Integrated methodology of structural health monitoring for civil structures

Alla, Suseela; Asadi, S.S.

doi:10.1016/j.matpr.2020.01.435

Cited by 9 publications

(4 citation statements)

References 15 publications

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“…Structural health monitoring technology, which can help improve the reliability and safety of important engineering structures, has become an increasingly important research topic with regards to economic maintenance infrastructure [28]. is innovative method has been identified in civil engineering [29]. Embedded sensors are also used to monitor the dynamic mechanics of concrete.…”

Section: Introductionmentioning

confidence: 99%

Monitoring Soil-Pile Stripping Damage at Different Temperatures via Piezoelectric Ceramic Sensors

Zhu,

Liu,

Wang

et al. 2023

Shock and Vibration

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Large temperature differences exist between the winter and summer seasons in different regions of China. Such temperature differences, caused by seasonal changes, may affect the life cycles of piles. Under natural conditions, such as long-term operation under the ambient environment and loads, piles and the surrounding soil undergo peel damage. To study such peel damage between the pile and soil at different temperatures, we installed concrete test piles in soil and subjected them to different temperatures. A crack with a width of 2 cm, depth of 10 cm, and damage range of 90° was applied at the side of the piles. Furthermore, a horizontal impact load was applied near the top of the pile and a piezoelectric ceramic sensor was used to obtain the stress wave response signals. The experimental results reveal that with a decrease in the soil temperature, the amplitude and fluctuation range of the signals received by the piezoelectric sensor decreased. According to the experimental results, in the group with the greatest influence of temperature, keeping other conditions unchanged and setting different crack depths, the horizontal impact load can also be introduced to observe the frequency change. It can be observed that the larger the crack depth, the smaller the frequency. Finally, ABAQUS was used for simulations, whose results were found to be consistent with those of the experiments. This paper describes a method for determining the safety of soil and piles with peel damage at different temperatures, and it also provides a validation of the necessity of holding the rest constant.

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Section: Introductionmentioning

confidence: 99%

Monitoring Soil-Pile Stripping Damage at Different Temperatures via Piezoelectric Ceramic Sensors

Zhu,

Liu,

Wang

et al. 2023

Shock and Vibration

View full text Add to dashboard Cite

show abstract

“…The performance of in-service mechanical structures such as aerospace and spacecraft, bridge, and ship structures can be affected by degradation resulting from exposure to harsh flight environment conditions or damage resulting from external conditions, such as impact, loading, operator abuse, or neglect [1,2]. In order to improve the safety level of mechanical structures, intelligent health monitoring is researched by devoting to predict the onset of damage and deterioration in mechanical structural conditions with the observation of a system over time using periodically sampled dynamic response measurements from an array of sensors.…”

Section: Introductionmentioning

confidence: 99%

Delphi Collaboration Strategy for Multiagent Optical Fiber Intelligent Health Monitoring System

et al. 2022

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Optical fiber sensors are very attractive in mechanical structure intelligent health monitoring system due to some unique characteristics, such as immunity to electromagnetic interference and to aggressive environments, high sensitive and fast response, small physical dimension, excellent resolution and range, and so on. For improving the accuracy and reliability of the optical fiber intelligent health monitoring system in practical engineering application, the collaboration and decision-making strategy based on Delphi method for multiagent optical fiber intelligent health monitoring system is studied in this paper. The proposed system is mainly composed of optical fiber sensing agent, intelligent evaluation agent, and system collaborative decision-making agent. The intelligent evaluation agent is used to evaluate the health status of the monitored mechanical structures. Delphi method is used by the system collaborative decision-making agent to consult each intelligent evaluation agent. Meanwhile, the collaborative partner selection algorithm is used to select the intelligent evaluation agent participating in the collaboration, and the intelligent evaluation agent that does not participate in the decision-making is dynamically modified by the decision result. The experiment for an aircraft wing box as the typical engineering structure is carried out and the verification system is designed, the decision result is compared with that without dynamic correction of the evaluation result. The comparative results indicate that the evaluation accuracy and reliability of the monitored mechanical structural damage are improved significantly after multiple rounds of collaboration and decision making.

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“…The majority of the constructions such as high rise buildings, large scale sports avenues, tunnels, and offshore platforms face damages due to environmental pollution aspects of physical, chemical, and corrosion processes forming deterioration of concrete structures [5] [6].…”

Section: Introductionmentioning

confidence: 99%

International Journal of Electronics and Telecommunications

Kakade

2022

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Structural health monitoring of aircraft assures safety, integrity and reduces cost-related concerns by reducing the number of times maintenance is required. Under aerodynamic loading, aircraft is subjected to strain, in turn causing damage and breakdown. This paper presents a review of experimental works, which focuses on monitoring strain of various parts of aircraft using optical fibre sensors. In addition, this paper presents a discussion and review on different types of optical fibre sensors used for structural health monitoring (SHM) of aircraft. However, the focus of this paper is on fibre bragg gratings (FBGs) for strain monitoring. Here, FBGs are discussed in detail because they have proved to be most viable and assuring technology in this field. In most cases of strain monitoring, load conditioning and management employs finite element method (FEM). However, more effort is still required in finding the accurate positions in real time where the sensors can be placed in the structure and responds under complex deformation.

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Integrated methodology of structural health monitoring for civil structures

Cited by 9 publications

References 15 publications

Monitoring Soil-Pile Stripping Damage at Different Temperatures via Piezoelectric Ceramic Sensors

Monitoring Soil-Pile Stripping Damage at Different Temperatures via Piezoelectric Ceramic Sensors

Delphi Collaboration Strategy for Multiagent Optical Fiber Intelligent Health Monitoring System

International Journal of Electronics and Telecommunications

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