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Applied Sciences
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Computational Analysis and Integrity Assessment of Engineering Structures
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Computational Analysis and Integrity Assessment of Engineering Structures

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Civil Engineering".

Deadline for manuscript submissions: 20 September 2026 | Viewed by 1348

Special Issue Editors

Dr. Bianca Pinheiro

E-Mail Website
Guest Editor
Programa de Engenharia Oceânica (PENO), COPPE/Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
Interests: materials science; subsea structures; integrity assessment; fatigue; corrosion; buckling; burst
Prof. Dr. Fancine Roudet

E-Mail Website
Guest Editor
LGCgE (Laboratoire Génie Civil et géo-Environnement) ULR 4515, Lille, France
Interests: materials science; indentation; micro hardness; macro hardness; bulk material; coating; fatigue
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Ilson Paranhos Pasqualino

E-Mail Website
Guest Editor
Programa de Engenharia Oceânica (PENO), COPPE/Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
Interests: materials science; subsea structures; buckling; burst

Special Issue Information

Dear Colleagues,

The integrity assessment of engineering structures comprises different research and engineering issues across various domains and topics. The integrity assessment of engineering structures plays a crucial role in ensuring the safety, reliability, and longevity of components and systems across diverse industries, including civil, mechanical, offshore, aerospace, and energy. As structures are subjected to increasingly complex loading conditions, harsh environments, and aging effects, the demand for accurate, robust, and efficient assessment methodologies is continuously growing.

Integrity assessment is usually based on one or more combined techniques and methods, involving experimental, computational or analytical standard codes and recommended practices.

More recently, the use of artificial intelligence (AI) combined with computational modeling has emerged as a powerful approach to the integrity assessment of engineering structures, helping to prevent failures and/or performance losses.

This Special Issue aims to gather high-quality contributions that address both fundamental and applied aspects of integrity assessment. We welcome original research papers, reviews, and case studies that highlight recent advances, methodologies, and applications in this field.

Submissions may explore (but are not limited to) the following topics:

  • Microstructural analysis;
  • Corrosion resistance;
  • Fatigue behavior;
  • Aging;
  • Durability.

We look forward to receiving your high-quality contributions.

Dr. Bianca Pinheiro
Prof. Dr. Fancine Roudet
Prof. Dr. Ilson Paranhos Pasqualino
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 250 words) can be sent to the Editorial Office for assessment.

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. Applied Sciences is an international peer-reviewed open access semimonthly 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

  • microstructure
  • mechanical properties
  • failure mechanisms
  • aging
  • corrosion
  • instability
  • collapse
  • buckling
  • material characterization
  • computational simulations
  • experiments
  • artificial intelligence

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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

32 pages, 6187 KB  
Article
Approximate Analytical Solution for Longitudinal Stress in U-Shaped Aqueducts Induced by Circumferential Tensioning
by Heng Min, Yuhang Chen and Jian Wang
Appl. Sci. 2026, 16(7), 3173; https://doi.org/10.3390/app16073173 - 25 Mar 2026
Viewed by 288
Abstract
During circumferential tensioning of prestressing strands in U-shaped aqueducts, longitudinal tensile stresses may develop and impair crack resistance. Most existing studies rely on three-dimensional finite element (FE) simulations. Although accurate, FE modeling is time-consuming and unsuitable for rapid scheme evaluation during construction. To [...] Read more.
During circumferential tensioning of prestressing strands in U-shaped aqueducts, longitudinal tensile stresses may develop and impair crack resistance. Most existing studies rely on three-dimensional finite element (FE) simulations. Although accurate, FE modeling is time-consuming and unsuitable for rapid scheme evaluation during construction. To overcome this limitation, the U-shaped aqueduct was first simplified as a cylindrical shell and the feasibility of this idealization was verified. An approximate analytical solution was then derived from cylindrical shell theory to predict the longitudinal stress induced by circumferential prestressing. Practical factors, including non-uniform wall thickness, non-equidistant strand spacing, and strand positional deviations, were incorporated to improve engineering applicability. FE results confirm good agreement, with RMSE of 0.055–0.169 MPa and NRMSE of 2.3–19.6%, where the upper bound occurs only in localized regions. The method was further applied to an engineering project to optimize the tensioning scheme. With a rational interval-tensioning procedure, the peak longitudinal tensile stress was reduced by 31.6%. Overall, the proposed approach enables rapid stress estimation and supports preliminary screening and optimization of circumferential tensioning schemes. Full article
(This article belongs to the Special Issue Computational Analysis and Integrity Assessment of Engineering Structures)
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25 pages, 5205 KB  
Article
A Comprehensive Design Methodology for Temperature Control and Crack Prevention in Arch–Gravity Dams
by Hao Nie, Kaijia Yu and Jian Wang
Appl. Sci. 2026, 16(6), 3068; https://doi.org/10.3390/app16063068 - 22 Mar 2026
Viewed by 400
Abstract
Arch–gravity dams feature both arch action and large concrete volume, yet targeted research on temperature control and crack prevention for this type remains insufficient. To address this, a Two-Parameter Decision Chart Method for predicting allowable placing temperature, an Analytical–Numerical Hybrid Estimation Method for [...] Read more.
Arch–gravity dams feature both arch action and large concrete volume, yet targeted research on temperature control and crack prevention for this type remains insufficient. To address this, a Two-Parameter Decision Chart Method for predicting allowable placing temperature, an Analytical–Numerical Hybrid Estimation Method for estimating cooling durations, and the Comprehensive Cracking Risk Index (CCRI) for assessing lifecycle concrete safety are proposed, forming a complete design methodology. A case study on a proposed project using full-process simulation quantitatively evaluates the contribution of various measures in mitigating thermal stress across dam zones. Results show that without measures, the CCRI values for interior and surface concrete reach 68.9% and 38.1%, respectively. After implementing combined optimization measures targeting the control of maximum temperature, final temperature before grouting, and internal–external temperature difference throughout the entire process, both CCRI values are reduced to zero. Contribution analysis reveals distinct zonal effectiveness: for interior concrete, low-temperature placement with first-stage cooling contributes most (59.9%); for surface concrete, second- and third-stage cooling dominates (72.7%). Therefore, in practical engineering applications for temperature control and crack prevention in arch–gravity dams, a combination of measures centered on controlling the maximum temperature, optimizing the cooling process, and enhancing surface insulation should be adopted based on the characteristics of interior and surface zones, thereby improving cracking safety. Full article
(This article belongs to the Special Issue Computational Analysis and Integrity Assessment of Engineering Structures)
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42 pages, 7177 KB  
Article
Study on the Ultimate Bearing Capacity of Prestressed Containment Anchor Zone in New High-Strength Concrete
by Jiawei Lu and Shen Wang
Appl. Sci. 2026, 16(5), 2334; https://doi.org/10.3390/app16052334 - 27 Feb 2026
Viewed by 350
Abstract
High-strength concrete (HPC/UHPC) provides a new way to optimize the performance of nuclear power containment, but the mechanism of its application in the bi-directional dense anchorage zone is not clear. In this paper, a three-dimensional nonlinear model was established by ABAQUS to systematically [...] Read more.
High-strength concrete (HPC/UHPC) provides a new way to optimize the performance of nuclear power containment, but the mechanism of its application in the bi-directional dense anchorage zone is not clear. In this paper, a three-dimensional nonlinear model was established by ABAQUS to systematically study the effects of concrete strength, cylinder thickness and other parameters on the local pressure-bearing performance of the anchorage zone. The study shows that the use of C80–C120 concrete can thin the thickness of the containment by 30–40% and significantly enhance the pre-compressive stress safety reserve. Comparison of the existing design codes (e.g., Kim’s formula, Highway Bridge Specifications and UHPC-related regulations) reveals that the prediction results have a non-conservative or over-conservative tendency, which restricts the full utilization of the material performance. This study reveals the working mechanism of bi-directional multiple anchorage zones, demonstrates the advantages of high-strength concrete containment in terms of safety and economy, and provides a theoretical basis for the design of advanced nuclear power structures. Full article
(This article belongs to the Special Issue Computational Analysis and Integrity Assessment of Engineering Structures)
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