Symmetry in Applied Mechanics Analysis on Smart Optical Fiber Sensors II

A special issue of Symmetry (ISSN 2073-8994). This special issue belongs to the section "Engineering and Materials".

Deadline for manuscript submissions: 30 September 2024 | Viewed by 1236

Special Issue Editor

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Guest Editor
College of Civil Engineering and Mechanics, Lanzhou University, Lanzhou 730000, China
Interests: smart optical fiber sensors and applied mechanics analysis; strain transfer analysis of multi-layered composites; smart monitoring, strengthening and assessment of FRP reinforced structures; design method of smart sensors for civil structures; full-scale monitoring, condition assessment and inverse design of pavements; structural health monitoring, damage identification and reinforcement
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Special Issue Information

Dear Colleagues,

Symmetry is an important concept during the mathematical and mechanical modeling of control systems in artificial intelligence domains. When sensors have been used to perceive the structural behavior, symmetry can be used to simplify the theoretical analysis on the strain transfer characteristics of multi-layered sensing models. Taking optical fiber sensor as an example, it can be used to measure strain and temperature information of engineering structures due to the unique advantages of high sensitivity, absolute measurement, stable physical and chemical properties, corrosion resistance, electromagnetic immunity, small size, light weight, and easy integration of sensing networks. It is expected that smart optical fiber sensors can play an important role in promoting the development of artificial intelligence and intelligent manufacturing in engineering. How to use the measured information for the configuration of the structural performance and safety state is also an important issue. Applied mechanics analysis with symmetry is considered significant to scientifically explain the interaction between the smart optical fiber sensor and the monitored structure. For example, the discrete strains measured by the smart sensors can be adopted to configure the shape of the monitored structures with the mathematical algorithm. Based on the given shape, the health state of the structure can be assessed based on the mechanics analysis, which can provide instruction for the damage identification and rehabilitation. Please note that all submitted papers must be within the general scope of the Symmetry journal.

We are soliciting contributions (research and review articles) covering a broad range of topics on smart optical fiber sensors and applied mechanics analysis, including (though not limited to) the following keywords.

Dr. Huaping Wang
Guest Editor

Manuscript Submission Information

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Symmetry is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.


  • smart optical fiber sensor
  • strain and temperature measurement
  • smart structural health monitoring system
  • structural information characterization
  • advanced testing solution
  • applied mechanics analysis
  • interfacial action between the smart sensor and the monitored structure
  • strain transfer analysis
  • microscopic analysis on the interfacial properties
  • the symmetry of multi-layered sensing model

Published Papers (1 paper)

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11 pages, 1906 KiB  
Dynamic Responses of Train-Symmetry-Bridge System Considering Concrete Creep and the Creep-Induced Track Irregularity
by Wenfeng Li, Hongkai Ma, Minglong Wei, Ping Xiang, Fang Tang, Binwei Gao and Qishi Zhou
Symmetry 2023, 15(10), 1846; - 29 Sep 2023
Viewed by 755
This work considers the influence of concrete creep on track irregularities and establishes the dynamic motion equation of the train-track-bridge coupling system. The track irregularity is obtained by superposition of the initial geometric irregularity and additional geometric irregularity of the steel rail caused [...] Read more.
This work considers the influence of concrete creep on track irregularities and establishes the dynamic motion equation of the train-track-bridge coupling system. The track irregularity is obtained by superposition of the initial geometric irregularity and additional geometric irregularity of the steel rail caused by creep. When high-speed railway trains pass through bridges; the vertical acceleration and vertical displacement of continuous beam bridges are related to the train’s operating speed, and the influence of creep camber is relatively small. At the same time, considering the randomness of track irregularities, the dynamic responses of the train track bridge coupling system under the action of random track irregularities are analyzed, and the dynamic responses of trains at different operating speeds are obtained. The deterministic and uncertain dynamic responses of the train track bridge system were compared and analyzed to verify the accuracy of the Karhunen Loéve expansion (KLE)-Point estimate method (PEM) calculation results. The results indicate that the random characteristics of track irregularities have a significant impact on train dynamic response. Based on the random system vibration analysis and considering the safety and comfort indicators of high-speed railway trains, the creep deformation limit of a continuous beam bridge with a length of 48 m + 80 m + 48 m is obtained to be 19 mm. This is the first time that the dynamic responses of train-symmetry-bridge system are calculated by considering concrete creep and the creep-induced track irregularity, which has certain significance for understanding the dynamics of train -bridge system. In addition, the proposed creep threshold is also of great significance to ensure the safety of traveling. Full article
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