Marine Structures最新文献_第3页

Investigation and formulation of LJF in collar-reinforced K-joints under OPB in jacket substructures of offshore wind turbines 海上风力机导管套子结构OPB作用下环圈增强k型接头LJF的研究与计算

IF 4 2区工程技术

Marine Structures Pub Date : 2025-03-22 DOI: 10.1016/j.marstruc.2025.103810

Hossein Nassiraei (Associate Professor) , Hamid Reza Chavoshi (Master Student) , Pooya Rezadoost (PhD Candidate)

{"title":"Investigation and formulation of LJF in collar-reinforced K-joints under OPB in jacket substructures of offshore wind turbines","authors":"Hossein Nassiraei (Associate Professor) , Hamid Reza Chavoshi (Master Student) , Pooya Rezadoost (PhD Candidate)","doi":"10.1016/j.marstruc.2025.103810","DOIUrl":"10.1016/j.marstruc.2025.103810","url":null,"abstract":"<div><div>This study examines the local joint flexibility of collar-reinforced K-shaped tubular connections subjected to balanced and unbalanced out-of-plane bending moments. The accuracy of numerical models was first validated by comparing them with available experimental and numerical data. Following this, 274 finite element analyses were performed on 134 connections to investigate the influence of geometric parameters on the flexibility coefficient and the ratio of the flexibility coefficient in reinforced to associated unreinforced connections. The findings revealed that reinforcing K-shaped connections with collar plates significantly reduced the flexibility coefficient, with reductions reaching up to 90.41%, primarily due to the increased radial stiffness of the chord. Additionally, the results showed that longer and thicker collar plates led to a substantial decrease in the flexibility coefficient. Also, the effect of collar thickness becoming more pronounced as collar length increased, highlighting their combined contribution to improving connection stiffness. Moreover, the increase of <em>β</em> and decrease of <em>γ</em> result in the drop of the Local Joint Flexibility coefficient. Finally, two parametric formulas for calculating the flexibility coefficient in reinforced connections were proposed, demonstrating robustness and reliability, and providing consistency with industry standards across a range of connection configurations.</div></div>","PeriodicalId":49879,"journal":{"name":"Marine Structures","volume":"103 ","pages":"Article 103810"},"PeriodicalIF":4.0,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143686007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nonlinear thermal responses of the cracked pipeline rehabilitated by the FGP-GPLs liner with an oval-shaped cross-section 椭圆截面FGP-GPLs衬垫修复裂缝管道的非线性热响应

IF 4 2区工程技术

Marine Structures Pub Date : 2025-03-22 DOI: 10.1016/j.marstruc.2025.103811

Qian Zhang , Shiyi Zhang , Meiling Shen , Zhaochao Li

{"title":"Nonlinear thermal responses of the cracked pipeline rehabilitated by the FGP-GPLs liner with an oval-shaped cross-section","authors":"Qian Zhang , Shiyi Zhang , Meiling Shen , Zhaochao Li","doi":"10.1016/j.marstruc.2025.103811","DOIUrl":"10.1016/j.marstruc.2025.103811","url":null,"abstract":"<div><div>Subsea pipelines are subjected to damage following extended operational periods. A cost-efficient and effective trenchless remediation approach is to install flexible thin-walled liners for continued operation. However, oval-shaped imperfections may happen in the liner because of problems including under-dilatation, distortion of the original pipeline, and faulty joint alignment in engineering applications. This investigation reveals stability characteristics for the encased functionally graded porous (FGP) liner with an oval-shaped cross-section consolidated by graphene platelets (GPLs) within a heating field. The Halpin-Tsai micromechanics approach and Gaussian random field are utilized to characterize the distributed pattern of the porosity and GPLs within the cross-sectional view of the liner. Geometric nonlinearity is considered. A formula for displacement is presented to outline the radial deflection in the FGP-GPLs oval liner. Utilizing the thin-walled shell principle and energy criterion, the temperature-displacement equilibrium path is predicted, and the minimum/critical temperature variation is deduced. Thereafter, comparative examinations are carried out with the results of other investigations. Good accordance indicates the present study is efficient and accurate. Finally, a parameter assessment is accomplished by looking into the impacts of pores, the weight fraction of the GPLs, and ovality on the anti-buckling responses. The conclusion shows that both minimum temperature variation and critical temperature variation decrease by 24.7 % as the ovality increases from 0 % to 10 %.</div></div>","PeriodicalId":49879,"journal":{"name":"Marine Structures","volume":"103 ","pages":"Article 103811"},"PeriodicalIF":4.0,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143686008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation on the cyclic laterally-loaded response of pile-bucket foundation with grouted connection 灌浆连接桩桶基础循环横向荷载响应研究

IF 4 2区工程技术

Marine Structures Pub Date : 2025-03-22 DOI: 10.1016/j.marstruc.2025.103808

Lichen Li , Ningxiao Yan , Zhuo Liu , Wenbing Wu , Guosheng Jiang , Libo Chen , Hao Liu

{"title":"Investigation on the cyclic laterally-loaded response of pile-bucket foundation with grouted connection","authors":"Lichen Li , Ningxiao Yan , Zhuo Liu , Wenbing Wu , Guosheng Jiang , Libo Chen , Hao Liu","doi":"10.1016/j.marstruc.2025.103808","DOIUrl":"10.1016/j.marstruc.2025.103808","url":null,"abstract":"<div><div>As a newly emerged solution for supporting the new generation of offshore wind turbines (OWTs), the pile-bucket foundation has received wide attention. However, little attention has been paid to the grouted connection that connects the monopile and bucket foundation. As the load-transferring, yet vulnerable component, the fatigue mechanism of the grouted connection and its influence on the cyclic laterally-loaded response of OWT foundation are still not clear. In this study, a sophisticated three-dimensional (3D) finite element (FE) model of the pile-bucket foundation with grouted connection is constructed, which incorporates a hypoplastic clay model and the concrete damage plasticity (CDP) to consider the cyclic load effect on both soil and grout material. A modal analysis is first performed to verify the rationality of the proposed model. Then the influence of cyclic load frequency, load amplitude and stiffener arrangement on the accumulation of pile head displacement, stress distribution and crack development of the grouted connection is systematically analyzed. Results indicate that as load frequency approaches the eigen-frequency, the OWT structure tends to vibrate more intensively, leading to stress concentration and fatigue damage of the grouted material and rapid accumulation of the pile-head displacement. The influence of load amplitude on grout damage seems to be limited in the contact area in the simulated cases. Meanwhile, the installation of stiffeners slightly mitigates the pile head displacement accumulation, but also raises the risk of stress concentration and fatigue damage of the grouted connection. The numerical results reveal the load-transferring function and fatigue damage of the grouted connection, which could provide some reference for an optimized structure and dynamic design for the pile-bucket foundation under cyclic load.</div></div>","PeriodicalId":49879,"journal":{"name":"Marine Structures","volume":"103 ","pages":"Article 103808"},"PeriodicalIF":4.0,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143686011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Background for revised fatigue analysis methodology of subsea connectors in DNV-RP-C203 DNV-RP-C203修订海底连接器疲劳分析方法的背景

IF 4 2区工程技术

Marine Structures Pub Date : 2025-03-20 DOI: 10.1016/j.marstruc.2025.103798

Arne Fjeldstad, Anders Wormsen

{"title":"Background for revised fatigue analysis methodology of subsea connectors in DNV-RP-C203","authors":"Arne Fjeldstad, Anders Wormsen","doi":"10.1016/j.marstruc.2025.103798","DOIUrl":"10.1016/j.marstruc.2025.103798","url":null,"abstract":"<div><div>This paper presents the proposed changes to the fatigue analysis procedure and design S-N curves for steel forgings in the 2024 edition of the DNV recommended practice DNV-RP-C203. The procedure specifically targets low alloy forgings used in the subsea industry and incorporates important factors such as material strength, surface roughness, mean stress, notch effect, and in-service environment. The availability of additional data from various laboratory test projects since the procedure's initial introduction in 2016 has allowed for a reassessment and improvement of the methodology. Practical experiences gained from several years of use by the industry have also played a crucial role in its development, highlighting the challenge of establishing a consistent methodology that covers different combinations of stress range, mean stress level, and notch radii. The key changes made in the 2024 edition of the recommended practice include improvements in the notch model and revisions to the S-N curves for seawater environment with cathodic protection. These enhancements aim to provide more accurate fatigue analysis results. Additionally, the paper presents practical examples of the fatigue analysis process based on the recommended practice, focusing on simple notched specimens with varying notch radii. Although these specimens may not directly resemble subsea connector systems, their analysis serves to assist users of the recommended practice in calibrating their own fatigue analyses.</div></div>","PeriodicalId":49879,"journal":{"name":"Marine Structures","volume":"103 ","pages":"Article 103798"},"PeriodicalIF":4.0,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143686009","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental investigation on live-bed scour development and protection of J-tube submarine cable j管海底电缆活床冲刷发展及防护试验研究

IF 4 2区工程技术

Marine Structures Pub Date : 2025-03-14 DOI: 10.1016/j.marstruc.2025.103807

Yangyang Gao , Peiyuan Zhou , Lizhong Wang , Lingzhi Jiang , Haojun Yang

{"title":"Experimental investigation on live-bed scour development and protection of J-tube submarine cable","authors":"Yangyang Gao , Peiyuan Zhou , Lizhong Wang , Lingzhi Jiang , Haojun Yang","doi":"10.1016/j.marstruc.2025.103807","DOIUrl":"10.1016/j.marstruc.2025.103807","url":null,"abstract":"<div><div>A series of experiments were conducted to investigate the live-bed scour development and protection of J-tube submarine cable under the current-only and current-wave conditions. The local scour development and final equilibrium scour depth around the monopile foundation and submarine cable under different wave and current conditions were analyzed. The results show that the maximum scour depth of the scour pit around the monopile increases with the increase of flow velocity and decrease of wave height. Under different current-wave conditions, the maximum scour depth of monopile on the side of J-tube cable is more than 10 % of that on the other side. Different protection methods including riprap protection, different bionic grasses protection and combination protections were examined. The dynamic response of J-tube submarine cable was investigated with different protection methods. The results show that the bionic grass can promote sediment deposition in the protection zone, reduce the suspended length of submarine cable. The concrete mattress can significantly reduce the motion amplitude of suspended submarine cable. The combined riprap-bionic grass 3-concrete mattress protection can reduce the local scour by 96.5 % and submarine cable motion amplitude by more than 80 % under current-wave conditions.</div></div>","PeriodicalId":49879,"journal":{"name":"Marine Structures","volume":"103 ","pages":"Article 103807"},"PeriodicalIF":4.0,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143620758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ship collision model tests in a water tank 在水箱中进行船舶碰撞模型试验

IF 4 2区工程技术

Marine Structures Pub Date : 2025-03-12 DOI: 10.1016/j.marstruc.2025.103791

Ling Zhu , Xiangbiao Wang

{"title":"Ship collision model tests in a water tank","authors":"Ling Zhu , Xiangbiao Wang","doi":"10.1016/j.marstruc.2025.103791","DOIUrl":"10.1016/j.marstruc.2025.103791","url":null,"abstract":"<div><div>This paper investigates the dynamic responses and energy distribution in perpendicular collisions using model tests, in which the three primary elements are involved simultaneously: fluid effects, global ship motions, and local elastoplastic responses. A novel in-tank ship collision testing system has been developed to simulate perpendicular ship collisions, where the struck ship is impacted at its central section. The dynamic process of ship motions, structural deformation, energy dissipation, and added mass during collision are analyzed. Three collision scenarios are examined: Perpendicular Collision (PC), Planar Perpendicular Collision (PPC), and Central Perpendicular Collision (CPC). The calculation of energy loss during collision based on PC gives a good fit to the experimental results. It is found that the energy dissipation in the collision test is approximately linearly correlated with the initial energy input to the system. On average, about 51% of the initial kinetic energy is dissipated in the collision, mainly absorbed by the side structure through plastic deformation. These experimental data can be used for benchmarking the theoretical and numerical methods, and useful insight is provided for assessing collision scenarios.</div></div>","PeriodicalId":49879,"journal":{"name":"Marine Structures","volume":"103 ","pages":"Article 103791"},"PeriodicalIF":4.0,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143601245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparisons on vibration reduction effect of two types of particle dampers for offshore wind turbine structures 两种粒子阻尼器对海上风力机结构减振效果的比较

IF 4 2区工程技术

Marine Structures Pub Date : 2025-03-12 DOI: 10.1016/j.marstruc.2025.103809

Xiaofeng Dong , Yuan Jia , Shencheng Ren , Jiale Li , Zhuo Miao

{"title":"Comparisons on vibration reduction effect of two types of particle dampers for offshore wind turbine structures","authors":"Xiaofeng Dong , Yuan Jia , Shencheng Ren , Jiale Li , Zhuo Miao","doi":"10.1016/j.marstruc.2025.103809","DOIUrl":"10.1016/j.marstruc.2025.103809","url":null,"abstract":"<div><div>Offshore wind power (OWP) is developing towards large capacity, high towers, and long blades, which causes offshore wind turbines (OWT) to bear more severe environmental loads and increase the risk of vibration and fatigue. Although dampers can effectively control vibration, they are mostly difficult to apply in practice due to the limited space in the nacelle and tower. To solve this problem, two types of particle dampers with strong robustness and flexible layout characteristics were introduced in this research, and their vibration reduction performance was compared. Firstly, considering the actual spatial layout inside OWT, two types of particle dampers, respectively, called the vibration reduction particle deck (VR-PD) and particle damping-tuned mass damper (PD-TMD), were proposed. Then, the finite-element method (FEM) and discrete-element method (DEM) were both used to establish the coupled FEM-DEM numerical model of OWT structure, and its effectiveness was demonstrated through a classic physical model experiment. Finally, the tuned mass damper (TMD) was installed on the numerical model of OWT structures and compared with two newly proposed dampers for vibration reduction effect under the seven conditions, including modal analysis, impact condition, extreme condition, seismic condition, vibration amplification condition, operation condition, and fatigue condition. It can be shown that VR-PD and PD-TMD can better control the vibration of OWT structures under the condition of large displacement and reduce the maximum displacement by 81.40 % and 81.05 %, respectively, under the vibration amplification condition. Simultaneously, VR-PD and TMD have good vibration reduction effects under operational conditions, which can reduce the root mean square (RMS) value of displacement by 30.1 % and 31.1 %, and the peak displacement by 30.95 % and 23.56 %, respectively. Additionally, VR-PD and TMD are more excellent in increasing the fatigue life of OWT structures.</div></div>","PeriodicalId":49879,"journal":{"name":"Marine Structures","volume":"103 ","pages":"Article 103809"},"PeriodicalIF":4.0,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143609241","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dynamic response analysis of the installation system during hoisting and mating phases using a floating vessel. Part Ⅰ: Model formulation and verification 浮船安装系统吊装与配合阶段的动态响应分析。Ⅰ部分：模型的制定与验证

IF 4 2区工程技术

Marine Structures Pub Date : 2025-03-06 DOI: 10.1016/j.marstruc.2025.103796

Li Yin , Dongsheng Qiao , Guoguang Sun , Pengfei Liu , Guoqiang Tang , Lin Lu , Jinping Ou

{"title":"Dynamic response analysis of the installation system during hoisting and mating phases using a floating vessel. Part Ⅰ: Model formulation and verification","authors":"Li Yin , Dongsheng Qiao , Guoguang Sun , Pengfei Liu , Guoqiang Tang , Lin Lu , Jinping Ou","doi":"10.1016/j.marstruc.2025.103796","DOIUrl":"10.1016/j.marstruc.2025.103796","url":null,"abstract":"<div><div>The blade installation system using the floating installation vessel comprises several parts, including the vessel equipped with the dynamic positioning system, the ship-mounted crane, and the double pendulum system. The interaction within the system will significantly impact the dynamic responses of the blade. To analyze the coupling responses of each part, the model-based design method is employed. The hydrodynamic analysis module of the installation vessel is built by the Cummins method, the kinematic module is constructed by the coordinate transformation and the double pendulum model, as well as the dynamic module is developed by the Lagrangian method. The aforementioned modules are integrated to develop the analysis program. By code-to-code comparison, the dynamic responses of the entire installation process can be accurately assessed by the program when the forces on the blade as well as the motion of installation vessel and ship-mounted crane are considered. In addition, the program can effectively improve calculation efficiency. In Part II of this paper, the dynamic responses of blade installation system are analyzed.</div></div>","PeriodicalId":49879,"journal":{"name":"Marine Structures","volume":"103 ","pages":"Article 103796"},"PeriodicalIF":4.0,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143552054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A new finite joint element to model joint connections in offshore structures 用于模拟海上结构连接的新型有限连接单元

IF 4 2区工程技术

Marine Structures Pub Date : 2025-03-03 DOI: 10.1016/j.marstruc.2025.103797

A.R. Damanpack

{"title":"A new finite joint element to model joint connections in offshore structures","authors":"A.R. Damanpack","doi":"10.1016/j.marstruc.2025.103797","DOIUrl":"10.1016/j.marstruc.2025.103797","url":null,"abstract":"<div><div>In this paper, a novel approach is presented to improve the accuracy and reduce the computational time of the finite element analysis of massive lattice structures. To achieve these goals, the global structure is discretized based on the beam elements while joint connections are replaced with joint elements. Then, the proposed joint element matrices are formulated in the local model with solid elements and consequently formed according to the beam theory. The present formulation is able to impose the details of joint connections in the global matrices. To verify and evaluate the proposed model, the numerical results of various cases are compared with ANSYS and those reported in the open literature. Moreover, a special study on the real-life offshore jacket structure has been carried out subjected to static loads and free vibrations. The comparison study shows the consistency of joint elements in both mass and stiffness matrices by reducing errors significantly to 0 % and 5 % while the error of using only beam elements reaches up to 300 % in some cases. It is concluded that the present approach can be efficiently implemented for the modeling of 3D massive lattice structures with reasonable accuracy and computational time.</div></div>","PeriodicalId":49879,"journal":{"name":"Marine Structures","volume":"103 ","pages":"Article 103797"},"PeriodicalIF":4.0,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143528964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental and numerical assessment of ultimate strength of a transversally loaded thin-walled deck structure 横向荷载薄壁甲板结构极限强度的试验与数值评定

IF 4 2区工程技术

Marine Structures Pub Date : 2025-02-27 DOI: 10.1016/j.marstruc.2025.103793

Beatrice Barsotti , Carlo Battini , Marco Gaiotti , Cesare Mario Rizzo , Gianmarco Vergassola

{"title":"Experimental and numerical assessment of ultimate strength of a transversally loaded thin-walled deck structure","authors":"Beatrice Barsotti , Carlo Battini , Marco Gaiotti , Cesare Mario Rizzo , Gianmarco Vergassola","doi":"10.1016/j.marstruc.2025.103793","DOIUrl":"10.1016/j.marstruc.2025.103793","url":null,"abstract":"<div><div>Many studies have been conducted to determine the ultimate strength of axially loaded ship structures at different levels of complexity, considering grillages, stiffened panels, transverse ring frames as well as complete hull blocks, aimed at assessing progressive collapse analysis of the whole hull girder, both analytically and numerically. However, little research has been conducted on the effects that transversal loads can have on relatively thin shell plating, particularly sensitive to buckling phenomena even for rather low loading thresholds. Moreover, the more and more frequent use of higher and higher strength steels makes ship structures slender and, consequently, likely to be even more sensitive to buckling phenomena. In the framework of a research project funded by Fincantieri R&D Department, a full-scale experimental test is performed on a structure simulating a deck portion characterized by a relatively thin plating, such as to induce an early local elastic buckling with a wide post-buckling range, before the ultimate load is reached. Nonlinear finite element analysis is carried out to design the experiment, considering both the nominal and the actual geometry of the structure as obtained by laser scanning the plating and by 3D reconstruction of the stiffeners. The effect of initial plating imperfection and of welding residual stresses on the numerical models has been considered as well, verifying their impact both, on the load end-shortening curve and on the ultimate strength of the panel.</div></div>","PeriodicalId":49879,"journal":{"name":"Marine Structures","volume":"103 ","pages":"Article 103793"},"PeriodicalIF":4.0,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143511820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0