The behaviour of glass under impact: theoretical considerations

GT V9 1968 089-100

When glass is broken by impact, failure may be initiated either by thejlexural stresses or by the bearing stresses. The former may be calculated by the Tuckerman formula, as amended by Preston, the latter by the formulae of Hertz. Both types of stress have normally to be considered, and not merely one.

J. L. Glathart, F. W. Preston