Influence of crack on the damping properties of recycled concrete

Tan, Li; Singh, Amardeep

doi:10.1016/j.conbuildmat.2021.125324

Cited by 3 publications

(1 citation statement)

References 19 publications

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“…These features serve as indicators for estimating the severity of degraded structures. 47 The modal analysis finds applications in detecting delamination in composite laminates, 48 cracks in concrete structures, 49 looseness in bolted joints, 50,51 etc. In general, modal analysis is performed using (a) the impact hammer method and (b) the vibration shaker method.…”

Section: Overview Of Traditional Methods For Looseness Detection Of B...mentioning

confidence: 99%

Review on recent advances in structural health monitoring paradigm for looseness detection in bolted assemblies

Chelimilla

Chinthapenta

Kali

et al. 2023

Structural Health Monitoring

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The integrity of bolted joints is still a challenging problem owing to the gross or localized slip at the interfacial surfaces of the joints when subjected to external disturbances such as vibrations. This slip escalates the interfacial movement and, thus, leads to a decrease in preload levels, that is, looseness of the bolted assemblies. In the last decade, modal analysis, wave propagation, and percussion methods were traditionally used to detect looseness in bolted connections. With an increase in computational power, machine learning algorithms such as neural networks, random forests, decision trees, and support vector machines complemented the traditional methods in accurate looseness estimation. Subsequently, this integration paved the path for real-time health monitoring of bolted joints. This paper summarizes recent investigations on looseness detection in bolted assemblies based on traditional methods and machine learning algorithms. The working principle, advantages, challenges, and applications of the aforementioned methods are also detailed in this paper. Apart from these investigations, the latest studies on the Internet of Things-based health monitoring of structures are also reviewed to explore their adaptability in remote monitoring of bolted connections for damage detection in the future.

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