Shakedown limits for an oscillating, elastic rolling contact with Coulomb friction

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES

卷:51

Article

Wetter, R.¹  Popov, V. L.¹ 

[1] Tech Univ Berlin, Inst Mech, Dept Syst Dynam & Frict Phys, D-10623 Berlin, Germany

关键词: Oscillating rolling contact;    Coulomb friction;    Shakedown;    Micro-slip;    Ratcheting;    Method of dimensionality reduction;   

DOI  :  10.1016/j.ijsolstr.2013.11.026

来源: Elsevier

【 摘 要 】

We examine experimentally and theoretically the effect of frictional shakedown of a three-dimensional elastic rolling contact. Small oscillations of the local normal forces lead to incremental sliding processes within the area of contact. Consequently, this causes a macroscopic slip motion of the two contacting bodies. If the oscillation amplitude is sufficiently small, the frictional slip ceases after the first few loading periods and a safe shakedown occurs. Otherwise the slip motion is continued and the contact fails. Using the method of dimensionality reduction, we derive analytical shakedown limits on the parameter plane tangential loading-oscillation amplitude and compare them to results of numerical simulations with Kalker's program CONTACT. Both models show very good agreement with experimental data and allow an accurate prediction of the shakedown displacement and the maximum tangential load capacity in the shakedown state. (C) 2013 Elsevier Ltd. All rights reserved.

【 授权许可】

Free