摘要：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 *** structure ultimate/limit conditions shall be verified in principle within the whole structural domain and throughout the ship service *** above calls for extended and reliable materials characterization on the one hand and for accurate and wide-ranging procedures in structural *** 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 *** a general introduction about composites characterization techniques,current design practice and rule requirements are briefly *** inter-ply and intra-ply failure modes and corresponding limit states are then presented along with recently proposed assessment ***-dimensional aspects in failure modes and manufacturing methods have been identified as the main factors influencing marine composite *** review highlighted also fire resistance and hybrid joining techniques as significant issues in the use of marine composites.

摘要：Goal based and limit state design is nowadays a well-established approach in many engineering *** construction rules started introducing such concepts since early ***,classification societies’rules do not provide hints on how to verify limit states and to determine the structural layout of submerged thin-walled stiffened cylinders,whose most prominent examples are ***,they generally offer guidance and prescriptive formulations to assess shell plating and stiffening *** marine structures are studied,designed and built up to carry payloads below the sea *** the concept-design stage,the maximum operating depth is the governing hull scantling *** dimensions are determined based on the analysis of operational *** study proposes a practical conceptdesign approach for conceptual submarine design,aimed at obtaining hull structures that maximize the payload capacity in terms of available internal volume by suitably adjusting structural layout and stiffening members’scantling,duly accounting for robustness and construction constraints as well as practical fabrication *** proposed scantling process highlights that there is no need of complex algorithms if sound engineering judgment is applied in setting down rationally the hull scantling problem.A systematic approach based on a computer-coded procedure developed on purpose was effectively implemented and satisfactorily applied in design practice.