NEHRP Clearinghouse
- Title
- Failure Prediction Model for Window Glass.
- File
- PB81148421.pdf
- Author(s)
- Beason, W. L.
- Source
- National Science Foundation, Washington, DC. Engineering and Applied Science., May 1980, 224 p.
- Abstract
- An analytical method is presented to predict the strength of window glass plates subjected to lateral loads. The failure prediction model will be used to assess glass plate strength to be used in designing window glass. The model relates the probability of glass plate failure to fundamental glass plate surface properties. It incorporates the following: (1) an analytical representation of the variation of glass strength with different environmental factors; (2) a geometrically nonlinear plate analysis; and (3) a statistical representation of glass plate surface flow properties. The model is formulated so that surface flow proerties are dependent only upon the type and treatment of the glass, and are independent of factors such as plate aspect ration, plate glass surface area, and load duration. Validity of the nonlinear plate analysis, incorporated in the model, was demonstrated by comparison of actual and theoretically derived glass plate stresses and deflections. It also was shown that surface flow parameters employed in the production model are independent of plate response. Hence, the failure prediction model was verified.
- Keywords
- Sheet glass; Predictions; Failure; Window glass; Wind pressure; Glass strength; Plate glass; Earthquake engineering; Loads (Forces); Lateral pressure