Identification of ductile damage parameters for pressure vessel steel
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26316919%3A_____%2F18%3AN0000003" target="_blank" >RIV/26316919:_____/18:N0000003 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/68407700:21220/18:00240066
Výsledek na webu
<a href="http://dx.doi.org/10.1016/j.nucengdes.2015.12.014" target="_blank" >http://dx.doi.org/10.1016/j.nucengdes.2015.12.014</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.nucengdes.2015.12.014" target="_blank" >10.1016/j.nucengdes.2015.12.014</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Identification of ductile damage parameters for pressure vessel steel
Popis výsledku v původním jazyce
The FEM simulations in the field of design and safety assessment represent very powerful tools, but they are strongly limited by available material models and material input data. If states near to ductile fracture are to be considered, more complex material description taking into account multiaxial loading conditions is necessary. As complex material models suitable to include these effects into practical simulations are still mostly phenomenological, experiments with samples of various geometries tested under various loading modes have to be used. On the basis of these tests a complex material behavior model covering elastic and plastic material behavior for various stress states can be obtained. This kind of the material behavior description allows a wide range of application from calculation of component limit loading conditions to material properties conversion for samples of different sizes e.g. This paper deals with ductile damage parameters determination for two typical Reactor Pressure Vessel (RPV) steels ferritic and austenitic. The ferritic steel is used for the RPV vessel and the austenitic one is used for internals. There are chosen appropriate samples geometries based on the preliminary FEM stress state analyses of samples at first. Subsequently, testing of proposed samples is performed and material parameters are evaluated. The obtained material plastic damage parameters are subsequently applied to FEM simulation of sharp notched samples and capabilities of applied models to describe material behavior for high stress concentrations is assessed on the basis comparison with real tests. © 2016 Elsevier B.V.
Název v anglickém jazyce
Identification of ductile damage parameters for pressure vessel steel
Popis výsledku anglicky
The FEM simulations in the field of design and safety assessment represent very powerful tools, but they are strongly limited by available material models and material input data. If states near to ductile fracture are to be considered, more complex material description taking into account multiaxial loading conditions is necessary. As complex material models suitable to include these effects into practical simulations are still mostly phenomenological, experiments with samples of various geometries tested under various loading modes have to be used. On the basis of these tests a complex material behavior model covering elastic and plastic material behavior for various stress states can be obtained. This kind of the material behavior description allows a wide range of application from calculation of component limit loading conditions to material properties conversion for samples of different sizes e.g. This paper deals with ductile damage parameters determination for two typical Reactor Pressure Vessel (RPV) steels ferritic and austenitic. The ferritic steel is used for the RPV vessel and the austenitic one is used for internals. There are chosen appropriate samples geometries based on the preliminary FEM stress state analyses of samples at first. Subsequently, testing of proposed samples is performed and material parameters are evaluated. The obtained material plastic damage parameters are subsequently applied to FEM simulation of sharp notched samples and capabilities of applied models to describe material behavior for high stress concentrations is assessed on the basis comparison with real tests. © 2016 Elsevier B.V.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
20306 - Audio engineering, reliability analysis
Návaznosti výsledku
Projekt
<a href="/cs/project/TA02010992" target="_blank" >TA02010992: Vývoj a verifikace nových numerických metod svařování a tepelného zpracování, včetně zjednodušené numerické predikce životnosti svarových spojů, pro progresivní materiály využívané v energetice, leteckém a případně i kosmickém průmyslu.</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2018
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
NUCLEAR ENGINEERING AND DESIGN
ISSN
0029-5493
e-ISSN
1872-759X
Svazek periodika
328
Číslo periodika v rámci svazku
2018
Stát vydavatele periodika
CH - Švýcarská konfederace
Počet stran výsledku
9
Strana od-do
372-380
Kód UT WoS článku
000427432300034
EID výsledku v databázi Scopus
2-s2.0-84953775734