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Proceedings Paper

Log-periodic time-to-failure analysis
Author(s): Didier Sornette
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Paper Abstract

We propose that heterogeneous systems fail by exhibiting a critical behavior, characterized by the presence of log- periodic patterns. This prediction has been tested extensively during our continuing collaboration with the French Aerospace company Aerospatial on gas pressure tanks embarked on the European Ariane rockets. Our theory was applied to about 50 pressure-tanks and the results indicate that a precision of a few percent in the determination of the stress at rupture. This non-destructive evaluation technique is now used routinely in the qualifying procedure of the industrial fabrication process. We provide an introduction to the underlying theory, the physical mechanisms, as well as to generalization to other systems.

Paper Details

Date Published: 28 January 1999
PDF: 11 pages
Proc. SPIE 3586, Nondestructive Evaluation of Aging Aircraft, Airports, and Aerospace Hardware III, (28 January 1999); doi: 10.1117/12.339885
Show Author Affiliations
Didier Sornette, Univ. of California/Los Angeles, CNRS, and Univ. de Nice-Sophia Antipolis (United States)


Published in SPIE Proceedings Vol. 3586:
Nondestructive Evaluation of Aging Aircraft, Airports, and Aerospace Hardware III
Ajit K. Mal, Editor(s)

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