Finite element analysis of an elastic-plastic two-layer half-space: sliding contact

Subsurface deformation and the role of surface texture—A study with Cu pins and steel plates

“…Johnson & Jefferis (1963) found that yielding initiates in the subsurface region when the friction coefficient, μ, is small (μ < 0.25 for the Tresca criterion and μ < 0.3 for the Mises criterion), and on the contact surface when it is larger than 0.25 for Tresca and 0.3 for Mises criteria. Tian & Saka (1991), using FE method, made a similar observation.…”

“…Tian & Saka (1991) studied the two-dimensional stress and strain analysis during sliding and concluded that normal stresses and strains along the interfaces are not greatly affected by friction while horizontal shear stresses and strains are strongly influenced by the friction coefficient. It has been found that the effect of tangential force is to bring the point of maximum shear stress closer to the surface.…”

Fundamental formulation for frictional contact problems of coated systems

“…Below, we present some frequently encountered cases. Some of them correspond to practical contact situations studied by other models and methods, such as the FEM (Tian and Saka, 1991;Anderson and Collins, 1995), BIM (Gupta and Walowit, 1974;Elsharkawy, 1999) and a hybrid method (Bentall and Johnson, 1986;Nowell and Hills, 1988).…”

“…One is the finite element method (FEM), employed by many researchers (Ihara et al, 1986a,b;Komovopoulus, 1988;Tian and Saka, 1991;Anderson and Collins, 1995;Lovell, 1998;Aslantas and Tasgetiren, 2002;and others). The other method is the boundary integral method (BIM), also widely investigated and used for this type of problems (e.g.…”

A Finite Element Approach to Modeling Abrasive Wear Modes

“…Under low loads and with rather blunt particles, the main abrasive regime is ploughing or rubbing and a scratch is formed due to plastic deformation of the material. Most numerical models that describe scratching interaction (see, e.g., Fang,et al (14); Tian and Saka (17)) are limited to describing this regime, utilizing an elastic-plastic stress-strain relation to allow for plastic deformation without actual material removal taking place. Under more severe conditions and with sharper abrasive particles, actual material removal occurs and the contact operates in either the wedge formation or the cutting regime.…”