Thermal response of a spatially graded metal-ceramic structural panel to non-uniform heating in hypersonic flow

Phillip E. Deierling, Olesya I. Zhupanska, Crystal L. Pasiliao

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, the thermal response of metal-ceramic Ti-6Al-4V/TiB2 functionally graded composite structural panels is studied and compared against a Ti-6Al-4V structural panel with an Exelis Acusil® II syntactic foam thermal protection system. Structural panels are subjected to thermal and mechanical loads resulting from hypersonic flight over a representative trajectory. Mechanical loads are the by-product of aggressive maneuvering at high air speeds and angles of attack. Thermal loads as a result of aerodynamic heating are applied to the material systems as laminar, turbulent and transitional heat flux on the outer surface. Transitional heat fluxes are used to evaluate the effectiveness of Ti-6Al-4V/TiB2 graded in two principal directions, e.g., through-thickness and surface parallel to flow. The computational results indicate that when subjected to uniform surface heat flux, the graded material system can eliminate through-thickness temperature gradients that are otherwise present in traditional thermal protection systems. Furthermore, graded material systems can also eliminate through-thickness temperature gradients and significantly reduce in-plane surface temperature gradients when subjected to non-uniform surface aerodynamic heating.

Original languageEnglish (US)
Title of host publication57th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624103926
DOIs
StatePublished - 2015
Externally publishedYes
Event57th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2016 - San Diego, United States
Duration: Jan 4 2016Jan 8 2016

Publication series

Name57th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference

Other

Other57th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2016
Country/TerritoryUnited States
CitySan Diego
Period1/4/161/8/16

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Architecture
  • Mechanics of Materials

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