Finite element analysis of cyclic indentation of an elastic-perfectly plastic half-space by a rigid sphere

S. L. Yan, L. Y. Li*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

<jats:p> This paper presents a numerical study on the cyclic indentation of an elastic-perfectly plastic half-space by a rigid sphere. The study is performed using non-linear finite element methods. Results of contact pressure distribution, relationships between contact force, displacement and contact radius during loading, unloading and reloading are presented. The results show that the deformation during unloading from a contact beyond the elastic limit is perfectly elastic. However, the pressure distribution returns to the Hertzian elliptical distribution only when the maximum pressure at the contact centre is below 1.6α<jats:sub>y</jats:sub>. The reloading curve is found to be exactly the same as the unloading curve and the pressure distributions in reloading and unloading are the same for the same contact force. The influence of the plastic permanent deformation and residual stresses on the contact behaviour during reloading is discussed. </jats:p>
Original languageEnglish
Pages (from-to)505-514
Number of pages0
JournalProceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science
Volume217
Issue number5
DOIs
Publication statusPublished - 1 May 2003

Fingerprint

Dive into the research topics of 'Finite element analysis of cyclic indentation of an elastic-perfectly plastic half-space by a rigid sphere'. Together they form a unique fingerprint.

Cite this