 November 1996
Abstract Field experiments were conducted with five different blades operated vertically in sandy loam and clay soil types up to a speed of 18 m s −1 to determine the draft-speed relationships at… Expand
SIMULATION OF SOIL DEFORMATION AROUND A TILLAGE TOOL USING COMPUTATIONAL FLUID DYNAMICS
- S. Karmakar, R. L. Kushwaha
- Engineering
- 2005
Tillage tool modeling is primarily concerned with analysis of soil deformation patterns and development of force
prediction models. During the last four decades, most of the studies conducted on… Expand
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