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Symmetry
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Asymmetric Problems in Computational Mechanics and Their Engineering Applications
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Asymmetric Problems in Computational Mechanics and Their Engineering Applications

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

Deadline for manuscript submissions: 31 March 2026 | Viewed by 1663

Special Issue Editors

Prof. Dr. Zhanyou Luo

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Guest Editor
Institute of Rock Mechanics, Ningbo University, Ningbo 315211, China
Interests: slope stability; rock joints; tunnel engineering; AI algorithm
Dr. Guangjian Liu

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Guest Editor
Institute of Rock Mechanics, Ningbo University, Ningbo 315211, China
Interests: slope stability analysis; rock joints; rock bolt reinforcement; AI algorithm; scale effect
Prof. Dr. Man Huang

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Guest Editor
Department of Civil Engineering, Shaoxing University, Shaoxing 312000, China
Interests: rock joints; shear strength; roughness; scale effect

Special Issue Information

Dear Colleagues,

Asymmetric problems are widely encountered in the field of computational mechanics, including areas such as material constitutive behavior, structural mechanics, multiphysics coupling, geometric nonlinear analysis, and complex engineering systems. Due to the complexity of mechanical models and the challenges in numerical solutions, these problems pose significant safety threats to engineering projects such as tunnels, slopes, subways, and foundation pits. In recent years, they have garnered significant attention from both academia and industry. To promote academic exchange and technological innovation in this area, the Symmetry is launching a Special Issue titled "Asymmetric Problems in Computational Mechanics and Their Engineering Applications". Scholars, engineers, and related researchers from around the globe are cordially invited to submit their contributions.

Prof. Dr. Zhanyou Luo
Dr. Guangjian Liu
Prof. Dr. Man Huang
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

  • asymmetric material behaviors
  • multiphysics coupling
  • asymmetric boundary conditions
  • AI algorithms and applications
  • asymmetry in tunnel engineering
  • asymmetry in slope stability
  • asymmetry in foundation pit engineering
  • structural safety
  • laboratory testing
  • numerical simulation

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Further information on MDPI's Special Issue policies can be found here.

Published Papers (3 papers)

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Research

21 pages, 4320 KB  
Article
Research on Safety of Pipelines with Defects in Frozen Soil Regions Based on PDE
by Yuan Li, Jun Liu, Haiyang Wang, Ling Fan, Wangqiang Xiao, Yanbin Li, Jiayong Wu, Yan Wang and Zhiqin Cai
Symmetry 2025, 17(10), 1689; https://doi.org/10.3390/sym17101689 - 9 Oct 2025
Viewed by 210
Abstract
Buried pipelines in permafrost areas are affected by harsh environments, especially those with defects and damages, which are prone to failure or even leakage accidents. However, current research is limited to single-factor analysis and fails to comprehensively consider the interaction relationships among temperature [...] Read more.
Buried pipelines in permafrost areas are affected by harsh environments, especially those with defects and damages, which are prone to failure or even leakage accidents. However, current research is limited to single-factor analysis and fails to comprehensively consider the interaction relationships among temperature fields, moisture fields, and stress fields. Therefore, based on the thermodynamic equilibrium equation and the ice–water phase transition theory, this paper constructs the temperature field equation including the latent heat of phase transition, the water field equation considering the migration of unfrozen water, and the elastoplastic stress field equation. A numerical model of the heat–water–force three-field coupling is established to systematically study the influence laws of key parameters such as burial depth, water content, pipe diameter, and wall thickness on the strain distribution of pipelines with defects. The numerical simulation results show that the moisture content has the most significant influence on the stress of pipelines. Pipelines with defects are more prone to damage under the action of freeze–thaw cycles. Based on data analysis, the safety criteria for pipelines were designed, the strain response surface function of pipelines was constructed, and the simulation was verified through experiments. It was concluded that the response surface function has good predictability, with a prediction accuracy of over 90%. Full article
(This article belongs to the Special Issue Asymmetric Problems in Computational Mechanics and Their Engineering Applications)
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26 pages, 6847 KB  
Article
Mechanical Behavior and Bearing Capacity Calculation of Ultra-High Performance Concrete (UHPC)-Reinforced Tunnel Linings
by Lina Luo, Hui Liu, Haibo Hu, Tehan Chen and Gang Lei
Symmetry 2025, 17(9), 1493; https://doi.org/10.3390/sym17091493 - 9 Sep 2025
Viewed by 614
Abstract
Ultra-High Performance Concrete (UHPC), characterized by its superior mechanical properties and excellent durability, has emerged as a promising material for the repair and reinforcement of tunnels. This study aimed to clarify the reinforcement mechanism of UHPC for tunnel linings and the improvement in [...] Read more.
Ultra-High Performance Concrete (UHPC), characterized by its superior mechanical properties and excellent durability, has emerged as a promising material for the repair and reinforcement of tunnels. This study aimed to clarify the reinforcement mechanism of UHPC for tunnel linings and the improvement in bearing capacity through numerical simulation and theoretical derivation. By simulating normal concrete (NC) and reinforced concrete (RC) eccentrically loaded columns under varying reinforcement configurations and working conditions, the study investigated the failure modes and mechanical behaviors of UHPC-reinforced tunnels. Analytical equations for the compression-bending capacity of UHPC-reinforced columns under secondary loading were established and validated. Subsequently, the influence of key parameters was systematically analyzed. The results show that UHPC reinforcement significantly enhances load-bearing capacity, deformation resistance, stiffness, and ductility, albeit with varying failure modes. Notably, the ultimate load-carrying capacity increases by up to 184.6% for NC columns at 180 mm eccentricity and 286.5% for RC columns at 200 mm eccentricity. Reinforcement effectiveness is highly influenced by eccentricity: inner-side reinforcement proves more advantageous under small eccentricities, whereas outer-side reinforcement outperforms under large eccentricities. Comparative analyses of various parameters reveal that initial strain has the greatest impact on reinforcement effectiveness, followed by UHPC thickness, UHPC strength, and the reinforcement ratio of the reinforcement layer, in descending order of influence. The research provides valuable insights into the application of UHPC in tunnel reinforcement, offering a reliable theoretical and numerical basis for engineering design. Full article
(This article belongs to the Special Issue Asymmetric Problems in Computational Mechanics and Their Engineering Applications)
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24 pages, 13464 KB  
Article
Numerical and Field Investigations of Dynamic Failure Caused by Mining-Induced Tremor Based on Asymmetry Seismic Source Characteristics
by Xinke Xiao, Zhilong He and Heng Zhang
Symmetry 2025, 17(9), 1444; https://doi.org/10.3390/sym17091444 - 3 Sep 2025
Viewed by 460
Abstract
The asymmetry of seismic rupture significantly dictates the intensity and spatial distribution of the radiated stress waves during mining-induced tremors, exerting a pivotal influence on the dynamic instability of roadways triggered by mining-induced tremors. In this study, a method for simulating arbitrary rupture [...] Read more.
The asymmetry of seismic rupture significantly dictates the intensity and spatial distribution of the radiated stress waves during mining-induced tremors, exerting a pivotal influence on the dynamic instability of roadways triggered by mining-induced tremors. In this study, a method for simulating arbitrary rupture patterns based on the theory of moment tensors is proposed. Based on the engineering context of strong seismicity-induced roadway dynamic instability at the Xinjulong coal mine, the entire process, from the excitation and propagation of seismic stress waves to the subsequent destabilization and destruction of the roadway, is reproduced. The effects of seismic source, including rupture patterns, seismic energy, fault plane angles, and the dominant frequency of stress waves, on the stability of a roadway are analyzed. Research indicates that a strong mining-induced tremor is characterized by tensile failure, with the radiated P-waves playing a predominant role in the destabilization and collapse of the roadway compared to S-waves. The P-waves exert a repetitive tensile and compressive effect on the perturbed medium, whereas S-waves contribute through compressive shear actions. The stability of a roadway is influenced by various characteristics of the seismic source. The rupture pattern of the seismic source affects the spatial distribution of stress waves. The seismic energy influences the kinetic energy transmitted to the roadway, with an increase in energy leading to a greater contribution of S-waves to roadway destruction. The fault plane angle similarly affects the propagation pattern of stress waves, particularly at 45° and 60° angles, where the maximum radiation of P-waves is directed towards the roadway, causing the most severe damage. The dominant frequency affects the attenuation of stress waves, with lower frequencies resulting in less attenuation and a higher likelihood of roadway damage. Full article
(This article belongs to the Special Issue Asymmetric Problems in Computational Mechanics and Their Engineering Applications)
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