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Ebook: Proceedings of the 20th International Ship and Offshore Structures Congress (ISSC 2018) Volume 1
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The International Ship and Offshore Structures Congress (ISSC) is a forum for the exchange of information by experts undertaking and applying marine structural research. The aim of the ISSC is to facilitate the evaluation and dissemination of results from recent investigations, to make recommendations for standard design procedures and criteria, to discuss research in progress and planned, to identify areas requiring future research and to encourage international collaboration in furthering these aims. Ships and other marine structures used for transportation, exploration and exploitation of resources in and under the oceans are in the scope of the ISSC.
This publication contains the 8 Technical Committee reports presented and discussed at the 20th International Ship and Offshore Structures Congress (ISSC 2018) held in Liège (Belgium) and Amsterdam (The Netherlands), 9–14 September 2018.
The reports of the 8 Specialist Committees are published in volume 2 of the Progress in Maritime Science and Technology book series. The Official discusser’s reports, all floor discussions together with the replies by the committees, will be published after the congress in electronic form.
The first volume contains the eight Technical Committee reports presented and discussed at the 20th International Ship and Offshore Structures Congress (ISSC 2018) in Liege (Belgium) and Amsterdam (The Netherlands), 9–14 September 2018, and the second volume contains the reports of the eight Specialist Committees. The Official discusser's reports, all floor discussions together with the replies by the committees, will be published after the Congress in electronic form.
The Standing Committee of the 20th International Ship and Offshore Structures Congress comprises:
Chairman: Mirek Kaminski, The Netherlands
Co-chairman: Philippe Rigo, Belgium
Segen Estefen, Brazil
Neil Pegg, Canada
Yingqiu Chen, China
Jean-Yves Pradillon, France
Patrick Kaeding, Germany
Manolis Samuelides, Greece
Stefano Ferraris, Italy
Masahiko Fujikubo, Japan
Rune Torhaug, Norway
Carlos Guedes Soares, Portugal
Yoo Sang Choo, Singapore
Jeom Kee Paik, South Korea
Ajit Shenoi, UK
Xiaozhi Wang, USA
On behalf of the Standing Committee, we would like to thank the sponsors of ISSC 2018.
Mirek Kaminski, Chairman
Philippe Rigo, Co-chairman
Delft, 1st May 2018
Concern for descriptions of the ocean environment, especially with respect to wave, current and wind, in deep and shallow waters, and ice, as a basis for the determination of environmental loads for structural design. Attention shall be given to statistical description of these and other related phenomena relevant to the safe design and operation of ships and offshore structures. The committee is encouraged to cooperate with the corresponding ITTC committee.
Concern for the environmental and operational loads from waves, wind, current, ice, slamming, sloshing, green water, weight distribution and any other operational factors. Consideration shall be given to deterministic and statistical load predictions based on model experiments, full-scale measurements and theoretical methods. Uncertainties in load estimations shall be highlighted. The committee is encouraged to cooperate with the corresponding ITTC committee.
Concern for the quasi-static response of ships and offshore structures, as required for safety and serviceability assessments. Attention shall be given to uncertainty of calculation models for use in reliability methods, and to consider both exact and approximate methods for the determination of stresses appropriate for different acceptance criteria.
Concern for the dynamic structural response of ships and offshore structures as required for safety and serviceability assessments, including habitability. This should include steady state, transient and random response. Attention shall be given to dynamic responses resulting from environmental, machinery and propeller excitation. Uncertainties associated with modelling should be highlighted.
Concern for the ductile behaviour of ships and offshore structures and their structural components under ultimate conditions. Attention shall be given to the influence of fabrication imperfections and in-service damage and degradation on reserve strength. Uncertainties in strength models for design shall be highlighted. Consideration shall be given to the practical application of methods.
Concern for crack initiation and growth under cyclic loading as well as unstable crack propagation and tearing in the ship and offshore structures. Due attention shall be paid to the suitability and uncertainty of physical models and testing. Consideration is to be given to practical application, statistical description and fracture control methods in design, fabrication and service.
Concern for the quantification of general sustainability criteria in economic, societal and environmental terms for marine structures and for the development of appropriate principles for rational life-cycle design using these criteria. Special attention should be given to the issue of Goal-Based Standards as concerns their objectives and requirements and plans for implementation. Possible differences with the safety requirements in existing standards developed for the offshore, maritime and other relevant industries and of the current regulatory framework for ship structures shall be considered. Role of reliability-based design codes and requirements as well as their calibration to established safety levels
Concern for the synthesis of the overall design process for marine structures, and its integration with production, maintenance and repair. Particular attention shall be given to the roles and requirements of computer-based design and production, and to the utilization of information technology.