Contact model for elastoplastic analysis of half-space indentation by a spherical impactor

Big-Alabo, A., Harrison, P. and Cartmell, M. P. (2015) Contact model for elastoplastic analysis of half-space indentation by a spherical impactor. Computers and Structures, 151, pp. 20-29. (doi: 10.1016/j.compstruc.2015.01.005)

Abstract

This paper presents a new contact model for analysis of post-yield indentation of a half-space target by a spherical indenter. Unlike other existing models, the elastoplastic regime of the present model was modelled using two distinct force–indentation relationships based on experimentally and theoretically established indentation characteristics of the elastoplastic regime. The constants in the model were derived from continuity conditions and indention theory. Simulations of the present model show good prediction of experimental data. Also, an approach for determining the maximum contact force and indentation of an elastoplastic half-space from the impact conditions has been proposed.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Cartmell, Prof Matthew and Harrison, Dr Philip
• Authors: Big-Alabo, A., Harrison, P., and Cartmell, M. P.
• College/School: College of Science and Engineering > School of Engineering > Systems Power and Energy
• Journal Name: Computers and Structures
• Publisher: Elsevier Ltd.
• ISSN: 0045-7949
• ISSN (Online): 1879-2243
• Copyright Holders: Copyright © 2015 Elsevier, Ltd.
• First Published: First published in Computers and Structures 151:20-29
• Publisher Policy: Reproduced in accordance with the copyright policy of the publisher.