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RISClosure to “Discussion of ‘Tangential Loading of General Three-Dimensional Contacts’” (1999, ASME J. Appl. Mech., 66, pp. 1048)
Publisher: The American Society of Mechanical Engineers (ASME)
On Pastewka and Robbins' Criterion for Macroscopic Adhesion of Rough Surfaces
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Pastewka and Robbins (2014, “Contact Between Rough Surfaces and a Criterion for Macroscopic Adhesion,” Proc. Natl. Acad. Sci., 111(9), pp. 3298–3303) recently have proposed a criterion to distinguish when two surfaces will ...
On the Significance of Asperity Models Predictions of Rough Contact With Respect to Recent Alternative Theories
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Recently, it has been shown that while asperity models show correctly qualitative features of rough contact problems (linearity in area–load, negative exponential dependence of load on separation which means also linearity ...
Tangential Loading of General Three-Dimensional Contacts
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A general three-dimensional contact, between elastically similar half-spaces, is considered. With a fixed normal load, we consider a pure relative tangential translation between the two bodies. ...
A Simplified Version of Persson's Multiscale Theory for Rubber Friction Due to Viscoelastic Losses
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: We show that the full multiscale Persson's theory for rubber friction due to viscoelastic losses can be approximated extremely closely to simpler models, like that suggested by Persson in 1998 and similarly by Popov in his ...
Discussion: “The Effect of Anisotropy on the Percolation Threshold of Sealing Surfaces” (Yang, Z., Liu, J., Ding, X., and Zhang, F., 2019, ASME J. Tribol., 141(2), p. 022203)
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A recent paper by Yang et al. [1] shows interesting results on the percolation threshold, the ratio of real contact area to nominal contact area A/A0 when the first leak channel appears across a seal interface. Percolation ...
Can Wear Completely Suppress Thermoelastic Instabilities?
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Thermoelastic instabilities (TEI) occur in sliding bodies at sufficiently high speed because a small thermoelastic disturbance tends to localize the contact, leading to “hot spots.” The role that wear plays in TEI has been ...
On the Effect of Grading Elastic Modulus in Frictional Line Contacts
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: We study the effect of elastic material grading close to the surface in line contacts with friction on internal stresses, particularly to quantify the reduction of tensile principal stresses due to grading. We observe that ...
An Assessment of the Greenwood-Williamson and Other Asperities Models, With Special Reference to Electrical Conductance
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Although in principle simple and neat results are obtained with the classical Greenwood-Williamson (GW) model (linearity of real contact area and conductance with load), the definition of asperity ...
Elastic Multiscale Contact of Rough Surfaces: Archard’s Model Revisited and Comparisons With Modern Fractal Models
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Bowden and Tabor (1 BT, in the following) state that friction is dictated by “adhesion (cold weld)” and “ploughing (inelastic deformation term),” between asperities. Amonton’s law could easily ...