Biaxial fracture strength of brittle materials /
Henry W. Babel.

Description

Main Author

Babel, Henry W.

Related Names

Air Force Materials Laboratory (U.S.)
United States. Air Force.
Douglas Aircraft Company

Language(s)

English

Published

Wright-Patterson Air Force Base, Ohio : Air Force Materials Laboratory, Research and Technology Division, Air Force Systems Command, United States Air Force, 1966.

Subjects

Brittleness.
Oxides.
Ceramic materials.
Fracture mechanics.
Strength of materials.

Summary

The investigation described herein was conducted to develop an analytical model to accurately predict the biaxial-fracture strengths of brittle materials. A new biaxial-failure criterion has been developed. The new criterion is a flaw-based theory concerned with the influence of spherical and ellipsoidal discontinuities upon the fracture strength of brittle materials. One-hundred and eighteen porous zirconia test specimens were used for the fracture tests. These tests were conducted for uniaxial tension and compression and for two biaxial-stress states in the tension-compression quadrant. A careful analysis was made to develop test conditions that largely circumvented the experimental difficulties encountered by previous investigators. Photoelastic and strain-gage studies were conducted to verify the experimental techniques; the results showed that homogeneous stress fields were developed in the gage area of the test specimens.

Note

"This work was performed by the Douglas Aircraft Company, Inc., Missile and Space System Division, Santa Monica, California."
AD0483689 (from http://www.dtic.mil).
"March 1966."

Physical Description

xiii, 136 pages : illustrations, figures, tables ; 28 cm.

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