Choo Yoo Sang

Biography

Professor Choo Yoo Sang is currently Adjunct Professor in National University of Singapore and Director (Special Duties) in Technology Centre for Offshore & Marine, Singapore (TCOMS).

He has served as the Lloyd’s Register Foundation Chair Professor in National University of Singapore from 2009 to 2017. He was the 106^th President of The Institute of Marine Engineering Science & Technology (IMarEST) in 2008, and was IMarEST’s first President from Asia.

He studied in University of Manchester and obtained his B.Sc. Hons (1^st Class) in 1977, M.Sc. in 1979 and Ph.D. in 1981. He started work in 1979 in the research group in Manchester on seabed-based deepsea production system concept and continued as Research Associate before joining VO Offshore (UK) in 1982 as Senior Structural Engineer to design the BS8000 semi-submersible vessel and other offshore projects. After serving as Senior Structural Engineer from 1984 in McDermott South East Asia for four years, he joined the National University of Singapore in 1987 as CAD/CAM Specialist, and served as Director of CAE/CAD/CAM Centre from 1995 to 1999 before his transfer to Department of Civil Engineering in 1999.

Professor Choo was Founding Director of the Centre for Offshore Research and Engineering (CORE) when it was set up in NUS in 2003, and then served as Director (Research) of CORE. He is Chairman of Singapore Mirror Committee for International Standards Organisation TC67/SC7 Offshore Structures, member of International Institute of Welding Sub-commission XV-E: Tubular Structures, member of Lloyd’s Register Offshore Technical Committee and member of IMarEST’s Professional Affairs and Education Committee (PAEC).

Professor Choo has received a number of international and national recognitions, including Lifetime Achievement Award – Maritime Academics (in recognition of the sterling contributions and accomplishments in R&D and Education in Offshore & Marine Engineering) in 2009, Lifetime Achievement Award in Marine & Offshore Engineering (2021) and two ISOPE Awards for his significant contributions to the International Society of Offshore & Polar Engineers. He and his research team have won best paper and engineering achievement awards, including Stanley Gray Award 2001 from IMarEST (UK), Prestigious Engineering Achievement Awards 2003 and 2015 presented by IES (Singapore), James Watt Medal 2005 from ICE (UK), and Stanley Gray Medal 2005 from IMarEST (UK). He received the Kurobane Award in 2015 from the International Institute of Welding (IIW) Sub-commission XV-E for his outstanding contributions and achievements in the field of tubular structures. He has been invited to deliver keynote papers or presentations in many international conferences and symposia.

Professor Choo has served in many scientific and technical committees of international organizations and conferences, and hosted as Chairman or Co-Chairman for some of the conferences and symposia. He served as President of Singapore Structural Steel Society from 1992 to 1994. He was in the Board of Directors, International Society of Offshore & Polar Engineers (ISOPE) during 2000 and 2002, and President of Society of Naval Architects & Marine Engineers Singapore from 2012 to 2015. He was Guest Professor in Delft University of Technology (2000 to 2012), University of Southampton (2011) and Seoul National University (2014 to 2015). He was Royal Academy of Engineering Distinguished Visiting Fellow in University of Oxford in 2014. He has served as member of Editorial Board for Journal of Marine Structures, International Journal of Ships and Offshore Structures, Journal of Marine Engineering and Technology, Journal of Ocean Science & Technology and International Journal of Ocean Systems Engineering.

Professor Choo was conferred the Honorary Fellowship of Singapore Structural Steel Society (SSSS) in 2004 in recognition of his technical expertise, outstanding contribution and development in Offshore and Structural Engineering. He is Fellow of The Institute of Marine Engineering Science & Technology (UK) and Royal Institution of Naval Architects (UK), Chartered Engineer (UK) and Chartered Marine Engineer (UK).

Professor Choo has served as technical consultant or expert witness in major offshore projects, and initiated or participated in international joint industry projects. He has served as Principal Investigator in a number of R&D projects, including the Structural Integrity Management Programme on Offshore Structures and Joint Industry Project on Grouted Joints. He has also served as panel member for IMarEST’s PAEC to accredit university degree programmes in China, Malaysia and Singapore.

Professor Choo has been appointed as Distinguished Visiting Professor in Tsinghua University in China from July 2022.

Qualifications

BSc Hons (First Class) (1977), University of Manchester, England
MSc (1979), University of Manchester, England
PhD (1981), University of Manchester, England
Fellow, The Institute of Marine Engineering Science & Technology (UK)
Fellow, Royal Institution of Naval Architects (UK)
Chartered Engineer (United Kingdom)
Chartered Marine Engineer (United Kingdom)
Professional Engineer (Singapore)

Honours & Awards

Distinguished Visiting Professor in Tsinghua University, China (2022-2025)
Lifetime Achievement Award in Marine & Offshore Engineering (2020) from Joint Branch of Royal Institution of Naval Architects and Institute of Marine Engineering Science & Technology (Singapore)
Best Paper Award, Advanced Maritime Engineering Conference (AMEC 2016) of Pan Asian Association of Maritime Engineering Societies (PAAMES), Hong Kong
IES Prestigious Engineering Achievement Award (2015) from The Institution of Engineers Singapore
Kurobane Award from International Institute of Welding Sub-commission XV-E for outstanding contributions and achievements in the field of tubular structures (2015)
Royal Academy of Engineering Distinguished Visiting Fellow in University of Oxford (2014)
The Long Service Medal, one of Singapore’s National Day Awards 2013
SPRING Singapore Merit Award (2013) for significant contributions to the national standards programme
Lifetime Achievement Award – Maritime Academics received during ShipTek 2009, Singapore, “in recognition of the sterling contributions and accomplishments in Research & Development and Education in Offshore & Marine Engineering”.
James Watt Medal (2005) from The Institution of Civil Engineers, UK for Best Paper with significant energy content
Stanley Gray Medal (2005) and Institute Branch Award (2005) from The Institute of Marine Engineering Science & Technology, UK for Best Paper presented to East Asia Division of IMarEST
Honorary Fellow, Singapore Structural Steel Society (2004)
IES Prestigious Engineering Achievement Award (2003) from The Institution of Engineers Singapore
ISOPE Award (2002) from International Society of Offshore and Polar Engineers
Stanley Gray Award (2001) from The Institute of Marine Engineers, UK for Best paper in Offshore Technology
Guest Professor, Seoul National University (2014-2015)
Guest Professor, University of Southampton (2011)
Guest Professor, Delft University of Technology (2000-2012)
ISOPE Award 1993 from International Society of Offshore and Polar Engineers
Edgar Morton Prize, University of Manchester (1977)
Member of Editorial Board, Journal of Marine Structures
Member of Editorial Board, International Journal of Ships and Offshore Structures
Member of Editorial Board, Journal of Marine Engineering and Technology
Member of Editorial Board, Journal of Ocean Science and Technology
Member of Editorial Board, International Journal Ocean Systems Engineering

Keynote/Invited Papers

Kurobane Lecture (Keynote Address) at 15^th International Symposium on Tubular Structures, May 27, 2015 in Rio de Janeiro, Brazil.
Keynote Presentation on “Construction and Installation Engineering of Offshore Structural Systems”, World Maritime Technology Conference, WMTC 2012, May 29 – June 1 2012, St Petersburg, Russia.
Keynote Presentation on “Academia-Industry Collaborations in Offshore Technology” in SMART 100, Symposium on MArine Resource & Technology, 16 October 2011, Taipei, Taiwan.
Keynote Presentation on “Innovative Techniques in Construction and Installation of Offshore Structures”, Marine Science and Technology Conference MARSTEC 2011, September 2011, Malaysia.
Keynote Presentation on “Installation Engineering of Offshore Structural Systems”, OSEA2010 International Conference, 1-3 December 2010, Suntec International Convention & Exhibition Centre, Singapore.
Keynote Paper on “Dynamic Load Positioning for Installation of Subsea Systems”, International Conference on Subsea Technologies, St Petersburg, Russia, June 2009.
Keynote Lecture on “Nonlinear Analysis and Design of Fixed Offshore Platforms”, China Offshore Engineering Summit 2009, Shanghai, China, February 2009.
23^rd Chua Chor Teck Memorial Lecture on “Offshore Engineering Research & Education”, 13^th January 2009, Singapore.
Keynote Presentation on “Cooperation Amongst PAAMES Member Societies in Education and R&D – Personal Perspectives”, 3rd Pan Asian Association of Maritime Engineering Societies Meeting and Advanced Maritime Engineering Conference (AMEC 2008), Chiba-city, Japan, October 2008.
Keynote Lecture on “Recent Developments in Construction Techniques for Floating Structures”. Pacific International Maritime Conference, Jan 2008, Sydney, Australia.
Keynote Lecture on “Numerical and Experimental Investigations on Behaviour of Tubular Joints and Frames”. International Conference on Enhancement and Promotion of Computational Methods in Engineering Science and Mechanics, August 2006, Changchun, China.
Keynote Paper on “Some Developments in Tubular Joint Research”. 4th International Conference on Advances in Steel Structures, Shanghai, China, June 2005.
Keynote Lecture on “Heavy Lift Engineering Research”. 1st Asia-Pacific Conference on Offshore Systems, Subang Jaya, Malaysia, April 2001.
Keynote Paper, in First Asia-Pacific Conference on Offshore Systems: Mobile and Floating Structures, Kuala Lumpur, 1996.
Invited Lecture on “Nonlinear Analysis and Design of Fixed Offshore Platforms”. 2006 Symposium on Offshore Platform Technology for Offshore Oil and Gas Field Development, Beijing, China, June 2006.
Invited Lecture on “Construction Techniques for Offshore Drilling and Production Systems”. International Symposium on Deepwater Offshore Technology, Harbin, Heilongjiang, China, April 2006.
Invited Paper on “Nonlinear Analysis of Offshore Structures with Incorporation of Local Joint Flexibility”. 10th International Conference on Jack-Up Platform Design, Construction and Operation, London, September 2005.
Invited Paper on “Recent Development and Innovation in Tubular Structures”, International Symposium on Innovation and Advances in Steel Structures, Singapore, August 2004.
Invited Paper on “An Effective External Reinforcement Scheme for Circular Hollow Section Joints”, ECCS / AISC Workshop – Connections in Steel Structures V: Innovative Steel Connections, June 2004, Amsterdam, The Netherlands.
Invited Paper, World Maritime Technology Conference: Marine Industry Challenges in the New Global Environment, San Francisco, California, USA, October 2003.

Professional Activities

President, The Institute of Marine Engineering Science & Technology, UK (2008-2009)
President, Society of Naval Architects and Marine Engineers Singapore (2012-2015)
President, Singapore Structural Steel Society (1992-1994)
Member, ISO/TC67/SC7/WG3 for 2nd Edition of ISO 19902: Fixed Steel Offshore Structures (2013-present)
Member, OGP – ISO 19901-9 SIM (Structural Integrity Management) Committee (Ongoing)
Member, Lloyd’s Register Offshore Technical Committee (2013-present)
Standing Committee Member, International Ships and Offshore Structures Congress (2009-2018)
Correspondent for Singapore and member of Technical Committee III.1: Ultimate Strength in International Ships and Offshore Structures Congress (2003-2009).
Chairman, 17^th International Symposium on Tubular Structures, 9-12 December 2019, Singapore
Chairman, Marine Operations Specialty Symposium, MOSS 2016, September 2016, Singapore
Chairman, Marine Operations Specialty Symposium, MOSS 2012, 6-8 August 2012, Singapore
Chairman, Marine Operations Specialty Symposium, MOSS 2008, 5-7 March 2008, Singapore
Fellow of Council, The Institute of Marine Engineering Science & Technology (2005-2008)
Member, International Institute of Welding Sub-commission XV-E: Tubular Structures (1999-present).
Member, International Programme Committee, International Symposium on Tubular Structures (Germany – 2001, Spain – 2003, Canada – 2006, China – 2008, Hong Kong – 2010, London – 2012, Brazil – 2015, Australia – 2017, Singapore – 2019, China – 2023)
Local Chairman, and International Programme Committee, 8th International Symposium on Tubular Structures, Singapore, 1998
Board of Directors, International Society of Offshore & Polar Engineers (2000-2002)
Chairman, Structures and Materials Committee, International Society of Offshore & Polar Engineers (2000-2002)
Technical Programme Committee, International Conference on Offshore & Polar Engineering Conferences (1998-2005)
Co-Chair, 3^rd International Offshore & Polar Engineering Conference, ISOPE-1993, Singapore
International Programme Committee, International Conference on Computer Applications in Shipbuilding, ICCAS series of conferences
Member, PACOMS Executive Committee, International Society of Offshore and Polar Engineers (1993-2000)
Singapore covering focal point for Asean COST Sub-Committee on Marine Science & Technology (SCMSAT) (2014-present)
Chairman, Singapore Mirror Committee, International Standards Organisation TC67/SC7 Offshore Structures (2009-present)
Chairman, Singapore Joint Branch of The Royal Institution of Naval Architects and The Institute of Marine Engineering Science & Technology (2004-2007)

Teaching Areas

Analysis and Design of Offshore Structures
Advanced Structural Steel Design
Design of Steel Structural Systems
Stability and Dynamics of Structures
Plastic Analysis of Structures
Structural Mechanics
Mechanics of Materials

Research Interests

Marine operations and Installation engineering
Structural integrity management of offshore structures
Strength and fatigue capacity of tubular and plated structures and their components
Knowledge-based engineering system development

Selected Publications

Choo, Y S, K C Choi and K H Lee, The effect of eyebar shape and pin/hole tolerance on its ultimate strength. Journal of Constructional Steel Research, 26 (1993): 153-169.
Fuh, J Y H, Y S Choo, A Y C Nee, L Lu and K C Lee, Improvement of the V curing process for the laser lithography technique. Materials & Design, 16, no. 1 (July 1995): 23-32. (United Kingdom).
Lim, C K, Y S Choo and A Y C Nee, Object-Oriented Approach in Design for Lift Installation of Offshore Structures. Microcomputers in Civil Engineering, 10, 3 (1995): 205-218.
Lu, L, J Y H Fuh, Y S Choo, A Y C Nee and K C Lee, Material characterization of photo-fabrication process. Materials and Manufacturing Processes, 10, no. 4 (1995): 653-666.
Choo, Y S, F Ju and K H Lee, Static sling Tensions in Heavy Lifts with Doubled Sling Arrangement. International Journal of Offshore and Polar Engineering, 7, 4 (December 1997): 313-320.
Fuh, J Y H, Y S Choo, L Lu, A Y C Nee, Y S Wong and W L Wang, Post-cure shrinkage of photo-sensitive material used in laser lithography process. Journal of Materials Processing Technology, 63 (1997): 887-891.
Cheah, C M, A Y C Nee, J Y H Fuh, L Lu and Y S Choo, Characteristics of photopolymeric material used in rapid prototypes, Part I – Mechanical properties in the green state. Journal of Materials Processing Technology, 67 (1997): 41-45.
Cheah, C M, J Y H Fuh, A Y C Nee, L Lu and Y S Choo, Characteristics of photopolymeric material used in rapid prototypes, Part II – Mechanical properties in post-cured state. Journal of Materials Processing Technology, 67 (1997): 46-49.
Liew, R J Y, Ling Kan Tang, Tore Holmuas and Y S Choo, Advanced analysis for the assessment of steel franes in fire. Journal of Constructional Steel Research, 47, no. 1-2 (1998): 19-45.
Choo, Y S, F Ju, L Li and M Li, A Decision Support System for Heavy Lift. International Maritime Technology: Transactions, 2, 112 (2000): 43-51.
Liu, A Q, B Wang, Y S Choo and K S Ong, The Effective Design of Bean Bag as a Vibroimpact Damper. Shock and Vibration, 6, 7 (2000): 343-354
Choo, Y S, C K Quah, N E Shanmugam and R J Y Liew, Fabricated Trunnions for Heavy Lift. International Maritime Technology: Transactions, 2, 113 (2001): 64-76.
Liew, R J Y, L K Tang and Y S Choo, Advanced analysis for performance-based design of steel structures exposed to fires. Journal of Structural Engineering – ASCE, 128, 12 (2002): 1584-1593.
Choo, Y S, C K Quah, N E Shanmugam and R J Y Liew, Static Strength of Plate Trunnions Subjected to Shear Loads: Part I: Experimental Study. Journal of Constructional Steel Research, 58, No.2 (2002): 301-318.
Choo, Y S, C K Quah, N E Shanmugam and R J Y Liew, Static Strength of Plate Trunnions Subjected to Shear Loads: Part II: Computational Study and Design Considerations. Journal of Constructional Steel Research, 58, No.2 (2002): 319-322.
Choo, Y S, X.D. Qian, R J Y Liew and J. Wardenier, Strength of Thick-walled CHS X-joints – Part I. New Approach in Strength Definition. Journal of Constructional Steel Research, 59 (2003): 1201-1228.
Choo, Y S, X.D. Qian, R J Y Liew and J. Wardenier, Static Strength of Thick-walled CHS X-joints – Part II. Effect of Chord Stresses. Journal of Constructional Steel Research, 59 (2003): 1229-1250.
Liu, Y, T F Fwa and Y S Choo, Finite Element Modeling of Skid Resistance Test. Journal of Transportation Engineering, 129, 3 (2003): 316-321.
Fwa, T F, Y S Choo and Y. R. Liu, Effect of Aggregate Spacing on Skid Resistance of Asphalt Pavement. Journal of Transportation Engineering, 129, 4 (2003): 420-426.
Boh, JW, LA Louca and Y S Choo, Numerical assessment of explosion resistant profiled barriers. Marine Structures, 17 (2004): 139-160.
Choo, Y S, J Liang, G.J. van der Vegte and R J Y Liew, Static Strength of Collar Plate Reinforced CHS X-joints Loaded by In-Plane Bending. Journal of Constructional Steel Research, 60 (2004): 1745-1760.
Choo, Y S, J Liang, G.J. van der Vegte and R J Y Liew, Static Strength of Doubler Plate Reinforced CHS X-joints Loaded by In-Plane Bending. Journal of Constructional Steel Research, 60 (2004): 1725-1744.
Lee, K H, Y S Choo and F Ju, Finite Element Modelling of Frictional Slip in Heavy Lift Sling Systems. Computers & Structures, 81 (2003) 2673 – 2690.
Louca, LA, JW Boh and Y S Choo, Deformation and Failure of Profiled Barriers Subjected to Hydrocarbon Explosions. Proceedings of the Institution of Civil Engineers, Structures & Buildings, 160 (2004) SB1 pp. 1-13
Boh, JW, LA Louca and Y S Choo, Strain Rate Effects on the Response of Stainless Steel Corrugated Firewalls Subjected to Hydrocarbon Explosions. Journal of Constructional Steel Research, 60 (2004) pp. 1-29.
Choo, Y S, X Qian and K.S. Foo, Static strength variation of thick-walled CHS X-joints with different included angles and chord stress levels. Marine Structures, 17 (2004): 311-324.
Gayathri V, N E Shanmugam and Y S Choo, Concrete-Filled Tubular Columns: Part 1 – Cross-Section Analysis. International Journal of Structural Stability and Dynamics, 4, 4 (2004): 459-476.
Gayathri, V, N E Shanmugam and Y S Choo, Concrete-Filled Tubular Columns: Part 2 – Column Analysis. International Journal of Structural Stability and Dynamics, 4, 4 (2004): 479-496.
Louca LA, JW Boh and YS Choo, Design and analysis of stainless steel profiled blast barriers. Journal of Constructional Steel Research, 60 (2004): 1699-1723.
Louca LA, JW Boh and YS Choo, Response of profiled barriers subject to hydrocarbon explosions. Proceedings of the Institution of Civil Engineers: Structures and Buildings, 157, 5 (1 October 2004): 319-331.
Qian X, RH Dodds, YS Choo, Elastic-plastic Crack Driving Force for Tubular X-joints with Mismatched Welds, Engineering Structures, 27,9, (2005): 1419-1434.
Choo YS, Recent Development and Innovation in Tubular Structures, Advances in Structural Engineering, 8,3, (2005): 217-230.
Qian XD, YS Choo, JYR Liew and J Wardenier, Simulation of Ductile Fracture of CHS Joints Using the Gurson Model. Journal of Structural Engineering – ASCE 131, 5, (2005): 768-780.
Boh JW, LA Louca, YS Choo, Energy Absorbing Passive Impact Barrier for Profiled Blastwalls. International Journal of Impact Engineering, 31,8, (2005): 976-995.
Ju F and YS Choo, Super Element Approach to Cable Passing Through Multiple Pulleys. International Journal of Solids and Structures ,42, 11-12, (2005): 3533-3547
Boh JW, LA Louca, YS Choo, SE Mouring, Damage Modeling of SCRIMP Woven Roving Laminated Beams Subjected to Transverse Shear, 36, 5, (2005): 427-438.
Ju, F and Y S Choo, Dynamic Analysis of Tower Cranes. Journal of Engineering Mechanics – ASCE 131,1, (2005): 88-96
Qian XD, Dodds RH and Choo YS, Mode mixity for circular hollow section X-joints with weld toe cracks, Journal of Offshore Mechanics and Arctic Engineering – Transactions of ASME, 127 (3): 269-279, Aug 2005
Choo, Y S, GJ van der Vegte, N Zettlemoyer, BH Li and RJY Liew, Static Strength of T-joints Reinforced with Doubler or Collar Plates – Part I. Experimental Investigations. Journal of Structural Engineering – ASCE, 131, 1, (2005): 119-128
van der Vegte, GJ, Y S Choo, J Liang, N Zettlemoyer and RJY Liew, Static Strength of T-joints Reinforced with Doubler or Collar Plates – Part II. Numerical Simulations. Journal of Structural Engineering – ASCE, 131, 1, (2005): 129-138
Ju F, YS Choo and FS Cui, Dynamic response of tower crane induced by the pendulum motion of the payload. International Journal of Solids and Structures 43 (2006) 376-389
Choo YS, Qian XD and Wardenier, J. Effects of boundary conditions and chord stresses on static strength of thick-walled CHS K-joints. Journal of Constructional Steel Research. 62 (2006): 316-328.
Qian X, Dodds RH, Choo YS., Mode mixity for tubular K-joints with weld toe cracks, Engineering Fracture Mechanics, 73 (10): 1321-1342 Jul 2006
Wardenier J, and Choo YS, Recent developments in welded hollow section joint recommendations. Advanced Steel Construction, 2 (2006): 109-127.
Wang CM, Wu TY, Choo YS et al., Minimising differential deflection in a pontoon-type very large floating structure via gill cells, Marine Structures, 19 (1): 70-82, Jan 2006
Perry MJ, Koh CG and Choo YS, Modified genetic algorithm strategy for structural identification, Computers and Structures, 84 (8-9): 529-540, Mar 2006
Qian XD, Dodds RH and Choo YS, Elastic-plastic crack driving force for tubular K-joints with mismatched welds, Engineering Structures, 29 (6): 865-879, Jun 2007
Choo YS and Qian XK, Neural network-based evaluation of SCF distribution at the intersection of tubular x-joints, Mechanics of Advanced Materials and Structures, 14 (7): 511-522, Oct 2007
Qian XD, Choo YS, Liew JYR and Wardenier J, Static strength of thick-walled CHS x-joints subjected to brace moment loadings, Journal of Structural Engineering – ASCE, 133 (9): 1278-1287, Sept 2007
Yuen DZ, Ivanov LD, Wang G and Choo YS, Structural reliability assessment of aging ships using the concept of level of certainty, Marine Technology and SNAME News, 45 (3): 132-146, Jul 2008
How BVE, Ge SS and Choo YS, Active control of flexible marine risers, Journal of Sound and Vibration, 320 (4-5): 758-776, Mar 2009
Riyansyah Muhammad, Wang CM and Choo YS. Connection design for two-floating beam system for minimum hydroelastic response. Marine Structures. 23 (1) 67-87, Jan 2010
How BVE, Ge SS and Choo YS. Dynamic Load Positioning for Subsea Installation via Adaptive Neural Control. IEEE Journal OF Oceanic Engineering. 35 (2) 366-375, Apr 2010.
Ge SS, He W, How BVE and Choo YS. Boundary Control of a Coupled Nonlinear Flexible Marine Riser. IEEE Transactions on Control Systems Technology. 18 (5) 1080-1091, Sep 2010.
Chen GX, Kwee TJ, Tan KP, Choo YS and Hong MH. Laser cleaning of steel for paint removal. Applied Physics A – Materials Science & Processing. 101(2) 249-253, Nov 2010.
Tang M, Hong MH, Choo YS, Tang Z and Chua, DHC. Super-hydrophobic transparent surface by femtosecond laser micro-patterned catalyst thin film for carbon nanotube cluster growth. Applied Physics A – Materials Science & Processing. 101 (3) 503-508, Nov 2010
van der Vegte GJ, Wardenier J, Qian XD and Choo YS. Re-evaluation of the moment capacity of CHS joints. Proc. The Institution of Civil Engineers – Structures and Buildings. 163 (6) 439-449, Dec 2010.
Cui RX, Ge SS, How BVEe and Choo YS. Leader-follower formation control of underactuated autonomous underwater vehicles. Ocean Engineering. 37 (17-18) 1491-1502, Dec 2010.
BVEe, Ge SS and Choo YS. Control of Coupled Vessel, Crane, Cable, and Payload Dynamics for Subsea Installation Operations. IEEE Transactions on Control Systems Technology. 19 (1) 208-220, Jan 2011.
Tang M, Shim V, Pan ZY, Choo YS and Hong MH. Laser Ablation of Metal Substrates for Super-hydrophobic Effect. Journal of Laser Micro Nanoengineering. 6 (1) 6-9, Mar 2011.
He W, Ge SS, How BVE, Choo YS and Hong KS. Robust adaptive boundary control of a flexible marine riser with vessel dynamics. Automatica. 47 (4) 722-732, Apr 2011.
Shen W and Choo YS. Stress intensity factor for a tubular T-joint with grouted chord, Engineering Structures, 35 37-47, Feb 2012
Sun L, Taylor, R. Eatock & Choo YS. Multi-body dynamic analysis of float-over installations. Ocean Engineering, Vol 51 pp 1-15, Sep 2012
Taylor PH, Santo H & Choo YS. Current blockage: Reduced Morison forces on space frame structures with high hydrodynamic area, and in regular waves and current. Ocean Engineering, Vol 57 pp 11-24, Jan 2013
Santo H, Taylor PH, Eatock-Taylor R and Choo YS. Average Properties of the Largest Waves in Hurricane Camille. Journal of Offshore Mechanics and Arctic Engineering-Transactions of The ASME. Vol 135 Issue: 1, Feb 2013
Chen M, Ge SS, How BVE & Choo YS. Robust Adaptive Position Mooring Control for Marine Vessels. IEEE Transactions on Control Systems Technology, Vol 21 pp 395-409, Mar 2013
Qian XD, Zhang Y & Choo YS. A load–deformation formulation with fracture representation based on the J–R curve for tubular joints. Engineering Failure Analysis. Vol 33 pp 347-366, 2013.
Shen W, Choo YS, Wardenier J, Packer JA & van der Vegte GJ. Static strength of axially loaded EHS X-joints with braces welded to the narrow sides of the chord. Journal of Constructional Steel Research, Vol 88 pp 181-190, 2013.
Qian, XD, Zhang Y, Choo YS. A load-deformation formulation for CHS X- and K-joints in push-over analyses. Journal of Constructional Steel Research, Vol 90 pp 108-119, Nov 2013.
Santo H, Taylor PH, Williamson CHK and Choo YS. Current blockage experiments: Force time histories on obstacle arrays in combined steady and oscillatory motion. Journal of Fluid Mechanics, Vol 739 pp 143 – 178, 2014.
Santo H, Taylor PH, Bai W and Choo YS. Blockage effects in wave and current: 2D planar simulations of combined regular oscillations and steady flow through porous blocks. Ocean Engineering, Vol. 88 pp. 174-186, 2014.
Chen MS, Eatock Taylor R and Choo YS. Time domain modeling of a dynamic impact oscillator under wave excitations. Ocean Engineering, Vol 76 pp 40-51, 2014.
Wardenier J, Choo YS, Packer JA, van der Vegte GJ and Shen W. Design recommendations for axially loaded elliptical hollow section X and T joints. Steel Construction – Design and Research. Vol. 7 pp 89-96, May 2014.
Shanmugam NE, Zhu DQ, Choo YS and Arockiaswamy, M. Experimental studies on stiffened plates under in-plane load and lateral pressure. Thin-walled Structures, Vol. 80, pp 22-31, July 2014.
Santo H, Taylor PH, Bai W and Choo YS. Current blockage in a numerical wave tank: 3D simulations of regular waves and current through a porous tower. Computers & Fluids. Vol. 115 pp 256-269, July 2015.
Chen JB, Gilbert RB, Choo YS, Marshall PW and Murff JD. Two-dimensional lower bound analysis of offshore pile foundation systems. Int. J. Numerical and Analytical Methods in Geomechanics. 40, 9, pp 1321-1338, June 2016.
Tu FW, Ge SS, Choo YS, Hang CC. Adaptive dynamic positioning control for accommodation vessels with multiple constraints. IET Control Theory and Applications. Vol. 11, 3, pp 329-340, February 2017.
Chen MS, Taylor RE and Choo YS. Investigation of the complex dynamics of float-over deck installation based on a coupled heave-roll-pitch impact model. Ocean Engineering. Vol. 137 pp 262-275, June 2017.
Wen GX, Ge SS, Tu FW and Choo YS. Artificial potential-based adaptive H-infinity synchronized tracking control for accommodation vessel. IEEE Trans. On Industrial Electronics, Vol. 64, 7, pp5640-5647, July 2017.
Tu FW, Ge SS, Choo YS and Hang CC. Sea state identification based on vessel motion response learning via multi-layer classifiers. Ocean Engineering. Vol. 147 pp 318-332 January 2018.
Santo H, Taylor PH, Williamson CHK and Choo YS. The relative-velocity version of the Morison equation for obstacle arrays in combined steady, low and high frequency motion. Journal of Fluid Mechanics. Vol. 842 pp188-214 March 2018.
Santo H,Taylor PH, Day AH, Nixon E and Choo YS. Current blockage and extreme forces on a jacket model in focussed wave groups with current. Journal of Fluids and Structures. Vol. 78 pp 24-35 April 2018.
Chua KH, Taylor, Eatock-Taylor R and Choo YS. Hydrodynamic interaction of side-by-side floating bodies, Part II: Applications of modified linear potential flow and numerical analysis framework to fixed barges. Ocean Engineering. Vol. 164 pp 465-481, September 2018.
Chua KH, Taylor, Eatock-Taylor R and Choo YS. Hydrodynamic interaction of side-by-side floating bodies part I: Development of CFD-based numerical analysis framework and modified potential flow model. Ocean Engineering. Vol. 166 pp 404-415, October 2018.
Sachan A and Choo YS. Mooring chain strength tests and ductile failure modeling using micromechanics and phenomenology based failure models. Ocean Engineering. Vol. 195, January 2020.
Zhang W, Choo YS, Feng L et al. Representation of nonlinear behavior of fully grouted K joints in pushover analysis. Journal of Constructional Steel Research. 169, June 2020.
Zhang W, Choo YS, Feng L et al. Nonlinear behaviour of fully grouted CHS X joints and associated representation for overall frame analysis. Thin-walled Structures. Vol. 152, July 2020.
Sachan A; Cheok WWE and Choo YS. Feature recognition and strength estimation of chain links by 3D inspections. Ocean Engineering. Vol. 225 April 2021.

Adjunct Professor

Department of Civil and Environmental Engineering