Feasibility of Model-Assisted Probability of Detection Principles for Structural Health Monitoring Systems Based on Guided Waves for Fiber-Reinforced Composites
| Autor: | Maria Moix-Bonet, Inka Mueller, Jochen Moll, Kilian Tschöke, Mikhail V. Golub, Ramanan Sridaran Venkat, Lars Schubert, Vittorio Memmolo, Yevgeniya Lugovtsova |
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| Rok vydání: | 2021 |
| Předmět: |
Guided wave testing
Acoustics and Ultrasonics business.industry Computer science Computers Transducers Automotive industry Reproducibility of Results Model-Assisted Probability of Detection Statistical power Reliability engineering Structural Health Monitoring Nondestructive testing Component (UML) Feasibility Studies Ultrasonic sensor Structural health monitoring Guided Waves Electrical and Electronic Engineering business Instrumentation Reliability (statistics) Probability of Detection Probability |
| Zdroj: | IEEE transactions on ultrasonics, ferroelectrics, and frequency control. 68(10) |
| ISSN: | 1525-8955 |
| Popis: | In many industrial sectors, structural health monitoring (SHM) is considered as an addition to nondestructive testing (NDT) that can reduce maintenance effort during the lifetime of a technical facility, structural component, or vehicle. A large number of SHM methods are based on ultrasonic waves, whose properties change depending on structural health. However, the wide application of SHM systems is limited due to the lack of suitable methods to assess their reliability. The evaluation of the system performance usually refers to the determination of the probability of detection (POD) of a test procedure. Up until now, only a few limited methods exist to evaluate the POD of SHM systems, which prevents them from being standardized and widely accepted in the industry. The biggest hurdle concerning the POD calculation is the large number of samples needed. A POD analysis requires data from numerous identical structures with integrated SHM systems. Each structure is then damaged at different locations and with various degrees of severity. All of these are connected to high costs. Therefore, one possible way to tackle this problem is to perform computer-aided investigations. In this work, the POD assessment procedure established in NDT according to the Berens model is adapted to guided wave-based SHM systems. The approach implemented here is based on solely computer-aided investigations. After efficient modeling of wave propagation phenomena across an automotive component made of a carbon-fiber-reinforced composite, the POD curves are extracted. Finally, the novel concept of a POD map is introduced to look into the effect of damage position on system reliability. |
| Databáze: | OpenAIRE |
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