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Symmetry
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Symmetry in the Finite Element Method and Finite Element Analysis
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Symmetry in the Finite Element Method and Finite Element Analysis

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

Deadline for manuscript submissions: closed (30 November 2023) | Viewed by 5786

Special Issue Editors

Dr. Rafał Grzejda

E-Mail Website
Guest Editor
Department of Mechanics, West Pomeranian University of Technology, 19 Piastow Ave., 70-310 Szczecin, Poland
Interests: finite element method; bolted joint; contact joint; mechanical engineering; bolt; connections in mechanical engineering; mechanical gears; strength of materials; mechanics
Dr. Minglin Li

E-Mail Website
Guest Editor
School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350116, China
Interests: research and application of physical and mechanical properties of low-dimensional nanomaterials; structural design and strength analysis of mechanical engineering equipment; research and development of medical equipment

Special Issue Information

Dear Colleagues,

In addition to experimental research, mechanical engineering is now also focusing on assessing the behavior of various engineering structures through the use of computational methods and the adoption of FE tools.

This Special Issue in Symmetry will focus on critical findings, advances, and applications of the finite element method in all mechanical engineering fields. Papers related to new developments of finite element analysis in relation to theoretical, computational, and modeling techniques and their applications in science and technology will be considered.

Papers that cover a wide range of issues are expected, including (but not limited to):

  1. Finite element analysis;
  2. Structural health monitoring;
  3. Connections in mechanical engineering;
  4. Deformation analysis;
  5. Geometric modeling.

Dr. Rafał Grzejda
Dr. Minglin Li
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

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.

Keywords

  • finite element method
  • structural health monitoring
  • structures
  • deformations
  • stresses
  • mechanical properties
  • numerical methods

Published Papers (3 papers)

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Research

19 pages, 6888 KiB  
Article
Analysis of Consolidation by Vertical Drain with Vacuum Preloading Based on Axisymmetric Biot’s Consolidation Theory
by Xiaodong Pan, Haijun Zhu, Huailin Zheng, Honglei Sun and Xueyu Geng
Symmetry 2023, 15(6), 1245; https://doi.org/10.3390/sym15061245 - 12 Jun 2023
Viewed by 1006
Abstract
A model of consolidation for a single-drain well under vacuum preloading, based on Biot’s axisymmetric theory and considering the “real strain” hypothesis, was established using the finite element method. Degenerating the consolidation equation of real strain yielded the Barron’s classical free strain and [...] Read more.
A model of consolidation for a single-drain well under vacuum preloading, based on Biot’s axisymmetric theory and considering the “real strain” hypothesis, was established using the finite element method. Degenerating the consolidation equation of real strain yielded the Barron’s classical free strain and equal strain equations. The free strain and equal strain finite element models were derived by imposing boundary and constraint conditions on the real strain FEM model. The validation of the simulation process confirmed that the numerical model achieved consistent outcomes, with the theoretical values postulating its effectiveness. The real strain model revealed the Mandel–Cryer effect of soil near the vertical drain during the initial vacuum preloading consolidation process, causing the effective stress to increase more than the effective stress generated by the vacuum pressure and leading to a greater reduction in the void ratio. This phenomenon is one of the reasons for clogging during the vacuum preloading process. However, the free strain and equal strain models cannot produce this effect because they cannot describe the coupling between soil deformation and fluid flow. The parameter analysis of the real strain model showed that as Poisson’s ratio for soil decreased, the consolidation rate of soil also decreased, while the Mandel–Cryer effect of soil increased. Full article
(This article belongs to the Special Issue Symmetry in the Finite Element Method and Finite Element Analysis)
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19 pages, 8142 KiB  
Article
Symmetrically Construction Monitoring Analysis and Completed State Evaluation of a Tied Steel Box Arch Bridge Based on Finite Element Method
by Jian Pan, Xirui Wang, Kainan Huang and Wensheng Wang
Symmetry 2023, 15(4), 932; https://doi.org/10.3390/sym15040932 - 18 Apr 2023
Cited by 1 | Viewed by 2166
Abstract
Because of their beautiful appearance, strong crossing ability, and reasonable stress performance, the application of tied steel box arch bridges is becoming more and more extensive. Bridge construction monitoring can control and adjust the deviation state to ensure the stress and linear state [...] Read more.
Because of their beautiful appearance, strong crossing ability, and reasonable stress performance, the application of tied steel box arch bridges is becoming more and more extensive. Bridge construction monitoring can control and adjust the deviation state to ensure the stress and linear state of the bridge after completion. This study carried out a symmetrical construction monitoring analysis and completed state evaluation of the newly built Dafeng River Bridge in Guangxi Province based on the finite element method. MIDAS Civil finite element software is used for simulation analysis to calculate the deformation and stress of the tied steel box arch bridge at the construction and completion stages. The tensile and compressive stress of the main arch and transverse brace, as well as the cumulative displacements of the main arch and lattice beam, are symmetrically distributed. The maximum tensile and compressive stresses are 15.1 MPa and 74.6 MPa, respectively, less than the specification’s allowable value. Meanwhile, for the completed bridge under the loading combinations of serviceability limit state and bearing capacity ultimate limit state, the stress of the main arch, transverse brace, and lattice beam meets the specification requirements. The maximum cable forces of the suspender and tie rod under the bearing capacity ultimate limit state are 2189.4 kN and 2991.2 kN, and their corresponding minimum safety factors are 3.2 and 2.7. In addition, the deviations between the on-site monitoring and the finite element theoretical values are within the specification allowable range for the cable force of the suspender and tie rod and the bridge deck alignment. It indicates that the bridge construction monitoring effect is reasonable and ideal, and the symmetrically finite element simulation analysis can provide a theoretical basis for construction monitoring. Full article
(This article belongs to the Special Issue Symmetry in the Finite Element Method and Finite Element Analysis)
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20 pages, 7199 KiB  
Article
Deformation of Sandy Ground Induced by Tunneling of Super-Large-Diameter Shield—Influence of Buried Depth of Tunnel and Relative Density of Sand
by Jiquan Li, Xiaolu Li, Yuqin Wen and Dong Su
Symmetry 2023, 15(1), 71; https://doi.org/10.3390/sym15010071 - 27 Dec 2022
Viewed by 1441
Abstract
The mechanical properties of sandy soil depend on both the confining pressure and the state of compactness. Therefore, both the buried depth of the tunnel and the relative density of the sand are key factors that affect the ground deformation induced by the [...] Read more.
The mechanical properties of sandy soil depend on both the confining pressure and the state of compactness. Therefore, both the buried depth of the tunnel and the relative density of the sand are key factors that affect the ground deformation induced by the tunneling of a super-large-diameter shield. In this study, the parameters of the SANISAND constitutive model are first calibrated based on triaxial test data for Foshan silty fine sand. Then, based on the actual project, a two-dimensional finite-element analysis model is established to investigate the ground deformation induced by the tunneling of a super-large-diameter shield. The width and maximum value of the settlement trough, the volume loss ratio, and the deformation characteristics of the soil are summarized and analyzed for 13 cases. The results show that as the ratio of the buried depth to the diameter and the relative density of sand increases, the anti-disturbance ability of the sand layer to the tunnel construction increases and the volume loss ratio of the stratum reduces correspondingly. The denser the sand and the smaller the confining pressure of the soil around the tunnel, the more significant the shear-induced expansion of the sand at the tunnel haunch; this expansion partially makes up the volume loss caused by the tunnel excavation and reduces the loss ratio of the stratum at the arch crown. Full article
(This article belongs to the Special Issue Symmetry in the Finite Element Method and Finite Element Analysis)
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