### STP1201: Effect of Proof Testing on the Failure Probability of Multiaxially Loaded Ceramic Components

Brückner-Foit, A

Heger, A

*Scientist, University of Karlsruhe, Institute for Reliability and Failure Analysis, *

Munz, D

*Professor, University of Karlsruhe, Institute for Reliability and Failure Analysis, Karlsruhe,*

Pages: 14 Published: Jan 1994

**Abstract**

The effect of proof testing on the probability of fast fracture of ceramic components subject to multiaxial loading is analyzed using multiaxial Weibull theory. A local risk of fracture is defined which corresponds to the probability that failure of the component considered is caused by a flaw located at a given point in the structure. The failure behaviour after proof testing is discussed using two simple examples. It is shown in which way the efficiency of the proof test is related to the local risk of fracture during the proof test and under operating conditions.

**Keywords:**

Reliability, Weibull theory, multiaxial loading, proof testing, local risk of fracture, failure probability

**Paper ID:** STP12792S

**Committee/Subcommittee:** C28.02

**DOI:** 10.1520/STP12792S

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