The present paper proposes to analyze relations between the behavior of two bodies in contact (local stress and vibration modes) and the rheology of third-body particles. Experiments are performed on a system composed of a polycarbonate disk in contact with a steel cylinder, where birefringent property of polycarbonate allows us to observe shear-stress isovalues. Multiscale numerical simulations involve the coupling between finite elements and discrete elements to model simultaneously nonhomogeneous third-body flows within a confined contact and dynamical behavior of the bodies in contact. Comparisons between experiments and simulations are performed on the dynamic response of the system, the stress distribution, as well as the evolution of third-body particles within the contact. Such comparisons exhibit not only qualitative results but also quantitative ones and suggest a new approach to study in deeper third-body rheology.
First-Body Versus Third-Body: Dialogue Between an Experiment and a Combined Discrete and Finite Element Approach
Contributed by the Tribology Division of ASME for publication in the JOURNAL OF TRIBOLOGY. Manuscript received June 25, 2013; final manuscript received November 14, 2013; published online February 19, 2014. Assoc. Editor: Prof. C. Fred Higgs III.
Renouf, M., Nhu, V., Saulot, A., and Massi, F. (February 19, 2014). "First-Body Versus Third-Body: Dialogue Between an Experiment and a Combined Discrete and Finite Element Approach." ASME. J. Tribol. April 2014; 136(2): 021104. https://doi.org/10.1115/1.4026062
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