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    Item type:Publication, Access status: without files ,
    An embedded physics-based modeling concept for wireless structural health monitoring
    (2022-09)
    Dragos, Kosmas
    ;
    Smarsly, Kay
    Traditional structural health monitoring (SHM) practices dictate centralized collection and pro- cessing of structural response data. The centralized paradigm, however, may be impractical for wireless SHM systems on account of the limited power autonomy of wireless sensor nodes, the limited reliability of wireless communication, and the centralized data repository bearing the risk of becoming a “single point of failure”. Considering the limitations of wireless SHM systems and focusing on avoiding centralized data collection, this paper presents an embedded physics-based modeling concept for wireless SHM systems in form of a work-in- progress report. The idea behind the proposed concept is to exploit the processing capabilities of wireless sensor nodes and the analysis capabilities of physics-based models in structural engineering to obtain estimates of structural conditions that cannot be derived from data-driven models. A major challenge of the embedded phys- ics-based concept is to ensure that the merits of embedding physics-based models undeniably outweigh the centralized collection and offline analysis of structural response data. To this end, the quality of embedded physics-based models is tested with respect to performance. Upon presenting the embedded physics-based con- cept, future work on potential implementation of the concept into wireless SHM systems are discussed.
    Publicationtype: Conference Paper
      22
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    Item type:Publication, Access status: without files ,
    Sustainable structural health monitoring using e-waste and recycled materials
    (2022-09)
    Peralta Abadia, Patricia
    ;
    Smarsly, Kay
    With the apparent effects of climate change, sustainability has come to the forefront in civil engineering, aiming for reliable systems and structures of low environmental impact. However, the market for electronic devices is growing rapidly, generating a non-negligible amount of electronic waste (e-waste). Components in e-waste, such as sensors from disposed electronic devices, may be recycled and reused in structural health monitoring (SHM) systems. In this paper, the design and implementation of a sustainable wireless SHM system composed of e-waste and recycled materials is presented. The sustainable SHM system is validated in field tests on a pedestrian bridge using a conventional wireless SHM system as benchmark. As a result, it is demonstrated that e-waste components and recycled materials are viable alternatives to implement sustainable SHM systems. With sustainable SHM systems, a contribution to minimize the environmental impact of the devices may be achieved.
    Publicationtype: Conference Paper
      49