A Tribological Model for Continuous Casting Equipment of the Steel
Journal Title: Analele Universitatii "Dunarea de Jos" din Galati. Fascicula IX, Metalurgie si Stiinta Materialelor - Year 2011, Vol 34, Issue 4
Abstract
This paper presents a coupled thermo-elastic contact problem with tribological processes on the contact interface (friction, wear or damage). The unilateral contact between the cilindrical roll system and a deformable foundation (slab, bloom, etc) is modeled by the Kuhn-Tucker (normal compliance) conditions, involving damage and/or wear effect of contact surfaces. The continuum tribological model is based on gradient theory of the damage variable for studying crack initiation in fretting fatigue [11], [14], [15] , and the wear is described by Archard’s law. The friction law that we consider is a regularization of the Coulomb law. The weak formulation of the quasistatic boundary value problem is described by using the variational principle of virtual power, the principles of thermodynamics and variational inequalities theory. Thus, the main results of existence for weak solution are established using a discretization method (FEM) and a fixed-point strategy [5].
Authors and Affiliations
Viorel MUNTEANU, Constantin BENDREA
Keywords
Related Articles
- EP ID EP625664
- DOI -
- Views 81
- Downloads 0
The Use of Magnetic Nanomaterials for the Retaining of Cu(II) Ions out of Residual Water
In the developed countries the removal of hard materials from residual waters using advanced technologies such as ionic change, precipitation, ultrafiltration or electrochemical deposits seems inconvenient from the econo...
Recycling of Integrated Steel Plant Solid Wastes in the Sintering Process and Corresponding Effects on Pollutant Emissions
The new practices in sintering technology allows for the use of a wide range of iron-containing materials in charge with obtaining the agglomerate with necessary characteristics for optimal operation of the blast furnace...
Effects Exerted by Slag Carried over From Converter in the Ladle on the Aluminum Assimilation
In the present paper are shown aspects of the influence exerted by the some less controlled parameters of BOF steelmaking, mainly of slag characteristics at tapping. Following the necessities to control the steel deoxidi...
Granularly Unbind Materials for Casting Composite Moulds
This paper present some partial result based on this idea (of pollution prevention) the domain of making composite-casting moulds (in time of casting, solidifying, and alloy cooling). Casting process impose temporary or...
Dioxins and Furans as Pollutant Emissions From Integrated Steel Works
In the metallurgical industry are several sources for pollutant emissions but the main source is the sintering process. In this paper are analyzed the generation process of persistent organic pollutant emissions (dioxins...