HTTF Core Stress Analysis

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Description

In accordance with the need to determine whether cracking of the ceramic core disks which will be constructed and used in the High Temperature Test Facility (HTTF) for heatup and cooldown experiments, a set of calculation were performed using Abaqus to investigate the thermal stresses levels and likelihood for cracking. The calculations showed that using the material properties provided for the Greencast 94F ceramic, cracking is predicted to occur. However, this modeling does not predict the size or length of the actual cracks. It is quite likely that cracks will be narrow with rough walls which would impede the flow ... continued below

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Hawkes, Brian D. & Schultz, Richard July 1, 2012.

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Description

In accordance with the need to determine whether cracking of the ceramic core disks which will be constructed and used in the High Temperature Test Facility (HTTF) for heatup and cooldown experiments, a set of calculation were performed using Abaqus to investigate the thermal stresses levels and likelihood for cracking. The calculations showed that using the material properties provided for the Greencast 94F ceramic, cracking is predicted to occur. However, this modeling does not predict the size or length of the actual cracks. It is quite likely that cracks will be narrow with rough walls which would impede the flow of coolant gases entering the cracks. Based on data recorded at Oregon State University using Greencast 94F samples that were heated and cooled at prescribed rates, it was concluded that the likelihood that the cracks would be detrimental to the experimental objectives is small.

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  • Report No.: INL/EXT-12-26626
  • Grant Number: DE-AC07-05ID14517
  • DOI: 10.2172/1056030 | External Link
  • Office of Scientific & Technical Information Report Number: 1056030
  • Archival Resource Key: ark:/67531/metadc844052

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Creation Date

  • July 1, 2012

Added to The UNT Digital Library

  • May 19, 2016, 9:45 a.m.

Description Last Updated

  • June 20, 2016, 2:31 p.m.

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Hawkes, Brian D. & Schultz, Richard. HTTF Core Stress Analysis, report, July 1, 2012; Idaho Falls, Idaho. (digital.library.unt.edu/ark:/67531/metadc844052/: accessed September 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.