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Title: An elastoplastic finite element study of cylindrical plane-strain contact for steel/steel and Inconel 617/Incoloy 800H undergoing unidirectional sliding

Abstract

The current work employs a two-dimensional plane strain finite element analysis to investigate the unidirectional sliding contact between a deformable half-cylinder and a deformable flat block. The unidirectional sliding is governed by a displacement-controlled action where the materials of the two contacting bodies are first set to identical steels at 20 ℃ and then to Inconel 617 and Incoloy 800H at 800 ℃. First, a normal interference (indentation) is applied, which is followed by unidirectional sliding. The von Mises stress distribution, plastic strain distribution, junction growth, normal force, tangential force, effective coefficient of friction, and scars on the surface of the block are obtained during the sliding motion. The leading edge of the contacting area and the bulk material under the leading edge experience large von Mises stresses. The large plastic strain is found on the surface of the block, and forms a “pocket” shape under the surface. The junction growth is also investigated, showing the direction of the growth is in the same direction of the tangential force that the weaker material experiences. The forces and the effective coefficient of friction are found to stabilize after a certain sliding distance, and the effective coefficient of friction converges to the coefficient ofmore » friction used in the model. Pileup is found on the surface of the block after a sufficient unidirectional sliding distance.« less

Authors:
 [1];  [1]
  1. School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, USA
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1526646
Grant/Contract Number:  
2506U87, Award RH452
Resource Type:
Published Article
Journal Name:
Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology
Additional Journal Information:
Journal Name: Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology Journal Volume: 234 Journal Issue: 1; Journal ID: ISSN 1350-6501
Publisher:
SAGE Publications
Country of Publication:
Country unknown/Code not available
Language:
English

Citation Formats

Yang, Huaidong, and Green, Itzhak. An elastoplastic finite element study of cylindrical plane-strain contact for steel/steel and Inconel 617/Incoloy 800H undergoing unidirectional sliding. Country unknown/Code not available: N. p., 2019. Web. doi:10.1177/1350650119855594.
Yang, Huaidong, & Green, Itzhak. An elastoplastic finite element study of cylindrical plane-strain contact for steel/steel and Inconel 617/Incoloy 800H undergoing unidirectional sliding. Country unknown/Code not available. doi:10.1177/1350650119855594.
Yang, Huaidong, and Green, Itzhak. Fri . "An elastoplastic finite element study of cylindrical plane-strain contact for steel/steel and Inconel 617/Incoloy 800H undergoing unidirectional sliding". Country unknown/Code not available. doi:10.1177/1350650119855594.
@article{osti_1526646,
title = {An elastoplastic finite element study of cylindrical plane-strain contact for steel/steel and Inconel 617/Incoloy 800H undergoing unidirectional sliding},
author = {Yang, Huaidong and Green, Itzhak},
abstractNote = {The current work employs a two-dimensional plane strain finite element analysis to investigate the unidirectional sliding contact between a deformable half-cylinder and a deformable flat block. The unidirectional sliding is governed by a displacement-controlled action where the materials of the two contacting bodies are first set to identical steels at 20 ℃ and then to Inconel 617 and Incoloy 800H at 800 ℃. First, a normal interference (indentation) is applied, which is followed by unidirectional sliding. The von Mises stress distribution, plastic strain distribution, junction growth, normal force, tangential force, effective coefficient of friction, and scars on the surface of the block are obtained during the sliding motion. The leading edge of the contacting area and the bulk material under the leading edge experience large von Mises stresses. The large plastic strain is found on the surface of the block, and forms a “pocket” shape under the surface. The junction growth is also investigated, showing the direction of the growth is in the same direction of the tangential force that the weaker material experiences. The forces and the effective coefficient of friction are found to stabilize after a certain sliding distance, and the effective coefficient of friction converges to the coefficient of friction used in the model. Pileup is found on the surface of the block after a sufficient unidirectional sliding distance.},
doi = {10.1177/1350650119855594},
journal = {Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology},
number = 1,
volume = 234,
place = {Country unknown/Code not available},
year = {2019},
month = {6}
}

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