Trends in the Analysis and Design of Marine Structures最新文献

{"title":"Implementation of in situ corrosion measurements in structural analysis","authors":"Yikun Wang, Eko Charnius Ilman, Niya Sohan Roy, A. Sobey, J. Wharton, R. Shenoi","doi":"10.1201/9780429298875-48","DOIUrl":"https://doi.org/10.1201/9780429298875-48","url":null,"abstract":"It has been well recognised that stress and strain may have significant influences on corrosion. Increasing effort has been made into understanding this so called mechano-electrochemical phenomenon through theoretical, experimental and numerical studies. However, current practice of marine structural analysis often adopts empirically based corrosion models. The majority of these models are derived from historical data and do not explicitly reflect the influence of the actual service conditions such as the mechanical loading. As a result, it is difficult to incorporate realistic corrosion features, often localised and non-uniform, in structural models. This study implemented in situ corrosion experiments into structural strength assessment to incorporate the corrosion-stress interactions over time. This enables the model to capture the dynamic change in thickness reduction spatially and temporally. Bench-shaped features are obtained, closely resembling the corrosion patterns observed in reality. A failure mode change is observed compared to models with uniform thickness reduction.","PeriodicalId":174888,"journal":{"name":"Trends in the Analysis and Design of Marine Structures","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125931623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Adhesive free GFRP-Steel connection for maritime applications","authors":"J. Jahnke, L. Molter, R. Mus","doi":"10.1201/9780429298875-41","DOIUrl":"https://doi.org/10.1201/9780429298875-41","url":null,"abstract":"","PeriodicalId":174888,"journal":{"name":"Trends in the Analysis and Design of Marine Structures","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127457576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fibreglass repair behaviour as a function of the scarf angle","authors":"G.V.W. Rothbarth, R. Pinto","doi":"10.1201/9780429298875-45","DOIUrl":"https://doi.org/10.1201/9780429298875-45","url":null,"abstract":"","PeriodicalId":174888,"journal":{"name":"Trends in the Analysis and Design of Marine Structures","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127576744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Full scale measurements of the hydro-elastic behavior of a 13000 TEUs container ship","authors":"A. Andoniu, J. D. Lauzon, V. Lamaison","doi":"10.1201/9780429298875-37","DOIUrl":"https://doi.org/10.1201/9780429298875-37","url":null,"abstract":"","PeriodicalId":174888,"journal":{"name":"Trends in the Analysis and Design of Marine Structures","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130162951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Flexural behaviour prediction of a conventional composite-to-steel butt-joint of ships using layerwise HSDT","authors":"N. Kharghani, C. Soares","doi":"10.1201/9780429298875-43","DOIUrl":"https://doi.org/10.1201/9780429298875-43","url":null,"abstract":"","PeriodicalId":174888,"journal":{"name":"Trends in the Analysis and Design of Marine Structures","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131363296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Stability of iron ore berth to handle deep draft vessels","authors":"R. Sundaravadivelu, S. Sakthivel, S. Madhumathy","doi":"10.1201/9780429298875-73","DOIUrl":"https://doi.org/10.1201/9780429298875-73","url":null,"abstract":"","PeriodicalId":174888,"journal":{"name":"Trends in the Analysis and Design of Marine Structures","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123393124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Numerical study on weld residual stress reduction of a stiffened steel plate using vibration","authors":"R. Pradhan, M. R. Sunny, A. Sarkar","doi":"10.1201/9780429298875-50","DOIUrl":"https://doi.org/10.1201/9780429298875-50","url":null,"abstract":"","PeriodicalId":174888,"journal":{"name":"Trends in the Analysis and Design of Marine Structures","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114721079","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact on dry dock extension due to deepening of floor slab","authors":"R. Sundaravadivelu, S. Sakthivel, K. S. Roja","doi":"10.1201/9780429298875-74","DOIUrl":"https://doi.org/10.1201/9780429298875-74","url":null,"abstract":"","PeriodicalId":174888,"journal":{"name":"Trends in the Analysis and Design of Marine Structures","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121420403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ship collision analysis with a floating offshore fish farm","authors":"Z. Yu, J. Amdahl, D. Kristiansen","doi":"10.1201/9780429298875-28","DOIUrl":"https://doi.org/10.1201/9780429298875-28","url":null,"abstract":"Due to limited nearshore areas and great impact to local ecosystems, the aquaculture industry is moving the fish farms from nearshore to more exposed sea regions where waves and current are stronger. Like other offshore installations operating at sea, fish cages are also exposed to the risk of collisions from attendant or visiting vessels. This paper evaluates the structural strength of a fish farm concept subjected to supply vessel collisions by the use of nonlinear finite element simulations. The fish cage is made of ring-stiffened columns and supporting braces. A 7500-ton supply vessel is used as the striking vessel. Several collision scenarios with both coupled and decoupled methods are simulated on representative impact locations. The results are discussed with respect to the impact resistance, energy and structural damage. At present, standard collision actions are not established. The intention of this work is to investigate the resistance to collision and permanent damage of a selected fish farm as a function of the collision energy or the impact speed. No comparison is made with acceptance criteria as they have generally not been established. It is emphasized that structural damage is investigated only, penetration of the net may occur for small impact energies, and the potential of fish escape can be large, even if integrity of the structure is not put in jeopardy. For practical reasons, the striking vessel selected is a 7500-ton offshore supply vessel, which is larger than typical fish harvesting vessels and well boats, but it is not out of range. Thus the analysis results are conservative with respect to safety considerations of the fish cage. The fish cage model, the striking supply vessel model and the collision scenarios are described in detail. The nonlinear finite element code LS-DYNA 971 is used for the numerical simulations. The local strength analysis studies only the relatively weak columns 1, 3, 5, 7 and 9. Future work could be extended to cover the local strength analysis of column 2, 4, 6, 8 and 10. 2 MODEL DESCRIPTIONS 2.1 The striking supply vessel A modern standard supply vessel bow is used in the study. The principal dimensions of the vessel are given in Table 1. The bow model is shown in Fig. 1. The element size is generally 120 mm. The plate thickness varies from 7 mm for the decks to 12.5 mm in the bulb. The stiffener spacing is approximately 600 mm, with ring stiffeners and breast hooks of approximately 250 × 15 mm in the bulb. The bulbous part is almost cylindrical and is relatively strong. The forecastle protrudes 1.2 m ahead of the bulb. Table 1. Principal dimensions of the striking vessel","PeriodicalId":174888,"journal":{"name":"Trends in the Analysis and Design of Marine Structures","volume":"369 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116450221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"System reliability calculation of jacket platforms including fatigue and extreme wave loading","authors":"H. Khalili, S. Oterkus, N. Barltrop, U. Bharadwaj, M. Tipping","doi":"10.1201/9780429298875-66","DOIUrl":"https://doi.org/10.1201/9780429298875-66","url":null,"abstract":"Jacket platforms are redundant structures. Therefore, reliability analysis at system level is more applicable than at component level. Conventionally, system reliability analysis is estimated based on either fatigue loading or extreme environmental loading. The purpose of this study is to perform the structural reliability analysis of a jacket platform under both fatigue and extreme loading. In this study the fatigue limit state is defined based on the crack size, which is obtained by a fracture mechanics approach. The probability of failure for each component is calculated by using Monte-Carlo simulation. Important failure paths are identified by using a searching process. The system failure criterion is evaluated by comparing the platform strength and loading distributions in terms of base shear. In order to define a probabilistic formula for load, a global response surface method is adopted to relate the wave height to the response of the structure. A pushover analysis is also carried out to determine the capacity of the platform. Having calculated the structure strength and loading distributions, the annual probability of failure under extreme wave is calculated and compared to the tolerable probability of failure or target reliability. An application of the approach is presented.","PeriodicalId":174888,"journal":{"name":"Trends in the Analysis and Design of Marine Structures","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131476504","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}