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

Akuro Big-Alabo, Philip Harrison, Matthew P. Cartmell

Research output: Contribution to journal › Article

12 Citations (Scopus)

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.
LanguageEnglish
Pages20-29
Number of pages10
JournalComputers and Structures
Volume151
Early online date31 Jan 2015
DOIs
Publication statusPublished - 15 Apr 2015

Fingerprint

Elasto-plastic Analysis
Indentation
Half-space
Contact
Elasto-plastic
Model
Contact Force
Experimental Data
Distinct
Target
Prediction
Simulation

Keywords

  • contact model
  • indentation
  • elastoplastic
  • plastic deformation
  • half-space
  • impact

Cite this

Big-Alabo, Akuro ; Harrison, Philip ; Cartmell, Matthew P. / Contact model for elastoplastic analysis of half-space indentation by a spherical impactor. In: Computers and Structures. 2015 ; Vol. 151. pp. 20-29.
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Big-Alabo, A, Harrison, P & Cartmell, MP 2015, 'Contact model for elastoplastic analysis of half-space indentation by a spherical impactor' Computers and Structures, vol. 151, pp. 20-29. https://doi.org/10.1016/j.compstruc.2015.01.005

Contact model for elastoplastic analysis of half-space indentation by a spherical impactor. / Big-Alabo, Akuro; Harrison, Philip; Cartmell, Matthew P.

In: Computers and Structures, Vol. 151, 15.04.2015, p. 20-29.

Research output: Contribution to journal › Article

TY - JOUR

T1 - Contact model for elastoplastic analysis of half-space indentation by a spherical impactor

AU - Big-Alabo, Akuro

AU - Harrison, Philip

AU - Cartmell, Matthew P.

PY - 2015/4/15

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N2 - 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.

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KW - contact model

KW - indentation

KW - elastoplastic

KW - plastic deformation

KW - half-space

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Big-Alabo A, Harrison P, Cartmell MP. Contact model for elastoplastic analysis of half-space indentation by a spherical impactor. Computers and Structures. 2015 Apr 15;151:20-29. https://doi.org/10.1016/j.compstruc.2015.01.005

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