Study on the irradiation effect of mechanical properties of RPV steels using crystal plasticity model

Study on the irradiation effect of mechanical properties of RPV steels using crystal plasticity model

In this paper a body-centered cubic(BCC) crystal plasticity model based on microscopic dislocation mechanism is introduced and numerically implemented. The model is coupled with irradiation effect via tracking dislocation loop evolution on each slip system. On the basis of the model, uniaxial tensil...

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Main Authors: Junfeng Nie, Yunpeng Liu, Qihao Xie, Zhanli Liu
Format: Article
Language:English
Published: Elsevier 2019-04-01
Series:Nuclear Engineering and Technology
Online Access:http://www.sciencedirect.com/science/article/pii/S173857331830545X
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spelling doaj-6695d994d6524a63ab92dfab1649da912020-11-25T00:03:38ZengElsevierNuclear Engineering and Technology1738-57332019-04-01512501509Study on the irradiation effect of mechanical properties of RPV steels using crystal plasticity modelJunfeng Nie0Yunpeng Liu1Qihao Xie2Zhanli Liu3Institute of Nuclear and New Energy Technology, Collaborative Innovation Center of Advanced Nuclear Energy Technology, Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education, Tsinghua University, Beijing, 100084, China; Corresponding author.Institute of Nuclear and New Energy Technology, Collaborative Innovation Center of Advanced Nuclear Energy Technology, Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education, Tsinghua University, Beijing, 100084, ChinaData Science and Information Technology Research Center, Tsinghua-Berkeley Shenzhen Institute, Shenzhen, 518055, ChinaApplied Mechanics Lab., School of Aerospace Engineering, Tsinghua University, Beijing, 100084, ChinaIn this paper a body-centered cubic(BCC) crystal plasticity model based on microscopic dislocation mechanism is introduced and numerically implemented. The model is coupled with irradiation effect via tracking dislocation loop evolution on each slip system. On the basis of the model, uniaxial tensile tests of unirradiated and irradiated RPV steel(take Chinese A508-3 as an example) at different temperatures are simulated, and the simulation results agree well with the experimental results. Furthermore, crystal plasticity damage is introduced into the model. Then the damage behavior before and after irradiation is studied using the model. The results indicate that the model is an effective tool to study the effect of irradiation and temperature on the mechanical properties and damage behavior. Keywords: Crystal plasticity, Dislocation evolution, Irradiation effect, Damage, RPV steelhttp://www.sciencedirect.com/science/article/pii/S173857331830545X
collection DOAJ
language English
format Article
sources DOAJ
author Junfeng Nie
Yunpeng Liu
Qihao Xie
Zhanli Liu
spellingShingle Junfeng Nie
Yunpeng Liu
Qihao Xie
Zhanli Liu
Study on the irradiation effect of mechanical properties of RPV steels using crystal plasticity model
Nuclear Engineering and Technology
author_facet Junfeng Nie
Yunpeng Liu
Qihao Xie
Zhanli Liu
author_sort Junfeng Nie
title Study on the irradiation effect of mechanical properties of RPV steels using crystal plasticity model
title_short Study on the irradiation effect of mechanical properties of RPV steels using crystal plasticity model
title_full Study on the irradiation effect of mechanical properties of RPV steels using crystal plasticity model
title_fullStr Study on the irradiation effect of mechanical properties of RPV steels using crystal plasticity model
title_full_unstemmed Study on the irradiation effect of mechanical properties of RPV steels using crystal plasticity model
title_sort study on the irradiation effect of mechanical properties of rpv steels using crystal plasticity model
publisher Elsevier
series Nuclear Engineering and Technology
issn 1738-5733
publishDate 2019-04-01
description In this paper a body-centered cubic(BCC) crystal plasticity model based on microscopic dislocation mechanism is introduced and numerically implemented. The model is coupled with irradiation effect via tracking dislocation loop evolution on each slip system. On the basis of the model, uniaxial tensile tests of unirradiated and irradiated RPV steel(take Chinese A508-3 as an example) at different temperatures are simulated, and the simulation results agree well with the experimental results. Furthermore, crystal plasticity damage is introduced into the model. Then the damage behavior before and after irradiation is studied using the model. The results indicate that the model is an effective tool to study the effect of irradiation and temperature on the mechanical properties and damage behavior. Keywords: Crystal plasticity, Dislocation evolution, Irradiation effect, Damage, RPV steel
url http://www.sciencedirect.com/science/article/pii/S173857331830545X
work_keys_str_mv AT junfengnie studyontheirradiationeffectofmechanicalpropertiesofrpvsteelsusingcrystalplasticitymodel
AT yunpengliu studyontheirradiationeffectofmechanicalpropertiesofrpvsteelsusingcrystalplasticitymodel
AT qihaoxie studyontheirradiationeffectofmechanicalpropertiesofrpvsteelsusingcrystalplasticitymodel
AT zhanliliu studyontheirradiationeffectofmechanicalpropertiesofrpvsteelsusingcrystalplasticitymodel
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