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Proceedings Papers

Paper presented at the The Thirteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 14–17, 2018
Paper Number: ISOPE-P-18-105
... ABSTRACT Sloshing impact loads have been reported repeatedly throughout the lifetime of the ship. However, a study on the mechanical performance of polyurethane foam with repetitive impact load has not been conducted despite the necessity of evaluation. Therefore, in this study, the effect...
Proceedings Papers

Paper presented at the The Thirteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 14–17, 2018
Paper Number: ISOPE-P-18-016
... ABSTRACT Response in a porous seabed under dynamic environmental loading is a vital engineering issue in marine geotechnics. Lots of investigations for seabed response under dynamic loading have been developed through mathematical, numerical and experimental approaches. Most previous numerical...
Proceedings Papers

Paper presented at the The Thirteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 14–17, 2018
Paper Number: ISOPE-P-18-022
... approximation is used to govern soil-pore fluid interactions in porous medium. The advanced elasto-plastic constitutive model (PZIII) is used to reproduce the plastic soil behaviour in seabed foundation under long-term cyclic wave loading. Numerical results show that the wave motion can be largely changed due...
Proceedings Papers

Paper presented at the The Thirteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 14–17, 2018
Paper Number: ISOPE-P-18-017
... rate independently. Then, the proposed model was incorporated into the finite element analysis procedure DIANA-SWANDYNE II. Both wave and current loadings are considered in the present model. The proposed model was first validated through comparisons with the previous experimental data for the soil...
Proceedings Papers

Paper presented at the The Twelfth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 4–7, 2016
Paper Number: ISOPE-P-16-151
... Dynamic Response of Pipeline in Touchdown Zone under complicated loadings Yun-yun Dai, Jing Zhou State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology. Dalian, Liaoning, China ABSTRACT The touchdown zone (TDZ) is the most important part of the steel catenary...
Proceedings Papers

Paper presented at the The Twelfth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 4–7, 2016
Paper Number: ISOPE-P-16-015
... Abstract Offshore structures are exposed to random wave loading in the ocean environment and hence the probability distribution of the extreme values of their response to wave loading is required for their safe and economical design. Due to nonlinearity of the drag component of Morison's wave...
Proceedings Papers

Paper presented at the The Eleventh ISOPE Pacific/Asia Offshore Mechanics Symposium, October 12–14, 2014
Paper Number: ISOPE-P-14-082
... for the prediction of residual pore-pressure under irregular cyclic loadings. The reliability of the proposed model was finally verified through the comparisons with previous experimental results. porepressure liquefaction residual porepressure sumer stress-based model oscillatory pore-pressure shear...
Proceedings Papers

Paper presented at the The Eleventh ISOPE Pacific/Asia Offshore Mechanics Symposium, October 12–14, 2014
Paper Number: ISOPE-P-14-024
... of the new variables, asymptotic expansions and integral transformations. The influence of the basin depth, ice plate thickness, source submergence depth, and bottom slope on the plate deflections is analyzed. solid line correspond plate deflection wave height elastic plate loading equation...
Proceedings Papers

Paper presented at the The Eleventh ISOPE Pacific/Asia Offshore Mechanics Symposium, October 12–14, 2014
Paper Number: ISOPE-P-14-084
... loading seabed surface coupling model water pressure experiment reservoir characterization equation wave-seabed interaction analytical solution plasticity mechanism upstream oil & gas seabed model wave model A Coupling Model for Waves Propagating over A Porous Seabed C. C Liao1 D-S...
Proceedings Papers

Paper presented at the The Eleventh ISOPE Pacific/Asia Offshore Mechanics Symposium, October 12–14, 2014
Paper Number: ISOPE-P-14-100
... to get the design wave parameters for critical wave loads. Then, wave loads were mapped to the global structure finite element model, the tendons were modeled as spring element which represents 6 degrees of freedom and rotations. Stress responses are computed by SESAM using the design wave approach...
Proceedings Papers

Paper presented at the The Seventh ISOPE Pacific/Asia Offshore Mechanics Symposium, September 17–21, 2006
Paper Number: ISOPE-P-06-042
... ABSTRACT: The principal aim of this paper is to study the fracture behavior in tubular connection of offshore platforms (Brace Caisson) subjected to wave loading. Fracture mechanics aspect on the assessment of crack tip severity under cyclic loading condition is explored. A series of 3D...
Proceedings Papers

Paper presented at the The Sixth ISOPE Pacific/Asia Offshore Mechanics Symposium, September 12–16, 2004
Paper Number: ISOPE-P-04-022
... during other seasons are exposed to seismic loads at a level of 9 points. russian shelf withstand ice loading ice-resistant platform substructure upstream oil & gas loading sea bottom continental shelf tension tie platform offshore ice-resistant platform displacement subsea system...
Proceedings Papers

Paper presented at the The Sixth ISOPE Pacific/Asia Offshore Mechanics Symposium, September 12–16, 2004
Paper Number: ISOPE-P-04-038
... ABSTRACT: Wind loading on large-scale floating rotor of recently suggested Wind Energy Marine Unit (WEMU) with vertical axis and rotary blades is investigated in the paper. Blades have promising concave-convex airfoil with leading-edge and trailing-edge flaps. Calculations are carried out...
Proceedings Papers

Paper presented at the The Sixth ISOPE Pacific/Asia Offshore Mechanics Symposium, September 12–16, 2004
Paper Number: ISOPE-P-04-020
... ABSTRACT: The paper deals with the linear axial symmetry task concerning the effect of an impulsive load on a viscoelastic ice plate superjacent the elastic basis, i.e. water. Analysis is made of the following factors: the effect of ice plate thickness, relaxation time, variable depth...
Proceedings Papers

Paper presented at the The Fifth ISOPE Pacific/Asia Offshore Mechanics Symposium, November 17–20, 2002
Paper Number: ISOPE-P-02-002
...) and dynamically- positioned shuttle tankers moored at the submerged turret loading (STL) system (API,2001). Fig. 2 shows a shuttle tanker, which approaches a submerged turret loading (STL) system for connection (Choi, et.al.,1994). FPSOs are most favorably considered among floating structures in marginal fields...
Proceedings Papers

Paper presented at the The First ISOPE Pacific/Asia Offshore Mechanics Symposium, June 24–28, 1990
Paper Number: ISOPE-P-90-159
... or Arctic environment. where concrete is placed be- tween steel plates. Discussed in this paper are experimental and theoretical investigations into the elastic- plastic behavior and the ultimate strength of the new composite material. Experiments under static and repeated loadings were carried out. Five...
Proceedings Papers

Paper presented at the The First ISOPE Pacific/Asia Offshore Mechanics Symposium, June 24–28, 1990
Paper Number: ISOPE-P-90-147
... of a systematic study of stresses in tubular Y and T~joints based on nearly 900 finite element analyses using thin-shell elements. These encompass a wide range of joint geometries under axial, in-plane and out-of-plane loading. For each mode of loading, and for both the chord and brace sides of the intersection...
Proceedings Papers

Paper presented at the The First ISOPE Pacific/Asia Offshore Mechanics Symposium, June 24–28, 1990
Paper Number: ISOPE-P-90-098
...Procudlngs of the FITst Pa"ficiAsla Offshore Mechamcs SymposIum Seoul. Korea. 24-28 June. 1990 Copyrtght © 1990 by The InternatIOnal Soctety of Offshore and Polar Engmeers A SYNTHETIC ANALYSIS OF IMPACT LOADING OF SHIPS IN WAVES TO PIERS M. Gao, Y. Zhao, and G. Huang Nalljillg Hydraulic Rt'seardl...
Proceedings Papers

Paper presented at the The First ISOPE Pacific/Asia Offshore Mechanics Symposium, June 24–28, 1990
Paper Number: ISOPE-P-90-146
... geometry, and loading. Stress concentration factor (SCF) is the ratio of the maximum stress at the JOInt to the nominal stress in the brace away from the joint. FatIgue cracks tend to initiate at the tubular intersections where the largest principal stresses occur and faIlures often occur at the nodes...
Proceedings Papers

Paper presented at the The First ISOPE Pacific/Asia Offshore Mechanics Symposium, June 24–28, 1990
Paper Number: ISOPE-P-90-158
... satisfactorily for large deformations so that one can produce solutions satisfying equilibrium and compatibility almost anywhere in the load-deformation field. The method was first applied by the author to suspension cables and inflatable dams which are structures for which a linear- elastic analysis...

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