Mobile and wearable devices embedded with multiple sensors for health monitoring and
disease diagnosis are growing fields with the potential to provide efficient means for remote …

Loosening of threaded fasteners can cause preload decline, induce bolt fatigue fracture, and
severely compromise the reliability of mechanical products. Loosening detection is an …

In this study, a quasi-autonomous vision-based method is newly proposed for detecting
loosened bolts in critical connections. The main idea of the approach is to estimate the …

Pre-stressed bolted joints are widely used in civil structures and industries. The tightening
force of a bolt is crucial to the reliability of the joint connection. Loosening or over-tightening …

Concrete-filled steel tubular (CFST) structures are essential load-bearing components in
many civil engineering structures. Subsurface voids between the contacting surface of the …

In this study, we investigate a novel idea of using synthetic images of bolts which are
generated from a graphical model to train a deep learning model for loosened bolt detection …

Precise measurement of bolt preload force is particularly important in the assembly process
of aviation equipment, which is directly related to the normal working performance and …

Concrete structures with various reinforcements, such as steel bars, composite material
tendons, and recently steel plates, are commonly used in civil infrastructures. When an …

The void defects significantly threaten the integrity of concrete-filled steel tubular (CFST)
structure. Along with detecting the presence of subsurface voids, the knowledge of the …

As an innovative technology, the impedance-based technique has been extensively studied
for the structural health monitoring (SHM) of various civil structures. The technique's …