Ebook: Proceedings of the 20th International Ship and Offshore Structures Congress (ISSC 2018) Volume 2

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 accidental scenarios for ships and offshore structures and for their structural components leading to limit states. Types of accidental scenarios shall include collision, grounding, dropped objects, explosion, and fire. Attention shall be given to hazard identification, accidental loads and nonlinear structural consequences including strength reduction, affecting the probability of failure and related risks. Uncertainties in the use of accidental scenarios for design and analysis shall be highlighted. Consideration shall be given to the practical application of methods and to the development of ISSC guidance for quantitative assessment and management of accidental risks.

Concern for advances in structural model testing and full-scale experimentation and in-service monitoring and their role in the design, construction, inspection and maintenance of ship and offshore structures. This shall include new developments in:

1. Best practice and uncertainty analysis

2. Experimental techniques;

3. Full field imaging and sensor systems;

4. Big data applications for ship and offshore structures

5. Correlation between model, full-scale and numerical datasets

The committee shall give an overview about new developments in the field of ship and offshore materials and fabrication techniques with a focus on trends which are highly relevant for practical applications in the industry in the recent and coming years. Particular emphasis shall be given to the impact of welding and corrosion protection techniques for structural performance, and on the development of lighter structures.

Concern for load analysis and structural design of offshore renewable energy devices. Attention shall be given to the interaction between the load and structural response of fixed and floating installations taking due consideration of the stochastic nature of the ocean environment. Aspects related to prototype testing, certification, marine operations and total cost of energy shall be considered.

Concern for structural challenges of non-conventional, special surface craft, including uncertainties in established design methods and modelling techniques. Particular attention shall be given to mega yachts, naval craft, offshore service vessels and work boats, which can be characterized by particular materials and structural configurations (wide openings, large unsupported structures, unconventionally shaped superstructures, etc.) and/or are to sustain specific loading conditions (harsh environment, severe cyclic loads or extreme operational ones).

Concern for development of technology of particular relevance for the safety of ships and offshore structures in Arctic regions and ice-covered waters. This includes the assessment of methods for calculating loads from sea ice and icebergs, and mitigation of their effects. On this basis, principles and methods for the safety design of ships and fixed and floating structures shall be considered. Recommendations shall also be made regarding priorities for research programmes and efficient implementation of new knowledge and tools.

Concern for the structural longevity of ship, offshore and other marine structures. This shall include diagnosis and prognosis of structural health, prevention of structural failures such as corrosion and fatigue, and structural rehabilitation. The focus shall be on methodologies translating monitoring data into operational and life-cycle management advice. The research and development in passive, latent and active systems including their sensors and actuators shall be addressed.

Concern for the safety and reliability of subsea production systems for oil and gas offshore. This shall include subsea equipment for production and processing, flowlines and risers, with emphasis to design, fabrication, qualification, installation, inspection, maintenance, repair and decommissioning. Structural design for flow assurance and safe underwater operations shall be considered.