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Mechanics of Control Element During Irradiation

Massih, A.R. ; Isaksson, P. and Ståhle, P. LU (1997) Transactions of the 14th Conference on Structural Mechanics in Reactor Technology (SMiRT 14)
Abstract
A finite element analysis of a control rod blade consisting of B C powder and stainless steel cladding has been performed using the ADINA program. An algorithm for finite element calculations of a porous material such as BC powder has been developed. This algorithm describes both the swelling and consolidation behavior of BC powder. The Garson vield condition for isotropic porous medium with cavities has been uolized to model the consolidation phenomenon. The constitutive model has been implemented in a user-defined subroutine of the ADINA finite element code. A two-dimensional 4-node isoparametric solid element has been used. A Newton-Raphson scheme has been applied to solve the nonlinear finite element equations. The model has been used... (More)
A finite element analysis of a control rod blade consisting of B C powder and stainless steel cladding has been performed using the ADINA program. An algorithm for finite element calculations of a porous material such as BC powder has been developed. This algorithm describes both the swelling and consolidation behavior of BC powder. The Garson vield condition for isotropic porous medium with cavities has been uolized to model the consolidation phenomenon. The constitutive model has been implemented in a user-defined subroutine of the ADINA finite element code. A two-dimensional 4-node isoparametric solid element has been used. A Newton-Raphson scheme has been applied to solve the nonlinear finite element equations. The model has been used to predict stresses and strains of the blade during Irradiation when both B. swelling and radiation-induced creep of stainless steel are effective. (Less)
Abstract (Swedish)
A finite element analysis of a control rod blade consisting of B4C powder and stainless steel cladding has been performed using the ADINA program. An algorithm for finite element calculations of a porous material such as B4C powder has been developed. This algorithm describes both the swelling and consolidation behavior of B4C powder. The Gurson yield condition for isotropic porous media with cavities has been utilized to model the consolidation phenomenon. The constitutive model has been implemented in a user-defined subroutine of the ADINA finite element code. A two-dimensional 4-node isoparametric solid element has been used. A Newton-Raphson scheme has been applied to solve the nonlinear finite element equations. The model has been... (More)
A finite element analysis of a control rod blade consisting of B4C powder and stainless steel cladding has been performed using the ADINA program. An algorithm for finite element calculations of a porous material such as B4C powder has been developed. This algorithm describes both the swelling and consolidation behavior of B4C powder. The Gurson yield condition for isotropic porous media with cavities has been utilized to model the consolidation phenomenon. The constitutive model has been implemented in a user-defined subroutine of the ADINA finite element code. A two-dimensional 4-node isoparametric solid element has been used. A Newton-Raphson scheme has been applied to solve the nonlinear finite element equations. The model has been used to predict stresses and strains of the blade during irradiation when both B4C swelling and irradiation-induced creep of stainless steel are effective. (Less)
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author
; and
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
Transactions of the 14th Conference on Structural Mechanics in Reactor Technology
editor
Park, Goon-Cherl
publisher
SMiRT
conference name
Transactions of the 14th Conference on Structural Mechanics in Reactor Technology (SMiRT 14)
conference location
Lyon, France
conference dates
1997-08-17 - 1997-08-22
language
English
LU publication?
no
id
f29f1b53-c3b5-4713-b237-ea472e693705
date added to LUP
2019-06-25 19:48:03
date last changed
2020-03-25 15:16:21
@inproceedings{f29f1b53-c3b5-4713-b237-ea472e693705,
  abstract     = {{A finite element analysis of a control rod blade consisting of B C powder and stainless steel cladding has been performed using the ADINA program. An algorithm for finite element calculations of a porous material such as BC powder has been developed. This algorithm describes both the swelling and consolidation behavior of BC powder. The Garson vield condition for isotropic porous medium with cavities has been uolized to model the consolidation phenomenon. The constitutive model has been implemented in a user-defined subroutine of the ADINA finite element code. A two-dimensional 4-node isoparametric solid element has been used. A Newton-Raphson scheme has been applied to solve the nonlinear finite element equations. The model has been used to predict stresses and strains of the blade during Irradiation when both B. swelling and radiation-induced creep of stainless steel are effective.}},
  author       = {{Massih, A.R. and Isaksson, P. and Ståhle, P.}},
  booktitle    = {{Transactions of the 14th Conference on Structural Mechanics in Reactor Technology}},
  editor       = {{Park, Goon-Cherl}},
  language     = {{eng}},
  publisher    = {{SMiRT}},
  title        = {{Mechanics of Control Element During Irradiation}},
  url          = {{https://lup.lub.lu.se/search/files/66639265/mechanics_of_control_.pdf}},
  year         = {{1997}},
}