Macro-scale modeling of finite strain viscoplasticity in irradiated F/M steels: a continuum thermodynamic framework
-
Published:2023-03
Issue:2
Volume:35
Page:521-543
-
ISSN:0935-1175
-
Container-title:Continuum Mechanics and Thermodynamics
-
language:en
-
Short-container-title:Continuum Mech. Thermodyn.
Author:
Rajakrishnan Roshan R.ORCID, Gaganidze Ermile, Terentyev Dimitry, Aktaa Jarir
Abstract
AbstractThe European reduced activation ferritic/martensitic steel Eurofer97 in irradiated states displays significant nonlinear material behavior involving irradiation hardening, loss of strain hardening, and uniform elongation, as well as irradiation-induced embrittlement. Nonlinear behavior of irradiated steel modeled on the continuum scale will help to estimate the maximum operating range of the irradiated components beyond the onset of localized plastic flow. In this work, a thermodynamic framework for modeling irradiation-influenced deformation is established based on irradiation defect density and a thermodynamically consistent finite strain formulation of an existing viscoplastic model using the Dual Variables concept is presented. The model is implemented in ABAQUS allowing the simulation of tensile tests conducted on irradiated and unirradiated materials which shows the model’s ability to capture the post-yield and post-necking behavior observed in experiments up to ductile failure.
Funder
H2020 Euratom KIT Fusion program
Publisher
Springer Science and Business Media LLC
Subject
General Physics and Astronomy,Mechanics of Materials,General Materials Science
Reference45 articles.
1. Hishinuma, A., Kohyama, A., Klueh, R.L., Gelles, D.S., Dietz, W., Ehrlich, K.: Current status and future R &D for reduced-activation ferritic/martensitic steels. J. Nucl. Mater. 258–263, 193–204 (1998). https://doi.org/10.1016/S0022-3115(98)00395-X 2. van der Schaaf, B., Gelles, D., Jitsukawa, S., Kimura, A., Klueh, R., Möslang, A., Odette, G.: Progress and critical issues of reduced activation ferritic/martensitic steel development. J. Nucl. Mater. 283–287, 52–59 (2000). https://doi.org/10.1016/S0022-3115(00)00220-8 3. Petersen, C.: Post irradiation examination of RAFM steels after fast reactor irradiation up to 33 dpa and< 340 degree Celsius (ARBOR 1) (2010) 4. Gaganidze, E., Petersen, C., Materna-Morris, E., Dethloff, C., Weiß, O.J., Aktaa, J., Povstyanko, A., Fedoseev, A., Makarov, O., Prokhorov, V.: Mechanical properties and TEM examination of RAFM steels irradiated up to 70 dpa in BOR-60. J. Nucl. Mater. 417, 93–98 (2011). https://doi.org/10.1016/j.jnucmat.2010.12.047 5. Smidt, P.A., Mastel, B.: Some observations of dislocation channelling in irradiated iron. Philos. Mag. 20, 651–656 (1969). https://doi.org/10.1080/14786436908228737
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献
|
|