A Dynamic Measuring Technique for Bulk Stiffness Constants as a Function of Temperature and Microstructure for U-6 wt pct Nb

Autor:	G. M. Ludtka, A. Wolfenden, D. R. Lowry
Rok vydání:	1990
Předmět:	Materials science Mechanical Engineering Stiffness Young's modulus Condensed Matter Physics Microstructure Poisson's ratio Shear modulus symbols.namesake Mechanics of Materials symbols medicine Composite material Elasticity (economics) medicine.symptom Elastic modulus
Zdroj:	Journal of Applied Mechanics. 57:292-297
ISSN:	1528-9036 0021-8936
DOI:	10.1115/1.2891988
Popis:	Measurements of dynamic Young’s modulus (E) and shear modulus (G) have been made with the piezoelectric ultrasonic composite oscillator technique (PUCOT) on gamma solution heat treated specimens of U-6 wt pct Nb at 80 and 40 kHz, respectively. Three aging conditions were employed to permit measurements for four different microstructures from ambient to 647°C. Values of Poisson’s ratio (ν) were calculated from the measured values of E and G. The extreme ranges for E, G and ν extended from 171 to 55 GPa, from 66 to 17 GPa, and from 0.09 to 0.70, respectively.
Databáze:	OpenAIRE
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