Transformation of sliding motion to rolling during spheres collision

Pishkenari, Hossein Nejat; Rad, Hossein Kaviani; Shad, Hamed Jafari

doi:10.1007/s10035-017-0755-0

Cited by 7 publications

(1 citation statement)

References 32 publications

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“…An equivalent but computationally simpler formulation of the MBF solution within the framework of the method of dimensionality reduction [16] was published recently [17]. Moreover, there are several rigid-body models of oblique impacts [18,19]. However, as there are only two regimes of contact in rigid-body dynamicsstick and gross slidingthese models are necessarily wrong in the partial slip regime.…”

Section: Introductionmentioning

confidence: 99%

Energy Loss and Wear in Spherical Oblique Elastic Impacts

Willert

2019

FU Mech Eng

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Percussive and erosive wear by repetitive impacting of solid particles damages surfaces even at low impact velocities. As the impact wear is often directly related to the energy loss during the collision and therefore to the coefficients of normal and tangential restitution, in the present study the oblique low-velocity impact of a rigid sphere onto an elastic half-space is analyzed based on the known respective contact-impact solution and with regard to the energy loss during the impact. Simple analytic expressions are derived for the total impact wear volume. It is found that the portion of kinetic energy lost in frictional dissipation has a well-located maximum for configurations with weak forward pre-spin. The distribution of frictional dissipation over the contact area has a complex dependence on the impact parameters. For pronounced local slip (e.g. due to a small coefficient of friction) the dissipation accumulated over the collision is localized in the center of impact whereas for dominance of sticking, most energy is lost away from the center.

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Section: Introductionmentioning

confidence: 99%

Energy Loss and Wear in Spherical Oblique Elastic Impacts

Willert

2019

FU Mech Eng

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Quasistatische ebene Stöße von Kugeln

Willert

2020

Stoßprobleme in Physik, Technik Und Medizin

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Nach der Behandlung des reinen Normalstoßproblems ist das folgende Kapitel dem allgemeinen Stoßproblem von Kugeln gewidmet. Im Rahmen der im zweiten und dritten Kapitel beschriebenen Annahmen ist diese Aufgabe äquivalent zu dem ebenen Stoß einer starren Kugel auf einen deformierbaren Halbraum (siehe Abb. 2.2). Unabhängig von der konkreten kontaktmechanischen Wechselwirkung ist die tangentiale Bewegungsgleichung wegen

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Frictional viscoelastic based model for spherical particles collision

Rad

Pishkenari

2018

Granular Matter

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Transformation of sliding motion to rolling during spheres collision

Cited by 7 publications

References 32 publications

Energy Loss and Wear in Spherical Oblique Elastic Impacts

Energy Loss and Wear in Spherical Oblique Elastic Impacts

Quasistatische ebene Stöße von Kugeln

Frictional viscoelastic based model for spherical particles collision

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