Machine Learning and Anomaly Detection Algorithms for Damage Characterization From Compliance Data in Three-Point Bending Fatigue

Autor:	Jakob Zeitler, Volker Weiss, Subodh Kalia, Chilukuri K. Mohan
Rok vydání:	2021
Předmět:	Stress (mechanics) Mechanics of Materials Computer science Three point flexural test Multilayer perceptron Anomaly detection Safety Risk Reliability and Quality Algorithm Civil and Structural Engineering Characterization (materials science)
Zdroj:	Journal of Nondestructive Evaluation, Diagnostics and Prognostics of Engineering Systems. 4
ISSN:	2572-3898 2572-3901
Popis:	Three-point bending fatigue compliance datasets of multi-layer fiberglass-weave/epoxy test specimens, including 5 and 10 mil interlayers, were analyzed using artificial intelligence (AI) methods along with statistical analysis, revealing the existence of three different compliance-based damage modes. Anomaly detection algorithms helped discover damage indicators observable in short intervals (of 50 cycles) in the compliance data, whose patterns vary with the material and the number of load cycles to which the material is subjected. Machine learning algorithms were applied using the compliance features to assess the likelihood that material failure may occur within a certain number of future loading cycles. High accuracy, precision, and recall rates were achieved in the classification task, for which we evaluated several algorithms, including various variations of neural networks and support vector machines. Thus, our work demonstrates the utility of AI algorithms for discovering a diversity of damage mechanisms and failures.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1e35353fcad9afed33f42af5f4267930 https://doi.org/10.1115/1.4051903 Zobrazit plný text záznamu