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Research Papers: Friction and Wear

A Finite Element Approach by Contact Transformation for the Prediction of Structural Wear

[+] Author and Article Information
James Shih-Shyn Wu

Institute of Mechanical Engineering,
National Chung-Hsing University,
Taichung, Taiwan 402, China
e-mail: sswu@dragon.nchu.edu.tw

Yi-Tsung Lin

Institute of Mechanical Engineering,
National Chung-Hsing University,
Taichung, Taiwan 402, China
e-mail: ytlin721@gmail.com

Yuan-Lung Lai

Department of Industrial Education
and Technology,
National Changhua University of Education,
Changhua, Taiwan 500, China
e-mail: lyllaiber@cc.ncue.edu.tw

P.-Y. Ben Jar

Department of Mechanical Engineering,
University of Alberta,
Edmonton, AB T6G 1H9, Canada
e-mail: ben.jar@ualberta.ca

1Corresponding author.

Contributed by the Tribology Division of ASME for publication in the JOURNAL OF TRIBOLOGY. Manuscript received August 31, 2015; final manuscript received February 17, 2016; published online August 11, 2016. Assoc. Editor: Sinan Muftu.

J. Tribol 139(2), 021602 (Aug 11, 2016) (9 pages) Paper No: TRIB-15-1322; doi: 10.1115/1.4033129 History: Received August 31, 2015; Revised February 17, 2016

Understanding of the wear behaviors between mechanical components is a significant task in engineering design. Finite element (FE) simulation may offer valuable wear information. However, longer computational time, poor data precision, and possible divergence of results are unavoidable in repetitive procedures, especially for large FE structures. To address these issues, the current method proposes a hypothesis that the strain energy is completely transferred through the contact regions of components; further that only variables on the contact surface are involved in the solution procedure. Our qualitative comparison demonstrates that the formulations in the current study are valid, offering significant implications for further application.

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References

Figures

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Fig. 1

Schematic figure of Gaussian contact area connecting node j

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Fig. 2

Schematic depiction of contact status between two structural components

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Fig. 3

(a) Wear model of pin-on-plate by Stemp et al. [40] and (b) the FE model

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Fig. 4

Progress of wear depth for the cases in the FE simulation in this study

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Fig. 5

The runtime ratios Φ for case 5 in the pin-on-plate problem

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Fig. 6

Geometry of the cylinder liner-piston ring: top and side views [42]

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Fig. 7

FE model of the piston ring and cylinder liner

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Fig. 8

Distribution of wear depth in the piston ring and the cylinder liner

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Fig. 9

FE model of hip joint and loads with 16 stages in a gait cycle

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Fig. 10

Depth contour of wear (mm) on the acetabular cup (current method)

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