Specifications

further development of an irrigation system application mode in the direction of more
intelligence and more automation.
Number of references: 29
Main heading: Irrigation
Controlled terms: Crops - Flow rate - Intelligent control - Soil moisture - Soils -
Water supply
Uncontrolled terms: Automatic adjustment - Coefficient of uniformity - Drip irrigation
- Hydraulic performance - Hydraulic performance experiments - Precision irrigation -
Soil moisture monitoring - Soil moisture status
Classification code: 446.1 Water Supply Systems - 483.1 Soils and Soil Mechanics - 631
Fluid Flow - 731.1 Control Systems - 821.3 Agricultural Methods - 821.4 Agricultural
Products
DOI: 10.3969/j.issn.1002-6819.2013.04.011
Database: Compendex
Compilation and indexing terms, © 2013 Elsevier Inc.
4.
Accession number: 20131416157701
Title: Elasto-plastic indentation of a half-space by a rigid sphere under normal and torque
loading
Authors: Li, Pengyang1, 2 ; Wang, Zhanjiang2, 3 ; Li, Xiaoyong3 ; Jin, Xiaoqing2 ; Chen, W.
Wayne2 ; Li, Yan1 ; Wang, Q. Jane2/李鹏阳;王战江;;;;李言;
Author affiliation: 1 Department of Mechanical Engineering and Automation, Xi'An University
of Technology, Xi'an, 710048, China
2 Department of Mechanical Engineering, Northwestern University, Evanston, IL 60208, United
States
3 State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing, 400030,
China
Corresponding author: Li, P. ([e-mail])
Source title: Tribology International
Abbreviated source title: Tribol Int
Volume: 62
Issue date: 2013
Publication year: 2013
Pages: 141-148
Language: English
ISSN: 0301679X
CODEN: TRBIBK
Document type: Journal article (JA)
Publisher: Elsevier Ltd, Langford Lane, Kidlington, Oxford, OX5 1GB, United Kingdom
Abstract: This work presents a numerical study of a spinning rigid sphere pressed against an
elasto-plastic half space under combined normal and torque loading. The von Mises stresses and
equivalent plastic strain under different torques are investigated. Results show that the torque
shifts the maximum von Mises stress and plastic region in the half space closer to the surface at
larger friction coefficient. An empirical formula to predict the contact area is suggested. The