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International Journal of Corrosion
Volume 2016, Article ID 1343587, 7 pages
Research Article

A Probabilistic Physics of Failure Approach for Structure Corrosion Reliability Analysis

1School of Mechatronics Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
2Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang 621000, China

Received 14 January 2016; Revised 7 April 2016; Accepted 5 June 2016

Academic Editor: Ramana M. Pidaparti

Copyright © 2016 Chaoyang Xie and Hong-Zhong Huang. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Corrosion is recognized as one of the most important degradation mechanisms that affect the long-term reliability and integrity of metallic structures. Studying the structural reliability with pitting corrosion damage is useful for risk control and safety operation for the corroded structure. This paper proposed a structure corrosion reliability analysis approach based on the physics-based failure model of pitting corrosion, where the states of pitting growth, pit-to-crack, and cracking propagation are included in failure model. Then different probabilistic analysis methods such as Monte-Carlo Simulation (MCS), First-Order Reliability Method (FORM), Second-Order Reliability Method (SORM), and response surface method are employed to calculate the reliability. At last, an example is presented to demonstrate the capability of the proposed structural reliability model and calculating methods for structural corrosion failure analysis.