The Effect Shape on the Thermal Endurance of Glass Rods.

JSGT 1943 V27 T005-T017

An examination of published experimental work on the thermal endurance of glass rods makes it possible to deduce a general relationship between thermal endurance and radius. The expression is derived from the results of tests on borosilicate and on soda–lime–silica glasses, and on others of coefficient of thermal expansion intermediate between these. The experimental results are also used to prepare a table showing the relative maximum stresses developed in rods of different radius subjected to the same thermal shock.

J. B. Murgatroyd