Cyclic indentation of an elastic-perfectly plastic material
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Fundamental knowledge of the indentation deformation of materials is critical to evaluating dynamic behavior of materials in using the indentation technique. Early studies on the contact of materials provided analytical treatments for both elastic [1, 2, 3, 4, 5, 6] and plastic response  subjected to dynamic loading. Despite valuable insight into the indentation deformation of materials from analytical approaches, it is difficult to apply these methods in the analysis of the indentation of elastoplastic materials. Consequently, numerical techniques [8, 9, 10] were advanced to account for complicated geometries and to establish realistic models. The review of literature indicates that the majority of analytical and numerical solutions of various indentation problems involving elastic and elastoplastic materials have focused on the contact deformation under quasi-static conditions. The obtained solutions might not be applicable to dynamic indentation problems. This has imposed a...
KeywordsPlastic Zone Indentation Depth Finite Element Mesh Indentation Load Static Indentation
This work is supported by NSF through a grant CMS-0508989, supported by Kentucky Science and Engineering Foundation through a grant KSEF-148–502-03-73, and partially supported by General Motors Corporation.
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