Journal
Publisher
SPIE-INT SOC OPTICAL ENGINEERING
DOI: 10.1117/12.2296328
Keywords
defect detection; electromagnetic wave; mechanical wave; nondestructive characterization; structural integrity; tomography method; wood structure
Categories
Funding
- Innovation and Technology Commission - Innovation and Technology Fund (ITF) [ITS/116/15]
- Research Grants Council (RGC) in Hong Kong through the General Research Fund (GRF) [11255616]
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The structural integrity of wood building element plays a critical role in the public safety, which requires effective methods for diagnosis of internal damage inside the wood body. Conventionally, the non-destructive testing (NDT) methods such as X-ray computed tomography, thermography, radar imaging reconstruction method, ultrasonic tomography, nuclear magnetic imaging techniques, and sonic tomography have been used to obtain the information about the internal structure of wood. In this paper, the applications, advantages and disadvantages of these traditional tomography methods are reviewed. Additionally, the present article gives an overview of recently developed tomography approach that relies on the use of mechanical and electromagnetic waves for assessing the structural integrity of wood buildings. This developed tomography reconstruction method is believed to provide a more accurate, reliable, and comprehensive assessment of wood structural integrity.
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