Constitutive modelling for isothermal low-cycle fatigue and fatigue-creep of a martensitic steel

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F21%3A00351462" target="_blank" >RIV/68407700:21220/21:00351462 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.mechmat.2021.104032" target="_blank" >https://doi.org/10.1016/j.mechmat.2021.104032</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.mechmat.2021.104032" target="_blank" >10.1016/j.mechmat.2021.104032</a>

Result language
angličtina
Original language name
Constitutive modelling for isothermal low-cycle fatigue and fatigue-creep of a martensitic steel
Original language description
An improved unified viscoplastic model is developed within the framework of the Chaboche model in order to simulate the mechanical behaviour of a martensitic steel under Low-Cycle Fatigue (LCF) and Low-Cycle Fatigue-Creep (LCFC) loadings at 550 °C. The effects of strain rate sensitivity, static recovery, strain range-dependent cyclic softening, along with the effect of additional hardening under non-proportional loading are incorporated into the constitutive equations. The non-linear kinematic hardening rule is modified in such a way that it enables the simulation of the evolutionary behaviour of mean stress and the effect of decelerating stress relaxation. Finally, the prediction capability of the proposed model is illustrated for the experimental data obtained from the various strain-controlled axial-torsional tests.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20302 - Applied mechanics

Project
<a href="/en/project/GA19-03282S" target="_blank" >GA19-03282S: Influence of Complex and Cyclic Loading Modes on Lifetime of Machine Parts Made by Additive Manufacturing</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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