Multi-metric model-based structural health monitoring

Hongki Jo; B. F. Spencer Jr.

doi:10.1117/12.2045126

10 April 2014 Multi-metric model-based structural health monitoring

Hongki Jo, B. F. Spencer Jr.

Proceedings Volume 9061, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2014; 90611F (2014) https://doi.org/10.1117/12.2045126
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2014, San Diego, California, United States

Abstract

ABSTRACT The inspection and maintenance of bridges of all types is critical to the public safety and often critical to the economy of a region. Recent advanced sensor technologies provide accurate and easy-to-deploy means for structural health monitoring and, if the critical locations are known a priori, can be monitored by direct measurements. However, for today’s complex civil infrastructure, the critical locations are numerous and often difficult to identify. This paper presents an innovative framework for structural monitoring at arbitrary locations on the structure combining computational models and limited physical sensor information. The use of multi-metric measurements is advocated to improve the accuracy of the approach. A numerical example is provided to illustrate the proposed hybrid monitoring framework, particularly focusing on fatigue life assessment of steel structures.

Citation Download Citation

Hongki Jo and B. F. Spencer Jr. "Multi-metric model-based structural health monitoring", Proc. SPIE 9061, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2014, 90611F (10 April 2014); https://doi.org/10.1117/12.2045126

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