Contact around a Sharp Corner with Small Scale Plasticity
Advances in Materials
Volume 6, Issue 1-1, January 2017, Pages: 10-17
Received: Oct. 31, 2016; Accepted: Nov. 8, 2016; Published: Dec. 8, 2016
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Zupan Hu, Department of Mechanical Engineering, University of Michigan, Ann Arbor, USA; Stanley Black & Decker Inc, Towson, USA
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Owing to elastic singularity, the contact stress around a sharp corner is highly sensitive to the boundary conditions and local geometrical details. Determination of such stress is critical in predicting failures such as wear, fretting fatigue and crack initiation. In this paper, the stress around such corner is analyzed based on linear elasticity and small scale plasticity. The stress on the contact interface is generalized in a way that the results can be easily converted to represent another corner with different dimensions or boundary conditions. An example is presented to show the determination of the stress scale and the formulation of a generalized solution. It is shown that the generalized macro stress field away from the corner dominates the contact behaviors around the corner.
Partial Slip, Stress Singularity, Plastic Yielding
To cite this article
Zupan Hu, Contact around a Sharp Corner with Small Scale Plasticity, Advances in Materials. Special Issue: Advances in Multiscale Modeling Approach. Vol. 6, No. 1-1, 2017, pp. 10-17. doi: 10.11648/
Copyright © 2016 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License ( which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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