Photothermoelastic analysis of bonded propellant grains - A technique for the direct thermal loading of propellant-grain models has been developed and the results obtained for this loading have been compared with those obtained previously using pressure loading

I. M. Daniel*, A. J. Durelli

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

A two-dimensional model of the transversal cross section of a bonded rocket propellant grain was subjected to uniform and steady thermal loading and, alternatively, to mechanically applied uniform radial displacements on the outer boundary. The optimization of perforation contours (attained in previous research programs by applying uniform pressure on the outer boundary of the grain model) was confirmed for both types of thermal loading. The concentration factor at the fillets of the inner contour was determined. An attempt was made to predict the maximum strain in the actual propellant subjected to the same thermal conditions. The material used for the model was a urethane rubber. The thermoelastic properties of the model material were determined.

Original languageEnglish (US)
Pages (from-to)97-104
Number of pages8
JournalExperimental Mechanics
Volume1
Issue number3
DOIs
StatePublished - Mar 1 1961

ASJC Scopus subject areas

  • Aerospace Engineering
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Photothermoelastic analysis of bonded propellant grains - A technique for the direct thermal loading of propellant-grain models has been developed and the results obtained for this loading have been compared with those obtained previously using pressure loading'. Together they form a unique fingerprint.

Cite this