Effects of mechanical boundary conditions on thermal shock resistance of ultra-high temperature ceramics

Tianbao Cheng, Weiguo Li*, Yushan Shi, Wei Lu, Daining Fang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

The effects of mechanical boundary conditions, often encountered in thermalstructural engineering, on the thermal shock resistance (TSR) of ultra-high temperature ceramics (UHTCs) are studied by investigating the TSR of a UHTC plate with various types of constraints under the first, second, and third type of thermal boundary conditions. The TSR of UHTCs is strongly dependent on the heat transfer modes and severity of the thermal environments. Constraining the displacement of the lower surface in the thickness direction can significantly decrease the TSR of the UHTC plate, which is subject to the thermal shock at the upper surface. In contrast, the TSR of the UHTC plate with simply supported edges or clamped edges around the lower surface is much better.

Original languageEnglish
Pages (from-to)201-210
Number of pages10
JournalApplied Mathematics and Mechanics (English Edition)
Volume36
Issue number2
DOIs
Publication statusPublished - Feb 2015
Externally publishedYes

Keywords

  • Mechanical boundary condition
  • Temperature-dependent material property
  • Thermal environment
  • Thermal shock resistance (TSR)
  • Ultra-high temperature ceramic (UHTC)

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