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Smart Structures and Systems
  Volume 30, Number 6, December 2022 , pages 649-659

Dynamic deformation measurement in structural inspections by Augmented Reality technology
Jiaqi Xu, Elijah Wyckoff, John-Wesley Hanson, Derek Doyle and Fernando Moreu

    Structural Health Monitoring (SHM) researchers have identified Augmented Reality (AR) as a new technology that can assist inspections. Post-seismic structural inspections are conducted to evaluate the safety level of the damaged structures. Quantification of nearby structural changes over short-term and long-term periods can provide building inspectors with information to improve their safety. This paper proposes a Time Machine Measure (TMM) application based on an Augmented Reality (AR) Head-Mounted-Device (HMD) platform. The primary function of TMM is to restore the saved meshes of a past environment and overlay them onto the real environment so that inspectors can intuitively measure dynamic structural deformation and other environmental movements. The proposed TMM application was verified by demo experiments simulating a real inspection environment.
Key Words
    augmented reality; deformation measurement; inspection; structural health monitoring; virtual images
(1) Jiaqi Xu, John-Wesley Hanson, Fernando Moreu:
Department of Civil, Construction & Environmental Engineering, University of New Mexico, Albuquerque, NM, USA;
(2) Elijah Wyckoff:
Department of Mechanical Engineering, University of New Mexico, Albuquerque, NM, USA;
(3) Derek Doyle:
Air Force Research Laboratory, Space Vehicles Directorate, Kirtland Air Force Base, Albuquerque, NM, USA.

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