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Title: Modeling 3D PCMI using the Extended Finite Element Method with higher order elements

Technical Report ·
DOI:https://doi.org/10.2172/1409274· OSTI ID:1409274
 [1];  [1]
  1. Idaho National Lab. (INL), Idaho Falls, ID (United States)

This report documents the recent development to enable XFEM to work with higher order elements. It also demonstrates the application of higher order (quadratic) elements to both 2D and 3D models of PCMI problems, where discrete fractures in the fuel are represented using XFEM. The modeling results demonstrate the ability of the higher order XFEM to accurately capture the effects of a crack on the response in the vicinity of the intersecting surfaces of cracked fuel and cladding, as well as represent smooth responses in the regions away from the crack.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-00OR22725
OSTI ID:
1409274
Report Number(s):
ORNL/TM-2017/218
Country of Publication:
United States
Language:
English