Session: OAC-04-03 Storage and Transportation of Radioactive and other Hazardous Materials - 3

Paper Number: 105912

105912 - 3d Metrology Analysis of Structural Damages on Type B Shipping Container Compared to Predicted Fea Results After Completion of Nct and Hac Regulatory Testing 

Packages used to transport Type B quantities of radioactive materials must meet normal conditions of transportation (NCT) and hypothetical accident conditions (HAC) requirements, as defined in Title 10 of the Code of Federal Regulations Part 71. Evaluating package designs to these criteria typically involves a combination of analysis and physical testing. These required physical tests include free drop, crush, puncture, penetration, compression, vibration, water spray, water immersion, and thermal tests which results in structural damages that must be evaluated and measured for comparison with data obtained from modeling and other specified standards.

 

This paper describes a  comparison of structural dimension of a Type B package that has underwent a series of NCT and HAC tests to the Finite Element Analysis (FEA)) model. Dimensional data of the Type B package Test Unit (TU) was collected using a high-end 3D scanner. This scan data was then analyzed in a CAD environment to extract the structural damage dimensions that the package experienced. The scanned data is then compared to the corresponding structural damaged area in the FEA model.

 

Results obtained from the comparison of the 3D scanned package  to the LS DYNA showed that there were differences in the structural dimensions. While there were differences, most of the dimensions didn’t vary greatly. These discrepancies can be explained as mostly being caused by tolerances of the drop angles when carrying out the NCT and HAC tests whereas the FEA results are created in a perfect configuration.

Presenting Author: Paul Nogradi Oak Ridge National Lab

Presenting Author Biography: Paul Nogradi has served as a Mechanical Engineer at Oak Ridge National Laboratory since 2015. While at ORNL he has carried out several regulatory testing campaigns for various Type-B Nuclear Shipping Containers. This work has included drop testing, thermal testing, and water submersion tests. Paul has also lead package security upgrades for the NNSA's Orphan Source Recovery Program. He has served as lead engineer for multiple x-ray generators and neutron detectors that are being used for object imaging. He holds a B.S. in Mechanical Engineering and a M.S in Industrial Engineering, both from The University of Tennessee.

Authors:

Paul Nogradi Oak Ridge National Lab
Oscar Martinez Oak Ridge National Lab
Abiodun Adeniyi Oak Ridge National Lab
Lance Lowe Oak Ridge National Lab
Ross Whittenbarger Y-12 National Security Complex
Ryan Fisher Y-12 National Security Complex
Austin Mclaurine Y-12 national Security Complex