Specifications

University of Technology, Xi'an 710048, China
Corresponding author: Yang, H. ([e-mail])
Source title: Jixie Gongcheng Xuebao/Journal of Mechanical Engineering
Abbreviated source title: Jixie Gongcheng Xuebao
Volume: 49
Issue: 1
Issue date: 2013
Publication year: 2013
Pages: 102-107
Language: Chinese
ISSN: 05776686
CODEN: CHHKA2
Document type: Journal article (JA)
Publisher: Editorial Office of Chinese Journal of Mechanical, 22 Baiwanzhuang Dajie, Beijing,
100037, China
Abstract: Rough surface asperity parameters are characterized based on fractal geometry
theory. Asperity normal contact stiffness model is developed based on contact mechanics that
the deformation transitions from elastic, through elastic-plastic, to eventually to the plastic,
respectively. The mechanical joints normal contact stiffness calculation model is presented based
on fractal geometry and contact mechanics theory. In different plastic index, the model is
developed the relationship between the joint normal contact load and contact stiffness. The
result shows that plastic index is lesser, asperity is mainly elastic deformation, and the
relationship between normal contact load and stiffness is the approximate linear, that, with the
plastic index increase, asperity is mainly plastic deformation, and the relationship between
normal contact load and stiffness is the strongly nonlinear. At last, normal contact stiffness which
machining surface are milling and grinding are calculated and analyzed for existed experimental
parameters used the model. The comparison result indicates that the present model is consistent
with experiment result. ©2013 Journal of Mechanical Engineering.
Number of references: 21
Main heading: Geomechanics
Controlled terms: Deformation - Elastoplasticity - Fractals - Grinding (machining) -
Stiffness
Uncontrolled terms: Asperity - Calculation models - Comparison result - Contact
Mechanics - Contact stiffness - Contact theory - Elastic-Plastic - Experimental
parameters - Fractal geometry - Fractal geometry theories - Machining surfaces -
Mechanical joints - Normal contact stiffness - Normal contacts - Rough surfaces -
Strongly nonlinear
Classification code: 421 Strength of Building Materials; Mechanical Properties - 422
Strength of Building Materials; Test Equipment and Methods - 481 Geology and Geophysics
- 606.2 Abrasive Devices and Processes - 921 Mathematics - 951 Materials Science
DOI: 10.3901/JME.2013.01.102
Database: Compendex
Compilation and indexing terms, © 2013 Elsevier Inc.
17.