Consistent treatment of ageing-time evolution in McCormick type material models
(2026) In International Journal of Solids and Structures 337.- Abstract
This work enhances conventional constitutive models for dynamic strain ageing (DSA) based on McCormick’s ageing-time evolution, which incorrectly predicts continuous hardening even within loading stages without plastic flow. An adapted evolution equation is proposed that ties ageing-time progression to the yield surface, ensuring that DSA develops only when dislocations are energetically inclined to glide. To implement such a model consistently, the classical predictor–corrector scheme is revised, and two alternative return-mapping algorithms are established to ensure robust classification of elastic, pseudo-elastic, and plastic states. Numerical examples and experimental data demonstrate that both approaches maintain the predictive... (More)
This work enhances conventional constitutive models for dynamic strain ageing (DSA) based on McCormick’s ageing-time evolution, which incorrectly predicts continuous hardening even within loading stages without plastic flow. An adapted evolution equation is proposed that ties ageing-time progression to the yield surface, ensuring that DSA develops only when dislocations are energetically inclined to glide. To implement such a model consistently, the classical predictor–corrector scheme is revised, and two alternative return-mapping algorithms are established to ensure robust classification of elastic, pseudo-elastic, and plastic states. Numerical examples and experimental data demonstrate that both approaches maintain the predictive capability of the original model while ensuring a consistent and physically meaningful evolution of internal variables.
(Less)
- author
- Rose, Lars and Menzel, Andreas LU
- organization
- publishing date
- 2026-08-01
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Ageing time, Dynamic strain ageing (DSA), McCormick model, Portevin–Le Chatelier (PLC)
- in
- International Journal of Solids and Structures
- volume
- 337
- article number
- 114030
- publisher
- Elsevier
- external identifiers
-
- scopus:105037631516
- ISSN
- 0020-7683
- DOI
- 10.1016/j.ijsolstr.2026.114030
- language
- English
- LU publication?
- yes
- additional info
- Publisher Copyright: © 2026 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY license. http://creativecommons.org/licenses/by/4.0/
- id
- 68dff9da-8f77-4811-b64b-898ca7c03b20
- date added to LUP
- 2026-07-16 14:46:42
- date last changed
- 2026-07-16 14:47:41
@article{68dff9da-8f77-4811-b64b-898ca7c03b20,
abstract = {{<p>This work enhances conventional constitutive models for dynamic strain ageing (DSA) based on McCormick’s ageing-time evolution, which incorrectly predicts continuous hardening even within loading stages without plastic flow. An adapted evolution equation is proposed that ties ageing-time progression to the yield surface, ensuring that DSA develops only when dislocations are energetically inclined to glide. To implement such a model consistently, the classical predictor–corrector scheme is revised, and two alternative return-mapping algorithms are established to ensure robust classification of elastic, pseudo-elastic, and plastic states. Numerical examples and experimental data demonstrate that both approaches maintain the predictive capability of the original model while ensuring a consistent and physically meaningful evolution of internal variables.</p>}},
author = {{Rose, Lars and Menzel, Andreas}},
issn = {{0020-7683}},
keywords = {{Ageing time; Dynamic strain ageing (DSA); McCormick model; Portevin–Le Chatelier (PLC)}},
language = {{eng}},
month = {{08}},
publisher = {{Elsevier}},
series = {{International Journal of Solids and Structures}},
title = {{Consistent treatment of ageing-time evolution in McCormick type material models}},
url = {{http://dx.doi.org/10.1016/j.ijsolstr.2026.114030}},
doi = {{10.1016/j.ijsolstr.2026.114030}},
volume = {{337}},
year = {{2026}},
}