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Title: Use of Bayesian networks for qualification planning: Early results of factor analysis.


Abstract not provided.

Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
Sandia University Part-Time Program
OSTI Identifier:
Report Number(s):
Journal ID: ISSN 1877-0509; 644983
DOE Contract Number:
Resource Type:
Resource Relation:
Journal Volume: 95; Conference: Proposed for presentation at the Complex Adaptive Systems held November 2-4, 2016 in Los Angeles, CA.
Country of Publication:
United States

Citation Formats

Rizzo, Davinia, and Dr. Mark Blackburn. Use of Bayesian networks for qualification planning: Early results of factor analysis.. United States: N. p., 2016. Web. doi:10.1016/j.procs.2016.09.354.
Rizzo, Davinia, & Dr. Mark Blackburn. Use of Bayesian networks for qualification planning: Early results of factor analysis.. United States. doi:10.1016/j.procs.2016.09.354.
Rizzo, Davinia, and Dr. Mark Blackburn. 2016. "Use of Bayesian networks for qualification planning: Early results of factor analysis.". United States. doi:10.1016/j.procs.2016.09.354.
title = {Use of Bayesian networks for qualification planning: Early results of factor analysis.},
author = {Rizzo, Davinia and Dr. Mark Blackburn},
abstractNote = {Abstract not provided.},
doi = {10.1016/j.procs.2016.09.354},
journal = {},
number = ,
volume = 95,
place = {United States},
year = 2016,
month = 7

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  • Eight cable vendors are presently fabricating materials as part of Phase I of the Superconducting Super Collider (SSC) cable qualification program. This program is designed to prepare each vendor to compete for the supply of superconducting cable for dipole and quadrupole magnets for the SSC magnet subcontractors. Phase I is split into a final R D effort (Phase IA) of approximately 4000 kg, and a baseline production process of 3500 kg (Phase IB). As part of the R D effort variables for most cable vendors approximately half of the Phase IA billets are being fabricated using NbTi alloy from themore » cable vendor's primary'' alloy vendor and the remainder from a secondary'' alloy vendor, as the vendor sees appropriate. All cable vendors have chosen Teledyne Wah Chang-Albany (TWCA) as their primary alloy source. Two cable vendors have chosen Toho Titanium, and four have chosen NRC, Inc., as their secondary alloy source. The purpose of this paper is to report the typical values quoted on material supplied in this effort as well as verification measurements made at the SSC Laboratory (SSCL). The final product chemistry, grain size, hardness, and radiographs from the alloy vendors will be reported along with grain size, hardness, and relative homogeneity measured by EDX at the SSCL. Normalized monofilament extrusion data are also discussed. Data will be analyzed for significant differences in raw material properties. These differences are to be noted during future analysis of the final strand manufactured from these material. Only at that time will it be possible to determine positive or negative impacts of specific properties of the raw materials.« less
  • From 1985 through 1987, the US Nuclear Regulatory Commission (NRC) and the nuclear industry have questioned the technical adequacy of environmental qualification work performed during the early 1980s to satisfy the requirements of IE Bulletin 79-01B and the subsequent 10CFR50.49. A major technical challenge has been that some subcomponents within the equipment items that were qualified have not been properly accounted for and analyzed. An alternative to resolve this issue is to permit the use of similarity analyses to analyze the behavior of the materials in question for all environmental conditions (e.g., radiation, aging, temperature, and pressure). The NRC andmore » industry need to work closely in the future to develop acceptance criteria for similarity based on reasonable assurance of qualification for generic materials. The Nuclear Utility Group on Equipment Qualification has been working to this end. Without such an agreement, the nuclear industry may have to spend valuable resources to requalify or to replace equipment that could be qualified through sound similarity analyses, resources that could be utilized to improve safety in other areas of the plant.« less