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Title: Cladding axial elongation models for FRAP-T6. [PWR; BWR]

Conference ·
OSTI ID:5539450

This paper presents a description of the cladding axial elongation models developed at the Idaho National Engineering Laboratory (INEL) for use by the FRAP-T6 computer code in analyzing the response of fuel rods during reactor transients in light water reactors (LWR). The FRAP-T6 code contains models (FRACAS-II subcode) that analyze the structural response of a fuel rod including pellet-cladding-mechanical-interaction (PCMI). Recently, four models were incorporated into FRACAS-II to calculate cladding axial deformation: (a) axial PCMI, (b) trapped fuel stack, (c) fuel relocation, and (d) effective fuel thermal expansion. Comparisons of cladding axial elongation measurements from two experiments with the corresponding FRAP-T6 calculations are presented.

Research Organization:
EG and G Idaho, Inc., Idaho Falls (USA)
DOE Contract Number:
AC07-76ID01570
OSTI ID:
5539450
Report Number(s):
EGG-M-17682; CONF-830805-59; ON: DE84001049
Resource Relation:
Conference: 7. international conference on structural mechanics in reactor technology, Chicago, IL, USA, 22 Aug 1983
Country of Publication:
United States
Language:
English