DEVELOPMENT OF EXPERIMENTAL STRESS ANALYSIS METHODS TO DETERMINE STRESSES AND STRAINS IN SOLID PROPELLANT GRAINS. EXPERIMENTAL ANALYSIS OF HIGH FREQUENCY STRESS WAVES IN A RING.
Technical rept. Jan-Nov 68,
CATHOLIC UNIV OF AMERICA WASHINGTON D C SCHOOL OF ENGINEERING AND ARCHITECTURE
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The paper deals with the photoelastic analysis of stress waves in a thick ring subjected to transient, high frequency loading the device used to apply the loading is a piezo-electric transducer. Photoelastic data is supplemented by measurements obtained with a capacitance gage used as a dynamic lateral extensometer. A wave interpretation of the data is developed and comparisons are made with available solutions of related problems. Author