Prestress load distribution modeling for containment digital twin model

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F25%3A00390240" target="_blank" >RIV/68407700:21110/25:00390240 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.14311/APP.2025.54.0067" target="_blank" >https://doi.org/10.14311/APP.2025.54.0067</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.14311/APP.2025.54.0067" target="_blank" >10.14311/APP.2025.54.0067</a>

Result language
angličtina
Original language name
Prestress load distribution modeling for containment digital twin model
Original language description
This paper examines the prestress load distribution in the ducts of the prestressing tendons of a VVER-type nuclear reactor containment. It introduces a method for distributing the simplified linear load from the prestressing cable onto the surface area of the duct. Furthermore, a procedure for applying this calculation to a detailed numerical 3D model of a containment segment is described. This method can be implemented into computational software, such as OOFEM, to incorporate this more accurately defined load into a comprehensive stress analysis of the segment. Realistic definition of load distribution from prestressing tendons on the surface of the ducts is critical for identifying potential deviations from a uniform prestress distribution within the containment wall. This, in turn, facilitates assessments such as evaluating the extension of the structure’s service life.
Czech name
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Czech description
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Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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