








Faculty : 
Office of the Director (OD) 
Name : 
Dr. Pruettha Nanakorn (Professor) 
Position : 
Assistant Director for Academic Affairs 
E  Mail : 
nanakorn@siit.tu.ac.th 
Phone Rangsit : 
+6629869009, +6629869101, +6625643226 
Phone Bangkadi : 

Phone Extension : 
1102/1906 






 B.Eng. (1^{st }Class Honors) in Civil Engineering, Chulalongkorn University, Thailand
 M.Eng. in Structural Engineering, Asian Institute of Technology (AIT), Thailand
 D.Eng. in Civil Engineering, University of Tokyo, Japan




 2003 Best Teaching Award, Sirindhorn International Institute of Technology.
 Japanese Government (Monbukagakusho) Scholarship, 19911994.
 The Mahesh Varma Prize (Award for the Most Outstanding Structural Engineering and Construction Student), 1991, Asian Institute of Technology (AIT), Thailand.
 The Gold Medal Prize, 1989, Chulalongkorn University, Thailand.




Computational mechanics, Finite element technology, Structural optimization, Design automation. 



Automation in Structural Design
Structural design can be classified into several design tasks. These tasks need different degrees of human intuition. Those design tasks that require little human intuition and can be systematically written as algorithms may be easily delegated to computers. In contrast, other design tasks that require a lot of human intuition and do not have clear algorithms cannot be done without designers’ experiences. Although it may seem that some of the heuristic design tasks are not difficult and can be handled quite easily even by engineers, in practice, these easy tasks unfortunately prevent the whole design process from being completely automated. In this research area, artificial intelligence (AI) and other advanced computing technologies will be used to remove these hindrances, created by heuristic design tasks, in order that complete structural design automation can be developed.
Advanced Finite Element Analysis
It can be safely said that the finite element method (FEM) is currently the best method for solving mechanical problems. The method has been continuously developed and its progress is quite noticeable. Nevertheless, the development of FEM has been mainly concentrated on the theoretical part of the method. It is now time to integrate new computing technologies with FEM in order that advanced finite element analysis can be performed with ease. In this research area, advanced computing technologies, such as new programming technologies, artificial intelligence, information technologies, and database technologies, will be used to improve the performance and usability of FEM. 



Master Theses Supervised 

2010: 
Nattapon Chantarapanich. Determination of the Correction Angle for the Treatment of Early State Knee Osteoarthritis by the High Tibial Osteotomy. 
2009: 
Kanchana Suranga Kahatadeniya. Determination of the Critical Failure Surface for Slope Stability Analysis Using Ant Colony Optimization. 
2005: 
Vu Long Nhu. A 2D Fieldconsistent Beam Element for Large Displacement Analysis Using the Total Lagrangian Formulation. 
2004: 
Nont Nimityongskul. An Ant Colony Optimization Algorithm for Sizing Optimization of Structures. 
2003: 
Chantima Somprasert. An ObjectOriented Model for Combined Implementation of the Finite Element and Meshless Methods. 
2001: 
Yupaporn Thanyakriengkrai. Neural Networks for Structural Design Optimization Using Genetic Algorithms. 
2001: 
Vasan Thitawat. Stability and Bifurcation Analysis of Crack Patterns in QuasiBrittle Materials. 
2000: 
Preecha Soparat. A Mixed Finite Element Formulation for Analysis of Cracking Localization in QuasiBrittle Materials. 
2000: 
Konlakarn Meesomklin. A Novel Penalty Scheme in Genetic Algorithms for Structural Design Optimization. 
1998: 
Aruz Petcherdchoo. Analysis of Cracking Localization in QuasiBrittle Materials Using the Smeared Crack Approach.

Doctoral Theses Supervised 

2010: 
Anan Nimtawat. Layout Design of Beamslab Floors Using a Genetic Algorithm. 
2009: 
Ekachai Chaichanasiri. A Study on Mechanical Behavior of Bone Surrounding a Dental Implant by Finite Element Contact Analysis. 
2008: 
Preecha Soparat. Analysis of Crack Growth in Concrete by the Elementfree Galerkin Method.
 




 1996Present: SIIT
 2014Present: Assistant Director for Academic Affairs, SIIT
 20122014: Assistant Director for General Administration, Ransit Campus, SIIT
 20092012: Executive Assistant Director for Rangsit Campus, SIIT
 20042009: Head, School of Civil Engineering and Technology, SIIT
 19992004: Chairperson, Civil Engineering Program, SIIT
 19971999: Deputy Chairperson, Civil Engineering Department, SIIT
 19941996: Assistant Professor, The University of Tokyo, Japan




Book Chapter (1 chapter)
 Nanakorn P, Nimtawat A. Layout design of beam–slab floors by a genetic
algorithm, Metaheuristic Applications in Structures and Infrastructures, edited
by Amir Hossein Gandomi, XinShe Yang, Siamak Talatahari, Amir Hossein Alavi,
Elsevier, 2013: 147171.
International Journals (16 papers)
International Journals with Impact Factors (12 papers)
 Tunsakul J, Jongpradist P, Soparat P, Kongkitkul W, Nanakorn P. Analysis of
fracture propagation in a rock mass surrounding a tunnel under high internal
pressure by the elementfree Galerkin method. Computers and Geotechnics 2014;55
(January 2014): 7890. [ISI Impact Factor 2012 = 1.224]
 Nimtawat A, Nanakorn P. A genetic algorithm for beam–slab layout design of
rectilinear floors. Engineering Structures 2010;32(11): 34883500. [ISI Impact
Factor 2010 = 1.363]
 Chaichanasiri E, Nanakorn P, Tharanon W, Sloten JV. A finite element study
of the effect of contact forces between an implantretained crown and its
adjacent teeth on bone stresses. Journal of Mechanics 2009;25(4):44150. [ISI
Impact Factor 2009 = 0.610]
 Nimtawat A, Nanakorn P. Automated layout design of beamslab floors using a
genetic algorithm. Computers and Structures 2009;87(2122):130830. [ISI Impact
Factor 2009 = 1.440]
 Kahatadeniya KS, Nanakorn P, Neaupane KM. Determination of the critical
failure surface for slope stability analysis using ant colony optimization.
Engineering Geology 2009;108(12):13341. [ISI Impact Factor 2009 = 1.212]
 Soparat P, Nanakorn P. Analysis of anchor bolt pullout in concrete by the
elementfree Galerkin method. Engineering Structures 2008;30(12):357486. [ISI
Impact Factor 2008 = 1.102]
 Soparat P, Nanakorn P. Analysis of cohesive crack growth by the elementfree
Galerkin method. Journal of Mechanics 2008;24(1):4554. [ISI Impact Factor 2008
= 0.644]
 Neaupane KM, Nanakorn P. Coupled heatdeformationflow analysis for clayey
soil. Journal of Geotechnical and Geoenvironmental Engineering, American Society
of Civil Engineers 2006;132(4):5215. [ISI Impact Factor 2006 = 0.646]
 Nanakorn P, Vu LN. A 2D fieldconsistent beam element for large displacement
analysis using the total lagrangian formulation. Finite Elements in Analysis and
Design 2006;42(1415):12407. [ISI Impact Factor 2006 = 0.762]
 Nanakorn P. A twodimensional beamcolumn finite element with embedded
rotational discontinuities. Computers and Structures 2004;82(910):75362. [ISI
Impact Factor 2004 = 0.741]
 Nanakorn P, Meesomklin K. An adaptive penalty function in genetic algorithms
for structural design optimization. Computers and Structures
2001;79(2930):252739. [ISI Impact Factor 2001 = 0.418]
 Nanakorn P, Horii H. A fracturemechanicsbased design method for SFRC
tunnel linings. Tunnelling and Underground Space Technology 1996;11(1 SPEC.
ISS.):3943. [ISI Impact Factor 1996 = 0.110]
International Journals (4 papers)
 Chantarapanich N, Nanakorn P, Chernchujit B, Sitthiseripratip K. A finite
element study of stress distributions in normal and osteoarthritic knee joints.
Journal of the Medical Association of Thailand 2009;92(6):S97S103.
 Chaichanasiri E, Nanakorn P, Tharanon W, Sloten JV. Finite element analysis
of bone around a dental implant supporting a crown with a premature contact.
Journal of the Medical Association of Thailand 2009;92(10):133644.
 Nanakorn P, Horii H, Matsuoka S. A fracture mechanicsbased design method
for SFRC tunnel linings. Journal of materials, concrete structures and
pavements, Japan Society of Civil Engineers 1996;30(532):22133.
 Nanakorn P, Horii H. Back analysis of tensionsoftening relationship of
concrete. Journal of materials, concrete structures and pavements, Japan Society
of Civil Engineers 1996;32(544):26575.
National Journals (11 papers)
 Soparat P, Nanakorn P. Modeling of cohesive cracks in the elementfree
Galerkin method. Research and development journal of the Engineering Institute
of Thailand 2006;17(4):111.
 Nanakorn P, Vu LN. A 2D EulerBernoulli beam element for large displacement
analysis. Research and development journal of the Engineering Institute of
Thailand 2006;17(2):3948.
 Nanakorn P, Somprasert C. A program design for combined implementation of
the finite element and meshless methods by objectoriented modeling. Research
and development journal of the Engineering Institute of Thailand
2003;14(4):2133.
 Nanakorn P, Meesomklin K, Somprasert C, Nimityongskul N. Sizing optimization
of structures by an ant colony optimization algorithm. Research and development
journal of the Engineering Institute of Thailand 2003;14(1):818.
 Nanakorn P, Thanyakriengkrai Y. Artificial neural networks for evaluation of
constraint violation in structural optimization by genetic algorithms. Research
and development journal of the Engineering Institute of Thailand
2002;13(2):617.
 Nanakorn P, Thitawat V. Cracking localization analysis using a specially
treated smeared crack finite element model with energy consideration. Research
and development journal of the Engineering Institute of Thailand
2001;12(3):1120.
 Nanakorn P, Soparat P. Finite element analysis of cracking localization: The
smeared crack approach with a mixed formulation. Thammasat international journal
of science and technology 2000;5(3):2839.
 Nanakorn P, Petcherdchoo A, Kittiwattanchai N. Analysis of cracking
localization using the smeared crack approach. Research and development journal
of the Engineering Institute of Thailand 2000;11(4):19.
 Nanakorn P, Meesomklin K. A novel penalty scheme in genetic algorithms for
structural design optimization. ASEAN journal on science and technology for
development 2000;17(2):1730.
 Nanakorn P. Finite element analysis of problems involving material
nonlinearity by the equivalent inclusion method. Research and development
journal of the Engineering Institute of Thailand 2000;11(1):209.
 Nanakorn P, Horii H. A fracture mechanicsbased design method for the
estimation of the sectional capacity of SFRC tunnel linings. Journal of the
Graduate School and Faculty of Engineering, the University of Tokyo (B)
1996;XLIII(4):36595.
International Conferences (35 papers)
 Sam, P., Theerakittayakorn, K., and Nanakorn, P. (2014) Symbolic finite element programming for closedform analysis of unit cells of 2D periodic cellular solids, In Proceedings of the 6th Asia and Pacific Young Researchers and Graduates Symposium (YRGS 2014), 31 July – 1 August 2014, Pathum Thani, Thailand, 1518.
 Nanakorn, P., Petprakob, W., and Naga, V. C. K. (2014) Objectoriented
programming for topology optimization of steel truss structures by
multipopulation particle swarm optimization, In Proceedings of the
12^{th} International Conference on Steel, Space & Composite
Structures, 2830 May 2014, Prague, Czech Republic, CDROM, 275283.
 Theerakittayakorn, K. and Nanakorn, P. (2013) Periodic boundary conditions
for unit cells of periodic cellular solids in the determination of effective
properties using beam elements, In Proceedings of the 2013 World Congress on
Advances in Structural Engineering and Mechanics (ASEM13), 812 September 2013,
Jeju, Korea, CDROM, 37383748.
 Theerakittayakorn, K., Nanakorn, P., Paklacksame, P., Meksang, T., and
Wangsittikul, C. (2013) Objectoriented programming for topology design or
trusses by a genetic algorithm, In Proceedings of the Thirteenth East
AsiaPacific Conference on Structural Engineering and Construction (EASEC13),
1113 September 2013, Sapporo, Japan, CDROM, 6 p.
 Nimtawat, A. and Nanakorn, P. (2011) Simple particle swarm optimization for
solving beamslab layout design problems, in Proceedings of the Twelfth East
AsiaPacific Conference on Structural Engineering and Construction (EASEC12),
2628 January 2011, Hong Kong, China, 8 p.
 Chaichanasiri, E., Nanakorn, P., Tharanon, W. and Sloten, J.V. (2010)
Simulation of an Occlusal Interference of an Implant Crown, in Proceedings of
the 1st TSME International Conference on Mechanical Engineering (TSMEICoME
2010), 2022 October 2010, Ubon Ratchathani, Thailand, CDRom, 6 p.
 Kahatadeniya, K.S., Nanakorn, P. and Neaupane, K.M. (2008) Ant colony
optimization for slope stability analysis, in Proceedings of GeoChiangmai 2008:
An International Conference on Geotechnical Engineering (eds. Aniruth Thongchai,
M. Isabel M Pinto, and Chitchai Anantasech), 1012 December 2008, Chiangmai,
Thailand, CIPremier, 195202.
 Nimtawat, A. and Nanakorn, P. (2008) A genetic algorithm for solving layout
design problems of rectilinear floor plans, in Proceedings of the 11th East
AsiaPacific Conference on Structural Engineering and Construction (EASEC11)
(eds. YeongBin Yang, LiangJenq Leu, ChuinShan Chen, and PoChieh Su), 1921
November 2008, Taipei, Taiwan, National Taiwan University, CDRom: ISBN:
9789868022249.
 Chaichanasiri, E., Nanakorn, P., Tharanon, W. and Vander Sloten, J. (2008) A
numerical study on a premature contact of an implantretained crown, in
Proceedings of the 3rd International Symposium on Biomedical Engineering (ISBME
2008), 1011 November 2008, Bangkok, Thailand, King Mongkut’s Institute of
Technology Ladkrabang (KMITL), 4851, CDRom.
 Nimtawat, A. and Nanakorn, P. (2008) Automated layout design of beamslab
floors, in Proceedings of the Fourth International Conference on Advances in
Structural Engineering and Mechanics (ASEM’08) (ed. ChangKoon Choi), 2628 May
2008, Jeju, Korea, Korea Advanced Institute of Science & Technology and
Korea Association of Computational Mechanics, 415424, CDRom.
 Nimtawat, A. and Nanakorn, P. (2008) A genetic algorithm for beamslab
layout design, in Proceedings of the 12th Annual Symposium on Computational
Science and Engineering (ANSCSE 12), 2729 March 2008, Ubon Ratchathani,
Thailand, 284289.
 KanokNukulchai, W., Wijaya, G. B., Nanakorn, P., Nimtawat, A., Bui, T. T.
and Buachart, C. (2006) A finite element method for tsunami propagation, in
Proceedings of the 5th International Symposium on New Technologies for Urban
Safety of Mega Cities in Asia (USMCA 2006) (eds. Yoshitaka Kato, Raktipong
Sahamitmongkol), 1617 November 2006, Phuket, Thailand, 3745.
 Chaichanasiri, E., Nanakorn, P., Tharanon, W. and Vander Sloten, J. (2006) A
numerical study of bone stress distributions around a dental implant: influence
of adjacent teeth, in Proceedings of the 2nd International Symposium on
Biomedical Engineering (ISBME 2006) (ed. Jackrit Suthakorn), 810 November 2006,
Bangkok, Thailand, Mahidol University, 150152.
 Nanakorn, P. and Vu, L.N. (2006) Fieldconsistent interpolations for a 2D
total Lagrangian geometrically nonlinear beam element, in Analytical and
Computational Methods, Proceedings of the 10th East AsiaPacific Conference on
Structural Engineering and Construction (EASEC10) (eds. Worsak KanokNukulchai,
Naveed Anwar, Sunil Munasinghe), 35 August 2006, Bangkok, Thailand, Asian
Institute of Technology, 107112.
 Neaupane, K., Nanakorn, P., Sirayapivat, O. and Kanborirak, S. (2005)
Effects of temperature on 1D consolidation characteristics of clayey soil, in
Proceedings of the 16th International Conference on Soil Mechanics and
Geotechnical Engineering (16ICSMGE), 1216 September 2005, Osaka, Japan,
Millpress, 417420.
 Nanakorn, P. and Nimityongskul, N. (2004) An ant colony optimization
approach for combinatorial optimization of structures, in Proceedings of the
Third International Conference on Advances in Structural Engineering and
Mechanics (ASEM’04) (eds. ChangKoon Choi, SunHoon Kim, HyoGyong Kwak), 24
September 2004, Seoul, Korea, Korea Advanced Institute of Science &
Technology, 216232.
 Nanakorn, P. and Somprasert, C. (2003) An objectoriented model for combined
implementation of the finite element and meshless methods. in Proceedings of the
Ninth International Conference on Enhancement and Promotion of Computational
Methods in Engineering and Science (EPMESC IX) (eds. V.P. Iu, L.N. Lamas, Y.P.
Li, and K.M. Mok), 2528 November 2003, Macao, China, A.A. Balkema Publishers,
Lisse, 581588.
 Nanakorn, P. and Thitawat, V. (2001) Analysis of cracking localization by
the smeared crack approach: the fourpoint bending problem, in Proceedings of
the Eight East AsiaPacific Conference on Structural Engineering &
Construction, Nanyang Technological University, Singapore, CD Rom: ISBN:
9810457448.
 Nanakorn, P. and Thanyakriengkrai, Y. (2001) Neural networks in genetic
algorithms for structural design optimization, in Proceedings of the Eight East
AsiaPacific Conference on Structural Engineering & Construction, Nanyang
Technological University, Singapore, CD Rom: ISBN: 9810457448.
 Nanakorn, P. and Soparat, P. (2000) A mixed finite element formulation for
analysis of cracking localization in quasibrittle materials, in Proceedings of
European Congress on Computational Methods in Applied Sciences and Engineering:
ECCOMAS 2000, European Community on Computational Methods in Applied Sciences,
Barcelona, Spain, CD Rom: ISBN: 8489925704.
 Nanakorn, P. and Meesomklin, K. (2000) An adaptive penalty function in
genetic algorithms for structural design optimization, in Proceedings of
European Congress on Computational Methods in Applied Sciences and Engineering:
ECCOMAS 2000, European Community on Computational Methods in Applied Sciences,
Barcelona, Spain, CD Rom: ISBN: 8489925704.
 Chaisomphob, T., Lertsima, C. and Nanakorn, P. (1999) Some comments on
current design practice of multigirder steel bridges under vehicle loads in
Thailand, in Proceedings of the Seventh East AsiaPacific Conference on
Structural Engineering & Construction (eds. Hajime Okamura and Hiroshi
Shima), Vol. 1, Kochi University of Technology, Kochi, 513518.
 Nanakorn, P., Chaisomphob, T. and Warnitchai, P. (1999) Fatigue evaluation
of steel bridges by measurement data and finite element analysis, in Proceedings
of the Seventh East AsiaPacific Conference on Structural Engineering &
Construction (eds. Hajime Okamura and Hiroshi Shima), Vol. 1, Kochi University
of Technology, Kochi, 201206.
 Petcherdchoo, A., Nanakorn, P. and Kittiwattanachai, N. (1999) A smeared
crack finite element for analysis of cracking localization, in Proceedings of
the First International Conference on Advances in Structural Engineering and
Mechanics (eds ChangKoon Choi and William C. Schnobrich), Vol. 1, TechoPress,
Taejon, 399404.
 Nanakorn, P. and Petcherdchoo, A. (1999) Analysis of cracking localization
using the smeared crack approach, in International Association for Bridge and
Structural Engineering (IABSE) Report, Vol. 80, IABSE, Phuket, 241246.
 Nanakorn, P. (1998) Roles of Thai government in earthquake disaster
prevention and mitigation, in Proceedings of the 1st AsiaPacific Workshop on
Research Coalition for Urban Earthquake Disaster Management, Earthquake Disaster
Mitigation Research Center and Science and Technology Agency, Japan, 119123.
 Nanakorn, P. (1998) Shape functions for a finite element with an embedded
circular void, in Structural Engineering and Construction: Tradition, Present
and Future, Proceedings of the Sixth East AsiaPacific Conference on Structural
Engineering and Construction (eds. YeongBin Yang and LiangJenq Leu), Vol. 1,
National Taiwan University, Taipei, 219224.
 Nanakorn, P. and Horii, H. (1996) A fracture mechanicsbased design method
for SFRC tunnel linings, in Materials for the New Millennium, Proceedings of the
Fourth Materials Engineering Conference (ed. K. P. Chong), Vol. 1, ASCE,
819828.
 Nanakorn, P. and Horii, H. (1996) Back analysis of tensionsoftening
relationship, in Proceedings of the Third AsianPacific Conference on
Computational Mechanics (ed. C. Choi, C. Yun and D. Lee), Vol. 1, TechnoPress,
389394.
 Horii, H., Nanakorn, P. and Kabele, P. (1995) Application of fracture
mechanics to design of SFRC tunnel linings and development of strainhardening
cementitious composites, in Fracture Mechanics of Concrete Structures,
Proceedings FRAMCOS2 (ed. Folker H. Wittmann), AEDIFICATIO, Germany, 13451360.
 Nanakorn, P. and Horii, H. (1995) A finite element with embedded
displacement discontinuity, in Building for the 21st Century, Proceedings of the
Fifth East AsiaPacific Conference on Structural Engineering and Construction
(ed. Y.C. Loo), Vol. 1, Giffith University (Gold Coast Campus), Australia,
3338.
 Nanakorn, P. and Horii, H. (1995) A fracture mechanicsbased design method
for SFRC tunnel lining, in Proceedings of the South East Asian Symposium on
Tunnelling and Underground Space Development, Japan Tunnelling Association,
7178.
 KanokNukulchai, W. and Nanakorn, P. (1994) A generic finite element for
largedisplacement thinwalled structures, in Proceedings of the Third World
Congress on Computational Mechanics Extended Abstracts, Vol. II, International
Association for Computational Mechanics, 12931294.
 KanokNukulchai, W. and Nanakorn, P. (1991) An efficient degenerate element
for large deformation analysis of thinwalled structures, in Computational
Mechanics (eds. Y.K. Cheung, J.H.W Lee and A.Y.T. Leung), A.A.Balkema,
Rotterdam, 475480.
 Horii, H. and Nanakorn, P. (1993) Fracture mechanics based design of SFRC
tunnel lining, in Size Effect in Concrete Structures (ed. H. Mihashi, H. Okamura
and Z.P. Bazant), E&FN Spon, London, 429440.
National Conferences (14 papers)
 KanokNukulchai, W., Nanakorn, P., Nimtawat, A., Buachart, C. and Bui, T. T.
(2008) Finite element modelling of tsunami propagation on the west coast of
Thailand, in Proceedings of the 13th National Convention on Civil Engineering,
1416 May 2008, Pattaya, Thailand, The Engineering Institute of Thailand,
WRE004, CD Rom.
 Nimtawat, A. and Nanakorn, P. (2008) Design automation for beamslab
layouts, in Proceedings of the 13th National Convention on Civil Engineering,
1416 May 2008, Pattaya, Thailand, The Engineering Institute of Thailand,
STR005, CD Rom.
 Nanakorn, P. and Vu, L. N. (2006) A total Lagrangian geometrically nonlinear
beam element for 2D large displacement analysis, in Proceedings of the 11th
National Convention on Civil Engineering, 2022 April 2006, Phuket, Thailand,
The Engineering Institute of Thailand, STR051, CD Rom.
 Soparat, P. and Nanakorn, P. (2005) Analysis of crack growth in concrete by
the elementfree Galerkin method, in Proceedings of the Tenth National
Convention on Civil Engineering, 24 May 2005, Cholburi, Thailand, The
Engineering Institute of Thailand, (COM36)(COM40).
 Nanakorn, P. (2004) A novel twodimensional beamcolumn finite element with
multiple inelastic hinges, in Proceedings of the Ninth National Convention on
Civil Engineering, 1921 May 2004, Petchaburi, Thailand, The Engineering
Institute of Thailand, (STR240)(STR245).
 Nanakorn, P., Meesomklin, K., Nimityongskul, N. and Somprasert, C. (2002) An
ant colony optimization algorithm for structural design optimization, in
Proceedings of the Eighth National Convention on Civil Engineering, 2325
October 2002, Khon Kaen, Thailand, The Engineering Institute of Thailand,
(STR416)(STR421).
 Nanakorn, P. and Soparat, P. (2000) A mixed finite element formulation for
analysis of cracking localization in quasibrittle materials, in Proceedings of
the Sixth National Convention on Civil Engineering, The Engineering Institute of
Thailand under H.M. the King’s Patronage, (STR31)(STR36).
 Nanakorn, P. and Meesomklin, K. (2000) Adaptive penalty functions in genetic
algorithms for structural design optimization, in Proceedings of the Sixth
National Convention on Civil Engineering, The Engineering Institute of Thailand
under H.M. the King’s Patronage, (STR7)(STR18), (Invited Paper).
 Nanakorn, P., Meesomklin, K., Srisumran, T., Thitawat, V. and
Tanyakreingkrai, Y. (1999) Genetic algorithms for structural design optimization
by objectoriented programming technique, in Proceedings of the Fifth National
Convention on Civil Engineering, The Engineering Institute of Thailand under
H.M. the King’s Patronage, (STR172)(STR179).
 Nanakorn, P., Chaisomphob, T. and Warnitchai, P. (1999) Finite element
analysis in fatigue evaluation of steel bridges, in Proceedings of the Fifth
National Convention on Civil Engineering, The Engineering Institute of Thailand
under H.M. the King’s Patronage, (STR149)(STR156).
 Nanakorn, P. (1997) Analysis of problems involving material nonlinearity by
the equivalent inclusion method, in Proceedings of the Fourth National
Convention on Civil Engineering, The Engineering Institute of Thailand under
H.M. the King’s Patronage, (STR 91)(STR 96).
 Nanakorn, P. and Horii, H. (1996) An efficient finite element for problems
involving displacement discontinuity, in Proceedings of the Third National
Convention on Civil Engineering, The Engineering Institute of Thailand under
H.M. the King’s Patronage, STR15/1STR15/9.
 Nanakorn, P. and Horii, H. (1994) A fracture mechanicsbased design method
for SFRC tunnel lining, in Proceedings of the 49th Annual Conference of JSCE.
 Nanakorn, P. and Horii, H. (1993) Back analysis of tension softening
relationship, in Proceedings of the 48th Annual Conference of JSCE.









