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Weld zone material characterisation based on spherical indentation data

Weld zone material characterisation based on spherical indentation data
Weld zone material characterisation based on spherical indentation data
An improved elasto-plastic characterisation technique relying on instrumented indentation data, accounting for frame compliance, spherical indenter imperfections and, most importantly, material pile-up at indentation edges was validated on experimental data from control specimens with known properties. The method was subsequently applied to the characterisation of weld regions for which traditional testing methods are not applicable. Variations of elasto-plastic properties were obtained from indentations on a butt-welded steel specimen spanning the three distinct weld regions. The consistency of these results and their sensitivity to variations of experimental data was examined and discussed.
elasto-plastic properties, instrumented indentation, material pile-up, spherical indenter, weld zones
2046-0546
SYNGELLAKIS, STAVROS
1279f4e2-97ec-44dc-b4c2-28f5ac9c2f88
Habbab, H.
be9ccb6a-f26e-4b68-bad8-c2e29f9f867e
Mellor, Brian
2b13b80f-880b-49ac-82fe-827a15dde2fe
SYNGELLAKIS, STAVROS
1279f4e2-97ec-44dc-b4c2-28f5ac9c2f88
Habbab, H.
be9ccb6a-f26e-4b68-bad8-c2e29f9f867e
Mellor, Brian
2b13b80f-880b-49ac-82fe-827a15dde2fe

SYNGELLAKIS, STAVROS, Habbab, H. and Mellor, Brian (2017) Weld zone material characterisation based on spherical indentation data. International Journal of Computational Methods and Experimental Measurements, 6 (3).

Record type: Article

Abstract

An improved elasto-plastic characterisation technique relying on instrumented indentation data, accounting for frame compliance, spherical indenter imperfections and, most importantly, material pile-up at indentation edges was validated on experimental data from control specimens with known properties. The method was subsequently applied to the characterisation of weld regions for which traditional testing methods are not applicable. Variations of elasto-plastic properties were obtained from indentations on a butt-welded steel specimen spanning the three distinct weld regions. The consistency of these results and their sensitivity to variations of experimental data was examined and discussed.

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Accepted/In Press date: 21 April 2017
Published date: 2 November 2017
Keywords: elasto-plastic properties, instrumented indentation, material pile-up, spherical indenter, weld zones

Identifiers

Local EPrints ID: 416082
URI: http://eprints.soton.ac.uk/id/eprint/416082
ISSN: 2046-0546
PURE UUID: 3eb1dfb5-c452-43ee-9aef-c75ca72dbc3e

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Date deposited: 01 Dec 2017 17:30
Last modified: 06 Oct 2020 18:20

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Contributors

Author: STAVROS SYNGELLAKIS
Author: H. Habbab
Author: Brian Mellor

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