Research Article

A New Combined Model for considering the Plasticity Effects in Contacting Asperities

Table 1

Different important models in rough surfaces contact problem.

ModelKey characteristicsMain fields of application

GW model (Greenwood and Williamson)Considering the spherical asperitiesThe elastic contact based on Hertz theory

CEB model (Chang, Etsion, and Bogy)Considering plastic effectsThe elastic- and fully-plastic zones in rough surface contact

ZMC model (Zhao, Maietta, and Chang)Evaluating the deformation of asperitiesThe elastic-plastic contact in rough surfaces

KE model (Kogut and Etsion)FEM for elastic-plastic asperity deformationsThe elastic-plastic contact in rough surfaces (contact between asperity and a flat surface)

Etsion modelFE model to examine the dependence of load to deformation and forceThe elastic- and perfect-plastic contact in rough surfaces

JG model (Jackson and Green)Considering the effects of hardness using the FE methodThe elastic-plastic contact in rough surfaces (contact between asperity and a flat surface)

AF model (Abdo and Farhang)Considering shoulder-to-shoulder asperity contactThe elastic-plastic contact in rough surfaces

Gao model (Gao et al.)Considering the lateral contact, effects of adjacent asperities, and distribution of contact anglesThe elastic-plastic contact in rough surfaces

Present model or AT model (Amini and Tehrani)Considering the lateral contact, effects of adjacent asperities, distribution of contact angles, slip-stick effects, and multiasperities contactThe elastic-plastic contact in rough surfaces