Title :
Optical Materials Submicrostrain Test Apparatus
Author :
Woods, W. William
Author_Institution :
The Boeing Company Seattle, Wash. 98124
fDate :
3/1/1969 12:00:00 AM
Abstract :
A torsional testing facility is described for the measurement of the delayed elastic (viscoelastic) and nonrecoverable (plastic) strains in materials in the region of 10-5 to 10-10 strain. The measurements obtained find applicability in the design and construction of large, diffraction-limited reflecting optics. Representative experimental data are presented.
Keywords :
Capacitive sensors; Delay; Elasticity; Extraterrestrial measurements; Materials testing; Optical materials; Optical sensors; Strain measurement; System testing; Viscosity;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
DOI :
10.1109/TAES.1969.309921
