Cyclic indentation of an elastic-perfectly plastic material

Fuqian Yang, Aditi Saran

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


The use of finite element to simulate the dynamic indentation of an elastic-perfectly plastic material by a rigid cylindrical indenter of flat-end is described. The simulation will help in understanding dynamic indentation problems as encountered in most nanoindentation tests. In the simulation, we assume that the material is isotropic and homogeneous, the system is isothermal, and the material is not subjected to body force. The results show that under cyclic indentation, the plastic zone underneath the indentation propagates into elastic-perfectly plastic materials for small indentation depth. The average penetration rate of the indenter increases with the increase in the amplitude of the cyclic indentation load and the median of the indentation load. The results also show that the propagation rate of the plastic zone increases with the increase of the amplitude and the median in the indentation load.

Original languageEnglish
Pages (from-to)6077-6080
Number of pages4
JournalJournal of Materials Science
Issue number18
StatePublished - Aug 2006

Bibliographical note

Funding Information:
Acknowledgement 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.

ASJC Scopus subject areas

  • Mechanics of Materials
  • Ceramics and Composites
  • Mechanical Engineering
  • Polymers and Plastics
  • General Materials Science
  • Materials Science (miscellaneous)


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