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Lie Seng Tjhen


Programme Director, M.Sc (Civil Engineering)





Associate Professor
B.Eng., D.I.C., M.Sc., Ph.D.
Office: N1-01c-78
Tel: (65) 6790-5284
Email: cstlie@ntu.edu.sg



Education:

  • 1st degree, University College London, University of London
  • Master, Imperial College London, University of London
  • PhD, University of Manchester Institute of Science and Technology

Career details:

  • Associate Professor, Nanyang Technological University
  • Senior Lecturer, Nanyang Technological University
  • Executive Structural Engineer, Housing and Development Board
  • Structural Engineer, Housing and Development Board
  • Structural Enginner, T.H. Chuah and Associates Pte. Ltd.
  • Part-Time Teaching Assistant, University of Manchester Institute of Science and Technology
  • Research Assistant, University of Manchester Institute of Science and Technology

Member of Professional Societies

  • Member of The Institution of Structural Engineers (MIStructE) since 1991
  • Senior Member of the Welding Institute (SenMWeldI) & C.Eng since 2006
  • Senior Member of The Institution of Engineers (SenMIES) & PEng since 2004
  • Member of Singapore Structural Steel Society since 1990
  • Member of The Singapore Welding Society since 2007

Editorial Board Member

  • Reviewers of International Journal of Pressure Vessels & Piping and Engineering Fracture Mechanics


Main research interest

  • Crack and defect of tubular welded joints
  • Fatigue and fracture assessment of cracked onshore/offshore welded joints
  • Damage fracture mechanics
  • Failure assessment diagram
  • Weld defects, size effects, residual stresses
  • Welding technology

Current research project (if any either as PI, CoPI or collaborator, title only)

  • NTU-MPA-MRC Research & Development Programme (PI, Solo Project)
    Project Title – Remote Stress Monitoring System (RSMS) for Safe Storage of CNG tank cylinders under High Pressure
    Cost and Funding = S$372,000,-
    Duration of the project – 2008-2011
  • NTU-LTA-MRC Research & Development Programme (PI, Solo Project)
    Project Title – Off-line Portable Damage Detection Devices for Compressed Natural Gas (CNG) Tank Cylinders Fitted in Vehicles
    Cost and Funding = S$438,800,-
    Duration of the project – 2010-2012


  • Lie S.T., Yang Z.M., Chiew S.P. & Lee C.K., 2007. “The Ultimate Behaviour of Cracked Square Hollow Section T-joints”. International Journal of Advanced Steel Construction, Vol. 3, No. 1, pp. 443-458.
  • Lie S.T. & Yang Z.M., 2009. “Validation of BS7910:2005 Failure Assessment Diagram for Cracked Square Hollow Section T-, Y- and K-joints”. International Journal of Pressure Vessels and Piping, Vol. 86, No. 5, pp. 291-344.
  • Lie S.T. & Yang Z.M., 2009. “Fracture Assessment of Damaged Square Hollow Section (SHS) K-joint Using BS7910:2005”. Engineering Fracture Mechanics, Vol. 76, No. 9, pp. 1303-1319.
  • Lie S.T. & Yang Z.M., 2009. “Safety Assessment Procedure for a Cracked Square Hollow Section (SHS) Y-joint”. International Journal of Advances in Structural Engineering, Vol. 12, No. 3, pp. 359-372.
  • Lie S.T. & Yang Z.M., 2011. “Plastic Collapse Loads of Cracked Square Hollow Section (SHS) T-, Y- and K-joints”. Journal of Offshore Mechanics and Arctic Engineering (OMAE), American Society of Mechanical Engineers (ASME), Vol. 133, No. 2, pp. 021601-1 to 021601-10.
  • Lie S.T. & Yang Z.M., 2011. “Numerical Models Validation of Cracked Square Hollow Section (SHS) Y- and K-joints”. Journal of Structural Engineering, American Society of Civil Engineers (ASCE), Vol. 137, No. 10, pp. 1132-1140.
  • Lie S.T., Li T. & Shao Y.B., 2012. “Estimation of Stress Intensity Factors in Tubular K-joints Using Direct and Indirect Methods”. International Journal of Advanced Steel Construction, Vol. 8, No. 2, pp. 17-37.


  • Commonwealth Research Scholarship
  • Part Time Teaching Assistantship at University of Manchester Institute of Science and Technology