The effect of surface roughness characteristics on the elastic–plastic contact performance

Zhang, Shengguang; Wang, Wenzhong; Zhao, Ziqiang

doi:10.1016/j.triboint.2014.05.016

Cited by 45 publications

(22 citation statements)

References 40 publications

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“…The total stress is decomposed into two parts, an elastic part and a residual part. where, e ij  is the stress due to contact pressure which can be obtained by the product of pressure and its influence coefficient, according to Zhang et al [29]. However, the residual stress, p ij  was calculated using the method proposed by Liu et al [30].…”

Section: Model Validationmentioning

confidence: 99%

Investigation of the contact performance of machined surface morphology

Zhai

Huang

et al. 2017

Tribology International

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Engineering practices have indicated that surface textures and topography greatly affect the mechanical performance of contact interfaces. The effect of machined surface morphologies on the contact performance results, including average surface gap, contact area ratio, and the volume of plastically deformed material, is investigated. Depending on the machined parameters, the studied surfaces are generated using computer simulation. The elasto-plastic contact of rough surfaces is analyzed by means of semi-analytical method (SAM) and minimization of complementary energy. Results indicate that with increasing the interval of texture, average surface gap remains invariant while contact area ratio and the volume of plastically deformed material decreases.

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Section: Model Validationmentioning

confidence: 99%

Investigation of the contact performance of machined surface morphology

Zhai

Huang

et al. 2017

Tribology International

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“…The final item which must be included in the above-mentioned review of literature is the semi--analytical model of elastic-plastic contact. Zhang et al (2014) presented the impact of surface roughness on the effectiveness of the elastic-plastic area of contact. Additionally, similar works dealing with modeling of elasto-plastic surface contact with boundary roughness (Brzoza and Pauk, 2007) and (Buczkowski and Kleiber, 1992) contact problems connected with a nonlinear interface compliance can also be found in literature.…”

Section: Introductionmentioning

confidence: 99%

Numerical analysis of contact plastic bodies made by aluminium alloy with taking account of micro-roughness surfaces

Sidun

Piwnik

2019

Journal of Theoretical and Applied Mechanics

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The following article describes selected aspects of numerical modeling of the process of bonding metal alloys with consideration for micro-roughness. Plastic contact between two deformable bodies is studied within a DEFROM FEM environment. The paper presents selected numerical analysis results for an aluminum alloy. The mathematical model of surface roughness has been created on the basis of the surface real profile. The dependence between the tool lathe angle and the feed has been used to build a numerical model of roughness after completion of the turning process. The article investigates the impact of wave roughness in respect to the size effect and the possibility of cold welding as well as the simplification process of real surface roughness.

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“…It is also possible to find a lot about wear, tribological phenomena and friction models. One such example is the work of Zhang et al, which presents the impact of surface roughness on the effectiveness of the elastic-plastic area of a contact [5]. Dry elastic-plastic contact of nominally flat surfaces was studied by Manoylov et al [6] while friction analysis of microcosmic elastic-plastic contact for extrusion process was the theme of the work published by Wang et al [7] An excellent comparison of friction models occurring during metal forming processes was presented by Tan [3].…”

Section: Introductionmentioning

confidence: 99%

Experimental verification of a numerical surface roughness model for metallic bodies under large plastic strain

Sidun

2019

MATEC Web Conf.

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The present work describes selected aspects of numerical modelling of the process of bonding metal alloys with consideration for micro-roughness, as well as experimental verification. The plastic-elastic contact between two deformable bodies was investigated in a DEFROM FEM environment, and verified at the test stand. The present paper demonstrates selected results of contact modelling investigated using aluminium-copper samples, in relation to their elastic-plastic range. The real surface profile helped to create a mathematical model of surface roughness measured using a laser microscope. Dependency between a blade of a tool and a feed was used to build a numerical model of roughness based on the arithmetic average value of the roughness profile. The work presents also a process of simplification of real surface roughness for the needs of numerical calculations. The paper investigates an impact of wave roughness at obtained values on effective plastic strain and stress. Additionally, numerical analysis shows a need to enter a new roughness wave correction factor assuming a zero value of the coefficient of friction. This is due to the interaction of metallic surfaces within the plastic contact zone. The obtained results allow the estimation of the impact of surface force interaction expressed by the wave coefficient factor. The experimental verification of numerical calculations allowed the estimation of the actual impact of the micro-cutting process in the entire friction process. Further analysis of obtained results permits the author to explain the surface phenomena occurring during the friction process, such as adhesion or diffusion, and outline the development direction of numerical methods.

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The effect of surface roughness characteristics on the elastic–plastic contact performance

Cited by 45 publications

References 40 publications

Investigation of the contact performance of machined surface morphology

Investigation of the contact performance of machined surface morphology

Numerical analysis of contact plastic bodies made by aluminium alloy with taking account of micro-roughness surfaces

Experimental verification of a numerical surface roughness model for metallic bodies under large plastic strain

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