Paper published in a book (Scientific congresses and symposiums)
Ultimate Strength of Stiffened Panels Assessment Taking Into Account Model Uncertainty
Toderan, Catalin; Richir, Thomas; Caprace, Jean-David et al.
2006In Proceedings of OMAE2006
Peer reviewed
 

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Keywords :
Ultimate strength; Reliability; Load shortening model; Statistical moment; Model uncertainty; Progressive collapse analysis
Abstract :
[en] This paper presents a methodology to take into account model uncertainties related to the load-end shortening curve of stiffened panels. This method is a part of a research activity carried out at University of Liège. His goal is to propose a reliability based model to assess hull girder ultimate strength using a progressive collapse algorithm. The numerical results presented here concern the load-shortening model chosen for this research, which is based on Bureau Veritas rules. Model uncertainty is quantified as a parameter considered as a random variable. Four statistical moments (mean, standard deviation, skewness and kurtosis) of this parameter are calculated and analyzed using a data-base of stiffened panels test results published in recent years. In order to increase the number of "actual" values for the statistical assessment, the data-base is completed with non-linear finite element analysis results. The paper contains also some recommendation for the implementation of the proposed method in ultimate strength reliability based analysis.
Disciplines :
Mechanical engineering
Civil engineering
Materials science & engineering
Author, co-author :
Toderan, Catalin
Richir, Thomas
Caprace, Jean-David ;  Université de Liège - ULiège > Département Argenco : Secteur TLU+C > ANAST (Systèmes de transport et constructions navales)
Rigo, Philippe  ;  Université de Liège - ULiège > Département ArGEnCo > Constructions hydrauliques et navales
Language :
English
Title :
Ultimate Strength of Stiffened Panels Assessment Taking Into Account Model Uncertainty
Publication date :
04 June 2006
Event name :
25th International Conference on Offshore Mechanics and Arctic Engineering (OMAE)
Event organizer :
ASME
Event place :
Hamburg, Germany
Event date :
4-9 June 2006
Audience :
International
Main work title :
Proceedings of OMAE2006
Pages :
1-9
Peer reviewed :
Peer reviewed
Available on ORBi :
since 11 May 2010

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