Plastic Zone Size at Sharp Indentation Contact of Classical Elastic-Plastic Materials: Behavior at Linear Strain Hardening

The present analysis concerns a finite-element study of sharp (cone) indentation of classical elastic-plastic materials with linear strain hardening and, especially, the details of the behavior of the size of the plastic zone are at issue. It is shown that the plastic zone size parameters are depend...

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Bibliographic Details
Published in:Journal of testing and evaluation 2017-09, Vol.45 (5), p.1854-1861
Main Authors: Larsson, P.-L., Olsson, E.
Format: Article
Language:English
Subjects:
Correlation
Correlation methods
Elastic ideally plastic materials
Elastic-plastic Material
Elastoplasticity
Finite element method
Finite-element study
Hardening
Hardness
Indentation testing
Plastic hardening
Plastic zone
Plastic zone size
Plastic zones
Plastics
Sharp indentation
Strain hardening
Thermoelectricity
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Summary:The present analysis concerns a finite-element study of sharp (cone) indentation of classical elastic-plastic materials with linear strain hardening and, especially, the details of the behavior of the size of the plastic zone are at issue. It is shown that the plastic zone size parameters are dependent on two parameters: the well-known Johnson parameter and the level of plastic hardening. This dependence includes both geometrical and material properties. The details of the influence from the hardening level have not been explicitly studied previously. The results are compared with previous findings for elastic-ideally plastic materials.
ISSN:0090-3973
1945-7553
1945-7553
DOI:10.1520/JTE20160140