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Open AccessArticle

Numerical Modeling of the Effect of Randomly Distributed Inclusions on Fretting Fatigue-Induced Stress in Metals

1
Department of Mechanics and Engineering Science, Nanjing University of Science and Technology, Nanjing 210094, China
2
Department of Electrical energy, Metals, Mechanical Constructions, and Systems, Faculty of Engineering and Architecture, Ghent University, 9052 Zwijnaarde, Belgium
3
Institute of Research and Development, Duy Tan University, 03 Quang Trung, Da Nang, Vietnam
4
Soete Laboratory, Faculty of Engineering and Architecture, Ghent University, Technologiepark Zwijnaarde 903, B-9052 Zwijnaarde, Belgium
*
Author to whom correspondence should be addressed.
Metals 2018, 8(10), 836; https://doi.org/10.3390/met8100836
Received: 10 September 2018 / Revised: 12 October 2018 / Accepted: 15 October 2018 / Published: 17 October 2018
(This article belongs to the Special Issue Recent Advances on Fretting Fatigue)
The analysis of fretting fatigue plays an important role in many engineering fields. The presence of heterogeneity may affect the performance of a machine or a structure, including its lifetime and stability. In this paper, the effect of randomly distributed micro inclusions on the fretting fatigue behaviour of heterogeneous materials is analysed using the finite element method (FEM) for different sizes, shape and properties of inclusions. The effect of micro inclusions on macroscopic material properties is also considered by representative volume element (RVE). It is shown that the influence of micro inclusions on macroscopic material properties cannot be ignored, and the shape and size of the inclusions have less effect on the macroscopic material properties as compared to the material properties of inclusion and volume ratio. In addition, various parameters of inclusions have little effect on the peak tensile stress, which remains almost the same as homogeneous material. Peak shear stress occurs at many places inside the specimen, which can result in multiple cracking points inside the specimen, as well as at the contact surface. Moreover, the stress band formed by the stress coupling between adjacent inclusions may have an important influence on the direction of crack growth. View Full-Text
Keywords: fretting fatigue; heterogeneous material; finite element method; inclusions fretting fatigue; heterogeneous material; finite element method; inclusions
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MDPI and ACS Style

Deng, Q.; Bhatti, N.; Yin, X.; Abdel Wahab, M. Numerical Modeling of the Effect of Randomly Distributed Inclusions on Fretting Fatigue-Induced Stress in Metals. Metals 2018, 8, 836.

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