[ASME ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering - Rotterdam, The Netherlands (June 19–24, 2011)] Volume 3: Materials Technology; Jan Vugts Symposium on Design Methodology of Offshore Structures; Jo Pinkster Symposium on Second Order Wave Drift Forces on Floating Structures; Johan Wichers Symposium on Mooring of Floating Structures in Waves - Development of Heavy Wall High-Strength UOE Linepipe by Means of Microstructural Control in Base Metal and Seam Weld