A Finite Element Study of Elasto-Plastic Hemispherical Contact Against a Rigid Flat

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Asperity micro-contact models as applied to the deformation of rough line contact (2012, methodology): “More recent investigations involve the use of the finite element analysis as reported by Kogut and Etsion [9,10] and Jackson and Green [11,12].”
A Review of Elastic–Plastic Contact Mechanics (2017, methodology): “With the development of the ﬁnite element method and access to computational resources, modeling capabilities were advanced by many researchers, including Li and Thorn-ton [44], Wu et al. [45], Kogut and Etsion [93], and Jackson and Green [52].”
Unloading of an elastic-plastic spherical contact under stick contact condition (2010, background): “It should be noted here that the behavior discussed above can be maintained only as long as the contact region is predominantly elastic namely, below a certain maximum normal loading (see Jackson et al. (2005b)). Above this maximum normal loading (which is larger than P max 1⁄4 75) the contact regio”