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Experimental characterisation of a CuAg alloy for thermo-mechanical applications. Part 1: Identifying parameters of non-linear plasticity models

Benasciutti, D.
•
Srnec Novak, J.
•
Moro, L.
altro
Stanojević, A.
2018
  • journal article

Periodico
FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
Abstract
Despite the wide use of copper alloys in thermo-mechanical applications, there is little data on their cyclic plasticity behaviour, particularly for CuAg alloys. This prevents the behaviour of the materials from being correctly described in numerical simulations for design purposes. In this work CuAg0.1 alloy used for thermo-mechanical applications was tested by strain-controlled cyclic loading at three different temperatures (room temperature, 250 °C, 300 °C). In each test, stress-strain cycles were recorded until the alloy had completely stabilised. These cycles were then used to identify material parameters of non-linear kinematic and isotropic models. The focus was on plasticity models (Armstrong-Frederick, Chaboche, Voce) that are usually implemented in commercial finite element codes. Simulated cyclic responses with the identified material models were compared with experiments, and showed a good agreement. The identified material parameters for the CuAg alloy under investigation can be used directly in finite element models for cyclic plasticity simulations, thus enabling a durability analysis of components under thermo-mechanical loads to be performed, particularly in the field of steel-making plants.
DOI
10.1111/ffe.12783
WOS
WOS:000431638300009
Archivio
http://hdl.handle.net/11390/1124500
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85041591549
Diritti
closed access
Soggetti
  • Cyclic plasticity

  • Kinematic and isotrop...

  • Parameter identificat...

  • Materials Science (al...

  • Mechanics of Material...

  • Mechanical Engineerin...

Scopus© citazioni
16
Data di acquisizione
Jun 7, 2022
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Web of Science© citazioni
16
Data di acquisizione
Mar 22, 2024
Visualizzazioni
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Data di acquisizione
Apr 19, 2024
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