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Applied Sciences
Special Issues
Fracture & Failure Prevent: Reliability, Proactivity and Practice
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Fracture & Failure Prevent: Reliability, Proactivity and Practice

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

Deadline for manuscript submissions: closed (31 December 2023) | Viewed by 5448

Special Issue Editors

Prof. Dr. Teresa Leonor Martins Morgado

E-Mail Website
Guest Editor
1. Polytechnic Institute of Lisbon (IPL), 1959-007 Lisboa, Portugal
2. Research and Development Unit for Mechanical and Industrial Engineering (UNIDEMI), 1070-312 Lisboa, Portugal
3. Navy Research Center (CINAV), 2810-001 Almada, Portugal
Interests: mechanics of fracture; instrumentation; mechanical tests; experimental stress analysis; mechanical behavior of materials; structural durability; manufacturing processes; processes and maintenance management
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Suzana Lampreia

E-Mail Website
Guest Editor
1. Science and Technology Department, Portuguese Naval Academy, Alfeite, 2810-001 Almada, Portugal;
2. CINAV – Navy Research Center, Alfeite, 2810-001 Almada, Portugal
Interests: ship condition control; quality systems and maintenance management
Prof. Dr. Mario Pereira

E-Mail Website1 Website2
Guest Editor
CDRSP, ESTG - Polytechnic of Leiria, Campus 2, 2411-901 Leiria, Portugal
Interests: additive manufacture; direct digital manufacturing; CFRP and GFRP with long and short fibers; multifunctional materials/smart materials/metamaterials; fatigue of materials/structural durability; fatigue of welded and adhesive joints; fatigue of weld-bonding joints; total quality management/LEAN and 6 Sigma/quality improvement

Special Issue Information

Dear Colleagues,

The prevention of fracture and failure is a highly multidisciplinary research field, especially when it comes to reliability, proactivity, and practice. It combines technological and scientific methods to produce, model, and understand physical phenomena in mechanics, materials, structural integrity, and design. Submissions are invited of both original research and review articles. Additionally, invited papers based on excellent contributions to the 9th International Conference on Mechanical and Materials in Design in this field will be included in this Special Issue. We hope that this collection of papers will serve as an inspiration for those interested in “Fracture and Failure Prevent: Reliability, Proactivity, and Practice”.

Following the end of the 9th International Conference on Mechanical and Materials in Design, the Scientific Committee will select several papers, based on their scientific originality and on the relevance of their topics, for publication in this Special Issue. Theoretical and experimental contributions, original and review studies, and industrial and university research will be welcome. The selected authors will then be invited to submit extended versions of their conference paper. The main topics include, but are not limited to the following:

  • Fracture and Failure Prevent;
  • Reliability;
  • Risk Analysis;
  • Maintenance Management;
  • Experimental Measure and Analysis.

Prof. Dr. Teresa Leonor Martins Morgado
Prof. Dr. Suzana Lampreia
Prof. Dr. Mario Pereira
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. 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

  • instrumentation
  • mechanical of fracture
  • failure analysis
  • damage studies
  • structural durability
  • application of condition-based maintenance
  • application of reliability-centered maintenance
  • optimization of equipment maintenance
  • maintenance in a contingency context
  • vibration measure and analysis
  • risk analysis
  • mechanical behavior of materials
  • study of cases (naval, railway, aeronautic, automobile, pipelines, bridges, dams)

Published Papers (4 papers)

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Research

31 pages, 21005 KiB  
Article
Quality Analysis of Bonded Joints in the Renovation of Plastic Automotive Parts
by Ján Varga, Janette Brezinová and Jakub Brezina
Appl. Sci. 2024, 14(1), 271; https://doi.org/10.3390/app14010271 - 28 Dec 2023
Cited by 1 | Viewed by 542
Abstract
In the field of automotive parts, bonded joints are finding more and more applications. One of the main advantages of these joints is their non-destructive bonding. Due to them being permanently applied and being exposed to external operating conditions, their strength properties are [...] Read more.
In the field of automotive parts, bonded joints are finding more and more applications. One of the main advantages of these joints is their non-destructive bonding. Due to them being permanently applied and being exposed to external operating conditions, their strength properties are reduced, especially when it comes to parts forming the functional unit of a car after renovation. It is, therefore, important to be able to understand these influences, which can help us to understand the extent to which these plastic parts are affected by external operating conditions after renovation. This article shows the various influences that these plastic parts produced using bonding technology and what they can be exposed to. For the evaluation of bonded joints, the following environments simulate the operating condition: SO2 concentration at total moisture condensation, 20% salt solution, and exposure in atmospheric conditions for one year in the environment. The best values among MEGABOND 2000, ChS EPOXY, and DINITROL 860 adhesives are achieved by ChS EPOXY adhesive, which can be recommended for the renovation of plastic parts for the automotive industry. Full article
(This article belongs to the Special Issue Fracture & Failure Prevent: Reliability, Proactivity and Practice)
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15 pages, 2037 KiB  
Article
Reliability Modeling of Products with Self-Recovery Features for Competing Failure Processes in Whole Life Cycle
by Xingang Wang, Baoyan Wang, Yiqun Niu and Ziqiu He
Appl. Sci. 2023, 13(8), 4800; https://doi.org/10.3390/app13084800 - 11 Apr 2023
Cited by 3 | Viewed by 799
Abstract
In light of the increasing demand for the reliability analysis of self-recovery products, with features of limited storage period and multistage degradation, a reliability evaluation model in whole life cycle is proposed. The degradation process comprises one storage phase and two working phases. [...] Read more.
In light of the increasing demand for the reliability analysis of self-recovery products, with features of limited storage period and multistage degradation, a reliability evaluation model in whole life cycle is proposed. The degradation process comprises one storage phase and two working phases. On the basis of the idea of competitive failure, the shock process and the feature of self-recovery were introduced into the model. Furthermore, the problem of it being difficult to add variables to a reliability model is solved with the use of the Stieltjes integral. The influences of the parameters of model reliability are analyzed, and the results demonstrate that the new model could adequately describe the competing failure process. The model also exhibited certain feasibility and theoretical reference values. Full article
(This article belongs to the Special Issue Fracture & Failure Prevent: Reliability, Proactivity and Practice)
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31 pages, 4039 KiB  
Article
Updating the FMEA Approach with Mitigation Assessment Capabilities—A Case Study of Aircraft Maintenance Repairs
by Vitor Anes, Teresa Morgado, António Abreu, João Calado and Luis Reis
Appl. Sci. 2022, 12(22), 11407; https://doi.org/10.3390/app122211407 - 10 Nov 2022
Cited by 5 | Viewed by 1793
Abstract
This paper proposes a qualitative model to overcome the limitations of conventional failure mode and effects analysis (FMEA), which does not consider risk mitigation capabilities when prioritizing risks. Failure to consider these capabilities can lead to unrealistic risk estimates, especially when the level [...] Read more.
This paper proposes a qualitative model to overcome the limitations of conventional failure mode and effects analysis (FMEA), which does not consider risk mitigation capabilities when prioritizing risks. Failure to consider these capabilities can lead to unrealistic risk estimates, especially when the level of uncertainty is high. In the proposed model, the original applicability of conventional FMEA was retained along with the three conventional risk variables, namely, severity, occurrence, and detectability. In addition, a fourth variable was added to account for risk mitigation capabilities. A case study in the project selection of aircraft repairs was used to demonstrate the implementation of the model and its applicability. The results show that the inclusion of mitigation options leads to more realistic risk scenarios, suggesting that the original FMEA approach may lead to non-conservative risk estimates. Full article
(This article belongs to the Special Issue Fracture & Failure Prevent: Reliability, Proactivity and Practice)
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21 pages, 4540 KiB  
Article
Fatigue Reliability Design Method for Large Aviation Planetary System Considering the Flexibility of the Ring Gear
by Ming Li, Yuan Luo and Liyang Xie
Appl. Sci. 2022, 12(20), 10361; https://doi.org/10.3390/app122010361 - 14 Oct 2022
Cited by 4 | Viewed by 1383
Abstract
As the foundation and core of various heavy aircraft transmission systems, the reliability level of large-scale aviation planetary mechanism restricts the economic affordability and service safety for the aircraft to a great extent. This paper takes the heavy helicopter planetary mechanism as the [...] Read more.
As the foundation and core of various heavy aircraft transmission systems, the reliability level of large-scale aviation planetary mechanism restricts the economic affordability and service safety for the aircraft to a great extent. This paper takes the heavy helicopter planetary mechanism as the research object, and aims to improve the fatigue reliability level of the system. The fatigue load history of the gear teeth under the coupling of global elastic behavior of the system is calculated using a hierarchical finite element method, and the fatigue strength distribution of gear teeth is fitted based on the gear low circumference fatigue test with the minimum order statistics transformation method to provide cost-effective load and strength input variables for the system reliability prediction model. Based on this, a mapping path from the key structural elements of large-scale aviation planetary mechanism to the system reliability indexes is established, and then a new method of reliability-driven multi-objective optimization design for planetary mechanism structural dimensions is proposed. Finally, the influence law of ring gear rim thickness on the fatigue reliability of the planetary gear train is analyzed and the NSGA-Ⅱ genetic algorithm is used to determine the optimal stiffness matching result of the rim size of the designated type of large aviation planetary system. The stiffness potential of the core structural elements is maximized as a way to balance the contradiction between reliability and lightweight requirements of a large aviation planetary system. Full article
(This article belongs to the Special Issue Fracture & Failure Prevent: Reliability, Proactivity and Practice)
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