A regression and beam theory based approach for fatigue assessment of containership structures including bending and torsion contributions

Mao, Wengang; Li, Zhiyuan; Ogeman, Viktor; Ringsberg, Jonas W.

doi:10.1016/j.marstruc.2015.01.001

Cited by 9 publications

(4 citation statements)

References 11 publications

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“…The procedure is almost as time efficient as for a finite beam element model. General capabilities of the regression method still need to be checked (Mao et al, 2015).…”

Section: Fatigue Loadingmentioning

confidence: 99%

Report of Committee III.2: Fatigue and fracture

2015

Ships and Offshore Structures XIX

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“…The procedure is almost as time efficient as for a finite beam element model. General capabilities of the regression method still need to be checked (Mao et al, 2015).…”

Section: Fatigue Loadingmentioning

confidence: 99%

Report of Committee III.2: Fatigue and fracture

2015

Ships and Offshore Structures XIX

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“…In recent years, the problem was analysed in the experimental and numerical domain. In the experiments, both model tests (Storhaug et al 2010) and full-scale measurements (Gaidai et al 2016, Mao et al 2015 were carried out. In model testing, the tests are usually quite expensive, and only a limited number of cases could be investigated.…”

Section: Introductionmentioning

confidence: 99%

Modern Trends in Research on Steel, Aluminium and Composite Structures

Giżejowski¹,

Kozłowski²,

Chybiński³

et al. 2021

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involvement in the organisation of the 14th International Conference of Metal Structures is perceived by me as a distinction, but also as a proof of trust in the University. This activity fits perfectly the University mission to educate at all levels of higher education and in lifelong learning programs in close connection with scientific and research development. Nowadays, Poznan University of Technology offers education at 9 fac ulties, covering a total of 33 fields of study. Nearly 16,000 students study here and over 1,300 academic teachers cater to their education. The didactic offer of Poznan University of Tech nology covers the most important fields related to modern technology with a recently launched program in Artificial Intelligence; it is also well adapted to the requirements of both domestic and foreign employers. High-quality scientific research is an integral element of Poznan University of Technology strategy, characterized by scientific achievements of its employees who published more than 2,000 scientific contributions: highly ranked articles, monographs, textbooks and other publications. The total number of PUT Library collections is over 450,000 volumes. Among numerous achievements, the University is proud of the H2020 Marie Sklodowska-Curie Global Fellowships and ERC grants. Furthermore, our sci entists are among the authorities of the Polish Academy of Sciences (9 representatives) and are also members of numerous international scientific societies. According to Shanghai Rank ing 2020 edition in disciplines, PUT was classified among the best 400 universities in the world in Mechanical Engineering. Also, we are ranked by students as the most popular university in Poland according to the Ministry of Science and Higher Education in the 2020/2021 academic year.Owing to EU funding, recent years have introduced the development of research infrastruc ture at the Warta university campus. In 2020 our University also became a leader of European University EUNICEa project funded by the European Commission with a budget of more than 6 million EUR. Our university consortium partners originate from Belgium, Germany, France, Finland, Italy and Spain. EUNICE's main goal is to build a common European Uni versity of the future, and prepare its structure and management design within 3 years. EUNICE is aspiring to provide a high-quality digital learning, offering flexible and multidis ciplinary studies, as well as opportunities for students and staff for international exchange and networking. EUNICE will develop modern and innovative pedagogical methods and provide enhanced student services, in terms of enrolment, recognition, student counselling and guid ance aimed at boosting the employability of all students. Just recently, PUT was also granted by the European Commission a follow-up scientific project REUNICE. This H2020 strategic project for the European University Alliance EUNICE aims at aligning its education, research and innovation strategies through an ambitious and transformative agenda.Therefore, I am ...

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“…Furthermore, a huge effort has been put on the development of advanced numerical models, particularly those based on the finite element method, to address multiaxial fatigue problems [ 14 , 15 , 16 , 17 , 18 ]. For practical applications such as cables and wire ropes [ 19 ], implantable medical leads [ 20 ], or containership structures [ 21 ]. All these methods are, in general, supplemented by material tests at various scales [ 22 , 23 , 24 , 25 , 26 ].…”

Section: Introductionmentioning

confidence: 99%

Fracture Surface Behavior of 34CrNiMo6 High-Strength Steel Bars with Blind Holes under Bending-Torsion Fatigue

2021

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The present study evaluates the fracture surface response of fatigued 34CrNiMo6 steel bars with transverse blind holes subjected to bending with torsion loading. The analysis of the geometric product specification was performed by means of height parameters Sx, functional volume parameters Vx, and fractal dimension Df. Surface topography measurements were carried out using an optical profilometer with focus variation technology. The experimental results show that the doubling the bending to torsion moment ratio B/T from B/T = 1 to B/T = 2, maintaining the same normal stress amplitude, greatly reduces both Sa, Vv as well as the fractal dimension Df of the analyzed specimen fractures by 32.1%, 29.8%, and 16.0%, respectively. However, as expected, a two-fold increase in the B/T ratio, maintaining the same normal stress amplitude, resulted in a larger number of cycles to fatigue crack initiation, Ni, which can be explained by the lower shear stress level. These experiments prove that parameters Sx, Vx, Df are smaller for larger Ni values, which is an important finding. In addition, it was found a high consistency of surface topography measurements for the two sides of the broken specimens. The proposed methodology is both reliable and applicable for other engineering applications involving different geometries and loading conditions.

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A regression and beam theory based approach for fatigue assessment of containership structures including bending and torsion contributions

Cited by 9 publications

References 11 publications

Report of Committee III.2: Fatigue and fracture

Report of Committee III.2: Fatigue and fracture

Modern Trends in Research on Steel, Aluminium and Composite Structures

Fracture Surface Behavior of 34CrNiMo6 High-Strength Steel Bars with Blind Holes under Bending-Torsion Fatigue

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