Recent Industrial Developments of Marine Composites Limit States and Design Approaches on Strength
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RESEARCH ARTICLE
Recent Industrial Developments of Marine Composites Limit States and Design Approaches on Strength Beatrice Barsotti 1 & Marco Gaiotti 1 & Cesare Mario Rizzo 1 Received: 13 April 2020 / Accepted: 25 August 2020 # The Author(s) 2020
Abstract To further exploit the potential of marine composites applications in building ship hulls, offshore structures, and marine equipment and components, design approaches should be improved, facing the challenge of a more comprehensive and explicit assessment of appropriately defined limit states. The structure ultimate/limit conditions shall be verified in principle within the whole structural domain and throughout the ship service life. What above calls for extended and reliable materials characterization on the one hand and for accurate and wide-ranging procedures in structural analyses. This paper presents an overview of recent industrial developments of marine composites limit states assessments and design approaches, as available in open literature, focusing on pleasure crafts and yachts as well as navy ships and thus showing a starting point to fill the gap in this respect. After a general introduction about composites characterization techniques, current design practice and rule requirements are briefly summarized. Both inter-ply and intra-ply failure modes and corresponding limit states are then presented along with recently proposed assessment approaches. Three-dimensional aspects in failure modes and manufacturing methods have been identified as the main factors influencing marine composite robustness. Literature review highlighted also fire resistance and hybrid joining techniques as significant issues in the use of marine composites. Keywords Marine composites . Navy ships . Pleasure crafts . Yachts . FEM . Material characterization . Limit state design . Ultimate strength
1 Introduction This paper deals with marine composites and it is intended as a review paper aimed at supporting structural design and analysis in this particular field. While many papers and books are available in open literature about composite materials and outstanding experimental, numerical and theoretical results by many researchers were and still continue to be presented, it was felt desirable to offer a paper specifically dedicated to Article Highlights • Application of composites in marine industry is reviewed aiming at filling the gap between design practice and construction in shipyards; • Design approaches need to be improved becoming more transparent, design oriented and based on limit states to exploit composites potential; • The focus is on pleasure crafts and yachts as well as navy ships. * Cesare Mario Rizzo [email protected] 1
DITEN, Marine Structures Testing Lab, Polytechnic School, University of Genoa, Via Montallegro, 1, Genoa, Italy
marine composites with special focus on pleasure crafts and yachts as well as navy ships. In particular, a few Italian shipyards are specialized in building the above-mentioned units supported by relevant material manufacturer
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