Stress conditions in selectively polished glass fibres
JSGT 1957 V41 T289-T294
The existence of tension stresses in polished glass surfaces was shown by selectively polishing glass fibres. The bend of the polished fibres was concave on the polished surface and rough calculations indicated tension stresses as high as 3000 lb/in2 in the polishing film. About one third of the bow remained in fibres heated above the annealing point. Polished fibres disclosed a slight increase in softening point whereas fibres soaked in water showed a decrease.
W. C. Levengood
