FACULTY

Title : Professor of Structural Engineering
Name : Worsak Kanok-Nukulchai
FoS : Structural Engineering
Affiliation : Acting President of AIT, Vice President for Resource Development
Location : N211
Phone : (662) 524 5535
Fax : (662) 524 6432
Email : worsak[at]ait.ac.th

Educational Background

  1. Ph. D., University of California at Berkeley, 1978
  2. M.Eng. Asian Institute of Technology, 1973
  3. B.Eng. Chulalongkorn University, 1971

Brief BiodataWorsak Kanok-Nukulchai received his Ph.D. in Structural Engineering and Structural Mechanics from the University of California at Berkeley in 1978 as a Fulbright Scholar. He joined Asian Institute of Technology (AIT) and has been a Professor since 1987. In administration, he has served as the Dean of the School of Civil Engineering during 1998-2004, and is now serving Dean of School of Engineering and Technology.He has extensive research experiences and published widely in Computational Mechanics for the last 25 years. In 1997 he was admitted as a Royal Scholar as member of the Royal Institute of Thailand. In 1999, he was honored as "National Distinguished Researcher of the Year" by Thailand's National Research Council. Internationally, he was awarded "Fellow of the International Association of Computational Mechanics (IACM)"

 

Research Interests


Professor Worsak's research in the early days forcused on developing new finite element methodologies and numerical methods. In 1970s, his interests turned to finite element modeling of large deformation plates and shells, time integration methods, contact and impact problems, nonlinear solution techniques as well as the numerical aspects of dynamic problems. He was also interested in finite element software development especially under personal computer environment. His software package, Microfeap, earned wide-spread users in the region and earned him award from National Research Council of Thailand.His current interest is given to meshfree methods based on Kriging Interpolation. The use of Kriging Interpolation in conjunction with layered domains of influence helps extend the power of finite element beyond its limits. This results in smooth and very accurate solution for both displacement and stress fields. His other current interest is also structural health monitoring. Based on this research, he has introduced a so-called Global Flexibility Index (GFI) that can be used to monitor the global weakening of highway bridges.

 

Teaching


CE72-11: Computer Methods of Structural Analysis
CE72-32: Tall Buildings
CE72-12: Finite Element Methods in Engineering

 

Selected Publications

  1. T.J.R. HUGHES, R.L. TAYLOR, J.L. SACKMAN, A. CURNIER, and W. KANOKNUKULCHAI, "A finite element method for a class of contact impact problems", Computer Methods in Applied Mechanics and Engineering, 8, 249 276 (1976).
  2. T.J.R. HUGHES, R.L. TAYLOR, and W. KANOKNUKULCHAI, "Numerical prediction of head/helmet system response," in Measurement and Prediction of Structural and Biodynamic Crash Impact Response, ASME, New York, 1976, pp. 151 165.
  3. T.J.R. HUGHES, R.L. TAYLOR, and W. KANOKNUKULCHAI, "A simple and efficient finite element for plate bending", Int. J. for Num Methods in Engng, 11, 1529 1542 (1977).
  4. W. KANOK NUKULCHAI, "A simple and efficient finite element for general shell analysis", Int. J. for Num Methods in Engng, 14, 179 200 (1979).
  5. W. KANOK NUKULCHAI, R.L. TAYLOR, and T.J.R. HUGHES, "A large deformation for shell analysis by the finite element method", Computers and Structures, 13, 1/2, 19 27 (1981).
  6. W. KANOK NUKULCHAI, P.H. DAYAWANSA, and P. KARASUDHI, "An exact finite element model for deep beams", International Journal of Structures, 1, 1, 1 7 (1981).
  7. W. KANOK NUKULCHAI and V.W. SUARIS, "An efficient finite element scheme for elastic porous media", Int. J. of Solids and Structures, 18, 1, pp. 37 49 (1982).
  8. W. KANOK NUKULCHAI and A.K. GILANI, "A macroelement for waffle slab analysis", Computers and Structures, 15, 2, pp. 117 122 (1982).
  9. C. POLPRASERT, W. KANOK NUKULCHAI, and V.S. RAJPUT, "A ferro cement digester: biogas and biomass production", Journal of Ferrocement, 12, 1, pp. 25 34 (1982).
  10. W. KANOK NUKULCHAI, S.Y. LEE, and P. KARASUDHI, "A versatile finite strip model for three dimensional tall building analysis", International Journal of Earthquake Engineering & Structural Dynamics, Vol. 11, pp. 149 166 (1982).
  11. W. KANOK NUKULCHAI and Y.S. SHIN, "Versatile and improved higher order beam element", J. of Structural Engineering, ASCE, 110, 9, 2234 49 (1984).
  12. KANOK NUKULCHAI, "On a Microcomputer Integrated System for Structural Engineering Practice", Computers and Structures, Vol. 13, No. 1, 33 37 (1986).

13.

  1. Large Deformation Analysis of Structural Elements", Proc. of JSCE, Structural Engineering /Earthquake Engineering, Vol 3, No. 1, April 1986.
  2. W. KANOK NUKULCHAI and M. SIVAKUMAR, "Degenerate Elements for Combined Flexural and Torsional Analysis of Thin Walled Structures", J. of Structural Engineering, ASCE, 114, 3, 657-674 (1988).
  3. W. KANOK NUKULCHAI and W.K. WONG, "Element-Based Lagrangian Formulation for Large Deformation Analysis", Computers and Structures, Vol. 30, No. 4, pp. 967-974, 1988.
  4. T. CHAISOMPHOB, W. KANOK-NUKULCHAI, and F. NISHINO, "An Automatic Arc Length Control Algorithm for Tracing Equilibrium Paths of Nonlinear Structures", Structural Engineering/Earthquake Engineering, JSCE, Vol. 5, No. 1, April 1988, pp. 205-208.
  5. W KANOK NUKULCHAI, "Closure to Degenerate Elements for Combined Flexural and Torsional Analysis of Thin Walled Structures", J. of Structural Engineering, ASCE, Vol. 115, No. 9, pp. 2412-2413, 1989.
  6. YAMAGUCHI, W. KANOK-NUKULCHAI, T. OHTA, "A Study of Finite Displacement Analyses of Beam Structures by the Finite Element Method", J. of Structural Engineering, JSCE, Vol. 35A, pp. 175-183, 1989 (in Japanese).
  7. W. KANOK-NUKULCHAI and K.T. Chau, "Point sink fundamental solutions for subsidence prediction", J. of Engineering Mechanics, ASCE, 116, 5,1176-1182 (1990).
  8. W. KANOK-NUKULCHAI, P.K. Yiu, and D.M. Brotton, "Mathematical Modelling of Cable-Stayed Bridges", Structural Engineering International, J of the Int. Asso. for Bridge and Structural Engineering (IABSE), SEI 2, 108-113 (1992).
  9. W. KANOK-NUKULCHAI and S.F. LIN, "Nonlinear Analysis Using Ritz Vectors Reduced Basis", Computers & Structures, Vol.44, No.1/2, 1992, pp. 117-124.
  10. G.M. Hong, C.M. Wang, and W. KANOK-NUKULCHAI, "Elastic Buckling of Circular Plates with Allowance for Pre-Buckling Deformation" in Journal of Engineering Mechanics, ASCE, 119, 5,.905-916 (1993).
  11. W. KANOK-NUKULCHAI, and G. Hong, "Nonlinear Modelling of Cable-Stayed Bridges", Journal of Constructional Steel Research, Vol. 26, 1993, pp. 249-267.
  12. W. KANOK-NUKULCHAI and T. Susompow, "False Paradox of Torsional Buckling", J. of Structural Engineering, ASCE, 119, 12 (1993).
  13. D. Gee-Clough, J. Wang and W. KANOK-NUKULCHAI, "Deformation and Failure in Wet Clay Soil: Part 3, Finite Element Analysis of Cutting of Wet Clay by Tines," Journal of Agricultural Engineering Research, 58, 1994, pp. 121-131.
  14. W. KANOK-NUKULCHAI "Collapse of the Royal Plaza Hotel, Thailand," in Structural Engineering International, Journal of the Internatioal Association for Bridge and Structural Engineering (IABSE), SEI Vol. 5 Number 1, February 1995, pp. 55-57.
  15. S.J. Lee, and W. KANOK-NUKULCHAI, "A Nine-node Assumed Strain Finite Element for Large-Deformation Analysis of Laminated Shells," Int. J. for Numerical Methods in Engineering, Vol. 42, No. 5, 1998, pp. 777-798.
  16. E. Yamaguchi, W. KANOK-NUKULCHAI, Hammadeh, and Kubo, "Large displacement analysis of beams by degeneration approach," Journal of Engineering Mechanics, ASCE, Vol. 125, No. 10, 1999, pp. 1140-46.
  17. W. KANOK-NUKULCHAI, and B.T. Tam, "Structure-fluid interaction model of tuned liquid dampers ," Int. J. for Numerical Methods in Engineering, Vol. 46, No. 9, 1999, pp.. 1541-1558.
  18. W. KANOK-NUKULCHAI, N. Pien-wej, A. Naveed, and C. Tangtongchit, "Collapse of a shaft at angkok wastewater pumping station", Structural Engineering International, IABSE, 3, pp. 202-205 (2000)
  19. W. KANOK-NUKULCHAI, "Discretizing ancient pagodas in thailand", Expressions, Bulletin for the International Association for Computational Mechanics, 9, pp. 22-27 (2000)
  20. W. KANOK-NUKULCHAI, W.J. Barry, and K. Saran-Yasoontorn, "Meshless formulation for shear-locking free bending elements", Journal of Structural Engineering and Mechanics, 11, 2(2001), pp. 123-132.
  21. W. KANOK-NUKULCHAI, W.J. Barry, K. Saran-Yasoontorn, and P. H. Bouillard, "On elimination of shear locking in the element-free Galerkin method", Int. J. for Numerical Methods in Engineering, Vol. 52, 2001, pp.705-725.
  22. R.F. Terregosa, and W. KANOK-NUKULCHAI, "Weight Optimization of Steel Frames Using Genetic Algorithm", Advances in Structural Engineering, 5, 2 (2002), pp. 99-111.
  23. P. Tonsuk, and W. KANOK-NUKULCHAI, "Further investigation of element-free Galerkin method usign Kriging interpolation", International Journal of Computational Methods, 1, 2(2004), pp.345-364.
  24. S.C. Han, K.D. Kim and W. KANOK-NUKULCHAI, An element-based 9-node resultant shell element for large deformation analysis of laminated composite plates and shells, Structural Engineering and Mechanics, 18, 6(2004), pp. 807-829.
  25. N. Anwar, W. KANOK-NUKULCHAI, D.N. Batanov, Component-based information oriented structural engineering applications, Journal of Computing in Civil Engineering, ASCE, 19, 1 (2005), pp.45-57.
  26. N. Anwar, and W. KANOK-NUKULCHAI, Framework for a general section designer software component, Computers and Concrete, 1, 3(2004), pp. 303-324.
  27. P. Plengkhom and W. KANOK-NUKULCHAI, An enhancement of finite element method with moving Kriging shape functions, International Journal of Computational Methods, 2, 4 (2005), pp. 451-477
  28. A. Patjawit and W. KANOK-NUKULCHAI, Health monitoring of highway bridges based on a Global Flexibility Index, Engineering Structures, 27(2005), pp. 1385-1391
  29. V. Sayakoummane and W. KANOK-NUKULCHAI, A Meshless Analysis Of Shells Based On Moving Kriging Interpolation, , International Journal of Computational Methods (In Press)
  30. 43. T. Vacharasintopchai, W. Barry, V. Wuwongse and W. KANOK-NUKULCHAI, A Semantic Web Services Framework for Computational Mechanics, Journal of Computing in Civil Engineering, ASCE, 21, 2 [2007] pp. 65-77.
  31. 44. C. Pattamaprom, D. Dechojarassri, and W. Kanok-Nukulchai, Die Wirkung der Vulkarinsationsbedingungen auf das Netzwerk von Ebonit, Gummi Fasern Kunststoffe, Fachmagazin fur die Polymerindustrie, Jahrgang 59, GAK 7 (2006), pp. 428-433.
  32. 45. S.C. Han, H.D. Ham, and W. KANOK-NUKULCHAI, Geometrically Non-linear Analysis of Arbitrary Elastic Supported Plates and Shells using an Element-Based Lagrangian Shell Element, International Journal of Non-linear Mechanics, 43 (2008), pp. 53-64.
  33. 46. W. KANOK-NUKULCHAI and V. Vimuktayon, Suvarnabhumi Airport, J. Structural Engineering International, IABSE, SEI 1 (2009), pp. 1-6.
  34. 47. F.T. Wong and W. KANOK-NUKULCHAI, On the Convergence of the Kriging-Based Finite Element Method, International Journal of Computational Mechanics, 6, 1 (2009), pp. 1–27.
 

Ongoing and Completed Projects

N/A
 

Awards and Honors

  1. 1973 AIT Academic Excellence Award for Top Student in the batch (GPA = 4.0)
  2. 1974-1977 Fulbright scholar
  3. 1977 Earle C. Anthony Award, UC Berkeley.
  4. 1999 Thailand's National Researcher of the Year , National Research Council, Thailand
  5. 2000 Member of the Royal Institute, Thailand
  6. 2002 Thailand's National Researcher of the Year
  7. 2003 Member of Thailand Academy of Science and Technology
  8. 2003 Bestowed the Royal Decoration of the Companion of the Most Admirable Order of Direkgunabhorn (4th class) by H.M. King Bhumibol Adulyadej.
  9. 2006 IACM Fellows Award of the International Association of Computational Mechanics for distinguished record of research accomplishment in the area of computational mechanics
  10. 2006 Outstanding AIT alumnus recognized by the AIT Alumni Association (Mother Chapter)
  11. 2008 The First Nishino Medal, An award in memorial of the late Professor Fumio Nishino, in recognition for international contribution in the area of structural engineering.
 

Professional Affiliations

  1. Member of the Board of Directors of International Construction Technology Information Institute, Japan
  2. Vice President for Asia and member of the Board of Directors of the Global Alliance for Disaster Reduction (GADR), based in Charlotte, North Carolina, USA.(Member)
  3. Vice President of the Engineering Institute of Thailand under H.M. the King's Patronage.
  4. Member of the Executive Council of International Association for Computational Mechanics (IACM)
 

Research Keywords


Computational Mechanics, Finite Element Methods, Degenerated Shell Element, Meshfree Methods, Kriging Interpolation, Structural Health Monitoring Methods