منابع مشابه
Single State Elasto-Plastic Models for Friction Compensation
For control applications involving small displacements and velocities, friction modeling and compensation can be very important. In particular, the phenomena of stiction and presliding displacement (motion during sticking) can play pivotal roles. In this paper, it is shown that existing single-state-variable friction models possess either stiction or presliding displacement. Next, those models ...
متن کاملElasto-Plastic Friction Model: Contact Compliance and Stiction
The presliding displacement and stiction properties of friction models are investigated. It is found that existing single-state-variable friction models possess either stiction or presliding displacement. Next, those models with continuous states are interpreted as examples of Prandlt’s elasto-plastic material model. A class of general one-state models is derived that is stable, dissipative and...
متن کاملEffects of mechanical properties and surface friction on elasto-plastic sliding contact
Indentation hardness has been used extensively for material characterization and many recent computational studies have established quantitative relationships between elasto-plastic mechanical properties and the response in instrumented indentation. In contrast, very few studies have systematically quantified the effect of the plastic deformation characteristics on the frictional sliding respon...
متن کاملResearch on Elasto-plastic Contact with Friction Multipole BEM and Rolling Process
It is a highly nonlinear problem of 3-D elastoplastic contact with friction. To obtain the key information about the real size, displacement and traction in contact zone, the elements in contact and plastic zone should be subdivided. However, the increase of degrees of freedom is limited by the problem-solving scale when traditional BEM is used, for a larger memory size is required and the solu...
متن کاملA Finite Element Study of Elasto-plastic Hemispherical Contact
This work presents a finite element study of elasto-plastic hemispherical contact. The results are normalized such that they are valid for macro contacts (e.g., rolling element bearings) and micro contacts (e.g., asperity contact). The material is modeled as elastic-perfectly plastic. The numerical results are compared to other existing models of spherical contact, including the fully plastic c...
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ژورنال
عنوان ژورنال: Wear
سال: 1999
ISSN: 0043-1648
DOI: 10.1016/s0043-1648(99)00099-x