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Applied Sciences
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Ship Structures: Design Loads and Reliability Assessment (2nd Edition)
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Ship Structures: Design Loads and Reliability Assessment (2nd Edition)

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

Deadline for manuscript submissions: closed (30 April 2024) | Viewed by 1508

Special Issue Editor

Dr. Jeong-Hyeon Kim

E-Mail Website1 Website2
Guest Editor
Hydrogen Ship Technology Center, Pusan National University, Busan 46241, Republic of Korea
Interests: alternative fuel storage materials; advanced materials; cryogenics; hydrogen embrittlement; fire; explosion; gas-based fuel storage; liquefied natural gas (LNG); liquid hydrogen (LH2)
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

We are pleased to announce the second edition of this topic, which aims to focus on the recent developments in design loads and reliability assessment of ship structures. The evaluation of structural response is critical in ship design, for which appropriate design loads must be determined. Experimental or analytical methods have been applied to determine design loads in the past, and, recently, with the development of computers, the motion of ships is predicted through various numerical methods, and the loads for the design are determined using this method. In addition, despite continued efforts, failures in ship structures still occur worldwide. Ship structures are typical dynamic systems, and their safety and reliability must be evaluated in combination, including collision, explosion, grounding, etc. This Special Issue covers all topics related to ship design loads and reliability evaluation. Case studies and review papers on novel engineering applications are welcome.

Dr. Jeong-Hyeon Kim
Guest Editor

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

  • ship structures
  • design load
  • reliability assessment
  • ship motion analysis
  • ship strength

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Published Papers (2 papers)

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Research

14 pages, 4152 KiB  
Article
Fatigue Performance Analysis of an Underwater Vehicle Rudder Mechanism Considering Arctic Low Temperatures
by Li Yu, Wenyong Guo, Hantao Chen, Zhe Wu, Chenghao Cao, Xiaofeng Li and Siyu Chen
Appl. Sci. 2024, 14(3), 1057; https://doi.org/10.3390/app14031057 - 26 Jan 2024
Cited by 1 | Viewed by 448
Abstract
For underwater vehicles navigating in Arctic Sea ice-covered waters, fatigue damage is a crucial issue. Many scholars have conducted low-temperature fatigue analysis on low-temperature materials and substrate platforms for ships, and the results show that low temperature is beneficial for improving the mechanical [...] Read more.
For underwater vehicles navigating in Arctic Sea ice-covered waters, fatigue damage is a crucial issue. Many scholars have conducted low-temperature fatigue analysis on low-temperature materials and substrate platforms for ships, and the results show that low temperature is beneficial for improving the mechanical properties of materials. However, they have mainly focused on low-temperature performance experiments and simulation analysis of standard components of materials, and there are very few fatigue life experimental studies on underwater vehicle mechanical structures. This paper conducts experimental investigations on a scaled model of an underwater vehicle rudder mechanism in a polar environment laboratory. Using a comparative analysis method involving simulations and experiments, the low-temperature fatigue test data of the scaled underwater vehicle rudder mechanism are analyzed, and the quantified analysis between fatigue and different low-temperature loading cycles, as well as the influence of icing on the fatigue life, is explored. It is indicated that the Arctic environment can decrease the fatigue life of the underwater vehicle rudder mechanism by deteriorating its material properties. The paper builds the foundation for the fatigue life of an underwater vehicle rudder mechanism in Arctic low-temperature environments. Full article
(This article belongs to the Special Issue Ship Structures: Design Loads and Reliability Assessment (2nd Edition))
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17 pages, 5829 KiB  
Article
Estimation of the Ice-Induced Fatigue Damage to a Semi-Submersible Platform under Level Ice Conditions
by Yoon-Chul Shin, Jeong-Hwan Kim and Yooil Kim
Appl. Sci. 2023, 13(11), 6688; https://doi.org/10.3390/app13116688 - 31 May 2023
Viewed by 800
Abstract
This study presents a fatigue analysis procedure for inclined structures operated in level ice fields. Three methods for calculating the local ice load causing fatigue damage, namely the direct method, simplified method, and semi-analytical method, were introduced and compared. The direct method uses [...] Read more.
This study presents a fatigue analysis procedure for inclined structures operated in level ice fields. Three methods for calculating the local ice load causing fatigue damage, namely the direct method, simplified method, and semi-analytical method, were introduced and compared. The direct method uses finite element analysis to simulate the continuous breaking of ice, while the simplified method and the semi-analytical method estimate the probability distribution of local ice loads based on theoretical equations and empirical data. The fatigue damage ratio at the target location was calculated by applying the ice load calculated by each method to a deformable finite element model of the structure. The results obtained from each method indicate that they provide a reasonable estimation of the local ice load causing fatigue damage in level ice fields. The direct method offers high accuracy but requires significant computational time, while the simplified method and semi-analytical method offer a faster analysis time and are more suitable for long-term time domain analysis. The semi-analytical method requires empirical data to supplement theoretical formulas due to the complex natural phenomena involving various environmental conditions that must be modeled. The findings of this study provide valuable insights into the prediction of fatigue damage in ice-going ships due to long-term ice impacts. The methods proposed in this study can aid in the design of Arctic ships exposed to various conditions and provide a more cost-effective and time-efficient approach to evaluating fatigue damage compared to field measurement. Future research in this field could investigate the application of these methods to other types of structures and further refine the methodology to improve accuracy and reduce computational costs. Full article
(This article belongs to the Special Issue Ship Structures: Design Loads and Reliability Assessment (2nd Edition))
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