Analysis of brittle fracture of soda glass bottles under hydrostatic pressure
- 128 Downloads
Imperfections in glass formed during manufacture or subsequent transportation can weaken bottles, creating a hazard by causing them to fail at lower pressure. When soda glass bottles are pressurized to fracture, the crack density in the broken glass and the fracture pressure are highly correlated. A higher fracture pressure yields a higher crack density as a result of the greater amount of stored energy released on fracture. Thus, after failure it is possible to estimate the pressure to which a bottle was subjected by analyzing the glass fragments. The crack patterns and density agree with analytical models for crack branching in brittle materials under stress. The crack patterns of pressurized bottles subjected to impact are also observed, and a minimum side impact velocity of 2.0 m/s for rupture of pressurized commercial soda glass bottles is determined.
Keywordsbrittle fracture crack branching crack density
Unable to display preview. Download preview PDF.
- 2.S.J. Schneider, Jr.: Ceramics and Glasses, vol. 4, Engineered Materials Handbook, ASM International, 1991, p. 1217.Google Scholar
- 3.J.J. Mecholsky, S.W. Freiman, and R.W. Rice: “Fractographic Analysis of Ceramics,” Fractography in Failure Analysis, ASTM STP645, B.M. Strauss and W.H. Culle, Jr., ed., ASTM, W. Conshohocken, PA, 1978, pp. 363–79.Google Scholar
- 4.R.W. Rice: “Ceramic Fracture Features, Observations, Mechanisms, and Uses,” Fractography of Ceramic and Metal Failures, ASTM STP827, J.J. Mecholsky, Jr. and S.R. Powell, ed., ASTM, W. Conshohocken, PA, 1984, pp. 5–103.Google Scholar
- 5.D.R. Lide: CRC Handbook of Chemistry and Physics, 83rd ed., CRC Press, Inc., 2002.Google Scholar