Title: Assessment of Fuel Cladding Integrity by the Segmented Expanding MANDREL (SEM) Test
Authors: NILSSON Karl-FredrikNEGYESI Martin
Citation: 21st Internaltional Conference on Structural Mechnaics in Reactor Technology (SMiRT 21) vol. Division VII p. ID# 650 (1-8)
Publisher: IASMiRT
Publication Year: 2011
JRC N°: JRC66421
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC66421
Type: Articles in periodicals and books
Abstract: This paper presents the segmented expanding mandrel test as a materials characterization test as well as a test to simulate pellet cladding interaction. It is shown that the test can be used to derive stress-strain curves at moderate plastic deformation provided the friction coefficients are low and known. The pellet–cladding can be simulated by selecting representative friction coefficients and segments to represent cracked fuel. The test used limited amount of material and it is simple to perform. In particular the test can be used quantify how defects assess the ductility of thin-walled cladding tubes.
JRC Directorate:Energy, Transport and Climate

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