Accession Number : AD0495804

Title :   The Application of Rate Process Theory to Breaking Glass.

Descriptive Note : Technical rept.,

Corporate Author : UTAH UNIV SALT LAKE CITY

Personal Author(s) : Hodgdon, F. B. ; Stuart, D. A. ; Bjorklund, F. E.

Report Date : 13 JUN 1949

Pagination or Media Count : 13

Abstract : The breaking equation predicts that failures in glass will be failures in tension. The brittle nature of glass can be explained in a qualitative manner by these results. If the strength of the alkali-oxygen and alkaline earth-oxygen bonds is of the same order of magnitude as the free energy of activation of the viscous element bond, a force sufficient to start viscous flow will also be sufficient to rupture these primary bonds.

Descriptors :   (*GLASS, RUPTURE), FAILURE(MECHANICS), MATHEMATICAL ANALYSIS, FRACTURE(MECHANICS), CERAMIC MATERIALS, STRAIN(MECHANICS), STRESSES, LOADS(FORCES), SPRINGS, TEMPERATURE, DEFORMATION, CHEMICAL BONDS, TENSILE PROPERTIES, BRITTLENESS, HEAT RESISTANT GLASS, CREEP.

Subject Categories : Ceramics, Refractories and Glass
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE