IMPACT ANALYSIS OF CANDU NUCLEAR WASTE CONTAINERS FOR A HYPOTHETICAL DROP ACCIDENT


11th International Conference on CANDU® Maintenance and Nuclear Components - 2017 Oct. 01-04

Presented at:
11th International Conference on CANDU® Maintenance and Nuclear Components
2017 Oct. 01-04
Location:
Toronto, ON Canada
Session Title:
Integrity of Structures and Components

Authors:
L. Pan (BWXT Canada)
P. Zheng (BWXT Canada)
D. Speer (Bruce Power)
B. Nikic (Bruce Power)
T. Carter (Bruce Power)
  

Abstract

To refurbish a CANDU® reactor unit, Retube Waster Containers (RWCs) are required to contain medium level radioactive waste components. Two types of RWCs are designed for two types of waste components. The Abaqus finite element code is used to assess a hypothetical drop accident of the RWCs at the storage building from a height of 4 meters. Detailed finite element models are created to include the container body, lid, shielding panels, bolts and a slab-on-grade model. Nonlinear numerical simulations are performed for various drop orientations. The results are checked against both the functional acceptance criteria and the stress/strain based acceptance criteria.

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