Failure Behavior Modeling : Towards a Better Characterization of Product Failures

• Main Authors: Z. Zeng, Y. Chen, R. Kang
• Format: Article
• Language: English
• Published: AIDIC Servizi S.r.l. 2013-07-01
• Series: Chemical Engineering Transactions
• Online Access: https://www.cetjournal.it/index.php/cet/article/view/6303

The characterization of failures is a crucial part of a prognostics and health management (PHM) program. Field failures of products often result from multiple failure mechanisms acting simultaneously. To better characterize them, it is necessary to understand both the failure mechanisms and the interactions among them. To achieve this aim, a framework for failure behavior modeling is presented in this paper. The framework builds the model from two aspects: modeling of individual failure mechanisms and of the interactions among them. For ease of the framework’s application, the approaches for mechanism modeling and interaction modeling are discussed in details. Some commonly encountered failure mechanism models and frequently used interactive relationships are also presented with illustrative examples.