Elasto-plastic contact of materials containing double-layered inhomogeneities

Modeling and simulation in tribology across scales: An overview

“…Remaining in the realm of smooth contact problems, but moving away from the Hertzian theory of elastic contacting bodies and its limitations (only accurate for small contact areas when compared to all other length scales), progress has been made in a number of other areas: these include, for example, layered and coated systems, also in the presence of anisotropic and functionally graded materials [52][53][54][55][56][57][58][59][60], contacts in the presence of sharp edges [61][62][63][64] and conformal configurations [65]. Other examples of recent developments in the field are the use of asymptotic analyses to study the stress fields and sliding behavior associated with different contact configurations [66][67][68][69], the study of contact in the presence of anisotropic and functionally graded materials, and varying friction coefficient along the interface in sliding and partial slip conditions [70].…”

Rethinking How External Pressure Can Suppress Dendrites in Lithium Metal Batteries

“…Contact interfaces involving rough surfaces can be modeled by using semi-analytical methods (SAMs) built on core analytical solutions and supported by efficient numerical approaches, including the conjugate gradient method (CGM) [40] and the fast Fourier transform (FFT) method [41,42]. SAMs have been used for solving numerous contact problems, such as magnetoelectroelastic contacts [43][44][45], elastoplastic contacts [46][47][48][49], and contact involving rough surfaces [50][51][52][53]. Derivation of the core analytical solutions, in terms of displacements and stresses, is essential for developing a contact model and simulating the surface interactions in such structures.…”

Numerical methods for solving the equivalent inclusion equation in semi-analytical models

“…In recent years, several groups have reported SAMs capable of handling problems involving coupled stress fields in inhomogeneous materials and beyond in the tribology fields. For example, Amuzuga et al 16 and Zhang et al 17 used an elastoplastic contact model to investigate the effect of inhomogeneities on the distributions of plastic strain and residual stress; Wang et al 18 and Dong et al 19 modeled inhomogeneities in partial slip contacts; Wang et al 20 studied the elastohydrodynamic lubrication of inhomogeneous materials; Dong et al 21,22 investigated the contact behaviors of multilayered structures; thermal effects are involved in the contact model of inhomogeneous materials proposed by Yang et al 23 ; creep contact can also be investigated by using the SAM. 24 As mentioned above, the EIM is utilized for tackling the inhomogeneity problem in SAMs.…”