Efficient CUF-based FEM analysis of thin-wall structures with Lagrange polynomial expansion

Xu, Xiangyang; Fallahi, Nasim; Yang, Hao

doi:10.1080/15376494.2020.1818331

Cited by 50 publications

(7 citation statements)

References 29 publications

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“…For example, Goodier [7] and Howland et al [8] generated a thin plate containing circular holes, and the inverse method was used to solve the problem. Considering the variety of Karst caves and the complexity of loading conditions, Xu et al [9][10][11] performed a novel method and vision measurement system to monitor the component of stress. Taking into the spatial geometric characteristics of Karst caves, Xie et al [12,13] provided an analytical solution which could represent the spatial characteristics of stress distribution around a shallow buried Karst cave containing fill materials in limestone strata.…”

Section: Introductionmentioning

confidence: 99%

Study on a Quantitative Indicator for Surface Stability Evaluation of Limestone Strata with a Shallowly Buried Spherical Karst Cave

et al. 2022

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This paper developed a quantitative evaluation necessary to ensure ground stability, so a quantitative indicator (bearing capacity). A homogeneous axisymmetric model was generated, considering China’s stress field and the Karst topography characteristics, simultaneously obtaining stress component expression. We then determined the bearing capacity calculation formula by combining the strength theory of shear failure and the stress component expressions. Finally, the comparison of the bearing capacity calculation results between theoretical analysis and a numerical simulation indicated that the error was less than 5%, and the result verified the rationality of the formula.

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Section: Introductionmentioning

confidence: 99%

Study on a Quantitative Indicator for Surface Stability Evaluation of Limestone Strata with a Shallowly Buried Spherical Karst Cave

et al. 2022

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“…Recently, the importance of this technology has been highlighted due to the development of related technologies, an expansion of fields where it can be applied, and increases in efficiency. In particular, various sensor-related technologies based on low power are expanding WSN applications to private sectors, including large-scale manufacturing, defense areas aimed at monitoring, natural disaster response, and social safety nets [1][2][3]. An example of a sensor network use case in the defense field is an unmanned boundary system using Ubiquitous Sensor Network (USN) technology.…”

Section: Introductionmentioning

confidence: 99%

“…The general physical configuration of the sensor network system applied to SRSN consists of a sensor node, base station (BS) or sinkhole, and a database/web server that collects necessary data, as shown in Figure 1. The sensor node performs the function of transmitting data to the BS after obtaining information such as magnetic, acoustic, vibration, and temperature readings [2,3].…”

Section: Introductionmentioning

confidence: 99%

“…transmitting data to the BS after obtaining information such as magnetic, acoustic, vibration, and temperature readings [2,3]. The physical configuration of a typical WSN system is as follows: Sensor nodes that transmit data directly to the BS are classified as routers or gateways, and sensor nodes that transmit data to the routers or gateways are classified as end nodes.…”

Section: Introductionmentioning

confidence: 99%

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Wireless Sensor Network (WSN) Configuration Method to Increase Node Energy Efficiency through Clustering and Location Information

Lee

Hong²,

Shin

2021

Symmetry

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Wireless Sensor Network (WSN) technology, for services that are difficult to access or which need to be continuously monitored regardless of location, needs further research and development due to an expansion of fields where it can be applied and due to increases in efficiency. In particular, in the field of defense, research on the latest IT technologies including sensor networks is being actively conducted as an alternative to the risky use of personnel in areas such as surveillance and surveillance reconnaissance. This paper experimented with analyzing the conditions necessary for increasing the energy efficiency of the nodes constituting a sensor network using a clustering routing technique and a location-based routing technique. The derived factors include a method for selecting a cluster head (CH), a method for establishing a path from each channel to a base station (BS), and a method for transmitting collected data. We experimented with the derived factors and proposed a WSN configuration method that increases the energy efficiency of each node by applying optimal results and methods that were verified experimentally.

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“…It encompasses the application of mesh generation by dividing a complex problem into small ones, as well as using software that is coded with an FEM algorithm. It allows one to model, analyze and design structures of various materials, e.g., the steel structures, among others [29][30][31][32][33].…”

Section: Introductionmentioning

confidence: 99%

Modeling of Curvilinear Steel Rod Structures Based on Minimal Surfaces

Dzwierzynska

Labuda

2021

Materials

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The article deals with shaping effective curvilinear steel rod roof structures using genetic algorithms by implementing them for the analysis of various case studies in order to find new and efficient structures with positive characteristics. The structures considered in this article are created on the basis of the Enneper surface and minimal surfaces stretched on four arcs. On the Enneper surface, a single layer grid is used, while on the other surfaces, two-layer ones. The Enneper form structure with four supports and the division into an even number of parts along the perimeter of the covered place proved to be the most efficient, and the research showed that small modifications of the initial base surface in order to adapt the structure to the roof function did not significantly affect its effectiveness. However, the analysis and comparison of single and double-shell rod structures based on minimal surfaces stretched on four arcs have shown that a single-shell structure is much more effective than a double one. The paper considers the theoretical aspects of shaping effective structures, taking their masses as the optimization criterion. The optimization helped to choose the best solutions due to structures’ shapes and topologies. However, the obtained, optimized results can find practical applications after conducting physical tests.

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Efficient CUF-based FEM analysis of thin-wall structures with Lagrange polynomial expansion

Cited by 50 publications

References 29 publications

Study on a Quantitative Indicator for Surface Stability Evaluation of Limestone Strata with a Shallowly Buried Spherical Karst Cave

Study on a Quantitative Indicator for Surface Stability Evaluation of Limestone Strata with a Shallowly Buried Spherical Karst Cave

Wireless Sensor Network (WSN) Configuration Method to Increase Node Energy Efficiency through Clustering and Location Information

Modeling of Curvilinear Steel Rod Structures Based on Minimal Surfaces

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