Akhrawat Lenwari, PhD
Professor, Structural Engineering
Department of Civil Engineering
Faculty of Engineering
Chulalongkorn University
Phayathai Rd., Pathumwan, Bangkok
10330 THAILAND
Phone:
02-218-6693, Fax: 02-251-7304
Email: akhrawat.l@chula.ac.th
Education
B.Eng.
(Honors), Department
of Civil Engineering, Chulalongkorn
University, Thailand, 1998.
Ph.D., Department of Civil Engineering, Chulalongkorn University, Thailand, 2003.
Research Interests
Strengthening
and repair of bridges and buildings, fatigue and fracture mechanics, finite
element analysis, advanced structural analysis, adhesive-bonded joints, fiber-reinforced
composite materials, and composite structures.
Work
Experience
Professor,
Department of Civil Engineering, Chulalongkorn University, 2020-present.
Associate
Professor, Department of Civil Engineering, Chulalongkorn University, 2011-2020.
Lecturer,
Department of Civil Engineering, Chulalongkorn University, 2007-2011.
Lecturer,
Department of Civil Engineering, Srinakharinwirot
University, 2007.
Post-Doctoral
Researcher, Department of Civil and Environmental Engineering, University of
Maryland, College Park, USA, 2003-2006.
Professional
Activities
Registered
Civil Engineer, Council of Engineers (Thailand).
Member,
Subcommittee on Steel Structures, Engineering Institute of Thailand (2010-present).
Published
Journal Papers
o
Lenwari,
A., Thepchatri,
T., and Watanabe, E. (2002). “Prediction of Premature Separation of Bonded CFRP
Plates from Strengthened Steel Beams Using a Fracture Criterion.” Structural Engineering and Mechanics,
Vol.14, No. 5, 565-574.
o
Lenwari, A., Albrecht, P., and Albrecht, M. (2005).
“SED Method of Measuring
Yield Strength of Adhesives and Other Materials.” Journal of ASTM
International, Vol. 2, No. 10, 377-394.
o
Lenwari, A., Thepchatri, T., and Albrecht, P. (2005).
“Flexural Response
of Steel Beams Strengthened with Partial-Length CFRP Plates.” Journal of Composites for Construction,
ASCE, Vol. 9, No. 4,
296-303.
o
Lenwari, A., Thepchatri, T., and Albrecht, P. (2006).
“Debonding Strength of Steel Beams Strengthened
with CFRP Plates.” Journal
of Composites for Construction, ASCE,
Vol. 10, No. 1, 69-78.
o
Albrecht, P. and Lenwari, A. (2006). “Stress Intensity Factor for
Center-Cracked Plate with Crack Surface Interference.” Engineering Fracture
Mechanics, Vol. 73, No. 8, 1035-1045.
o
Albrecht, P. and Lenwari, A. (2007). “Fatigue-Proofing Cover Plates.” Journal
of Bridge Engineering, ASCE, Vol. 12, No. 3, 275-283.
o
Albrecht, P. and Lenwari, A. (2008). “Fatigue Strength of Trolley Bridge
Stringers Made of ASTM A7 Steel.” Journal of Bridge Engineering, ASCE,
Vol. 13, No. 1, 67-74.
o
Albrecht, P., Lenwari, A., and Feng, D. (2008). “Stress Intensity Factors for Structural
Steel I-Beams.” Journal of Structural Engineering, ASCE, Vol. 134, No.
3, 421-429.
o
Albrecht, P. and Lenwari, A. (2008). “Fatigue Strength
of Repaired Prestressed Composite Beams.” Journal of Bridge Engineering, ASCE, Vol. 13, No. 4, 409-417.
o
Albrecht, P. and Lenwari, A. (2008). “Design of Prestressing Tendons for
Strengthening Steel Truss Bridges.” Journal of Bridge Engineering, ASCE,
Vol. 13, No. 5, 449-454.
o
Lenwari, A.
and Thepchatri, T. (2009). “Experimental Study on RC
Beams Strengthened with Carbon and Glass Fiber Sheets.” Engineering Journal,
Vol. 13, no. 2, 9-18.
o
Albrecht,
P. and Lenwari, A. (2009). “Variable Amplitude Fatigue Strength of
Structural Steel Bridge Details: Review and Simplified Model.” Journal of
Bridge Engineering, ASCE, Vol. 14, No. 4, 226-237.
o
Albrecht, P. and Lenwari, A. (2009).
“Fatigue Strength of Weathered A588 Steel Beams.” Journal of Bridge
Engineering, ASCE, Vol. 14, No. 6, 436-443.
o
Lenwari, A., Thepchatri, T., and Santisukpotha,
P. (2012). “A Fracture-Based Criterion for Debonding Strength of Adhesive-Bonded
Double-Strap Steel Joints.” Engineering Journal, Vol. 16, No.
1, 17-25.
o
Lenwari, A. and
Chen, H. (2013). “Finite Element Analysis of Distortion-Induced Web Gap
Stresses in Multi-I Girder Steel Bridges." Engineering
Journal, Vol. 17, No. 1, 95-109.
o
Dinh, H.T.,
Lenwari, A., Senjuntichai T, and Hayashikawa T. (2013). “Finite Element Simulation of Mixed-Mode
Crack Propagation Based on Strain Energy Density Criterion.” ASEAN
Engineering Journal Part C, Vol. 2, No. 2, 66-77.
o
Dinh, H.T.,
Lenwari, A., Senjuntichai T, and Hayashikawa T. (2014). “Distortion-Induced Fatigue Cracking
at Web-Gap of Welded I-Beams.” ASEAN Engineering Journal Part C, Vol. 3,
No, 1, 9-20.
o
Ky, V.S., Lenwari, A., and Thepchatri, T. (2015). “Optimum Design of Steel Structures
in Accordance with AISC 2010 Specification Using Heuristic Algorithm.” Engineering
Journal, Vol. 19, No. 4, 71-81.
o
Wantanasiri, P.
and Lenwari, A. (2015). “Intermediate Crack-Induced Debonding Analysis for
RC Beams Strengthened with FRP Plates.” Structural Engineering and Mechanics,
Vol. 56, No. 3, 473-490.
o
Lenwari, A., Rungamornrat, J., and Woonprasert,
S. (2016). “Axial Compression Behavior of Fire-Damaged Concrete Cylinders Confined
with CFRP Sheets.” Journal
of Composites for Construction, ASCE, Vol.
20, No. 5, 04016027.
o
Tiantongnukul, S. and
Lenwari, A. (2017). “Thermal Analysis for Peak Temperature Distribution in Reinforced
Concrete Beams After Exposure to ASTM E119 Standard Fire.” Engineering
Journal, Vol. 21, No. 4, 243-258.
o
Triamlumlerd, W.
and Lenwari, A. (2017). “Analysis of Fatigue Crack Propagation in Steel
I-Beams with Welded Transverse Stiffeners Subjected to In-plane Loadings.” Engineering
Journal, Vol. 21, No. 4, 307-324.
o
Lenwari, A. and
Ma, H.C. (2019). “Stress Intensity Factor for Wide-Flange Steel Member with Crack
Surface Interference.” Journal of Constructional Steel Research, Vol.
153, 310-319.
o
Thongchom, C.,
Lenwari, A., and Aboutaha, R.S. (2019).
“Effect of Sustained Service Loading on Post-Fire Flexural Response of RC T-Beams.”
ACI Structural Journal, Vol. 116, No. 3, 243-254.
o
Anuntasena, W.,
Lenwari, A., and Thepchatri, T. (2019). “Finite
Element Modelling of Concrete-Encased Steel Columns Subjected to Eccentric
Loadings.” Engineering Journal, Vol. 23, No. 6, 299-310.
o
Horsangchai, V.
and Lenwari, A. (2020). “Evaluation of AISC 360-16 and Eurocode 4
Compressive Strength Equations for Concrete-Filled Steel Tube Columns.” Engineering
Journal, Vol. 24, No. 1, 89-104.
o
Prasertsri, T.,
Lenwari, A., and Thepchatri, T. (2020). “Flexural
Response of CFRP-Strengthened Steel Beams with Initial Bond Defects.” Engineering
Journal, Vol. 24, No. 1, 115-127.
o
Thongchom, C.,
Lenwari, A., and Aboutaha, R.S. (2020). “Bond Properties
Between Carbon Fibre-Reinforced Polymer Plate and Fire-Damaged
Concrete.” International Journal of Adhesion and Adhesives, Vol. 97, 102485.
o
Do, B., and Lenwari, A. (2020).
“Optimization of Fiber-Reinforced Polymer Patches for Repairing Fatigue Cracks
in Steel Plates Using a Genetic Algorithm.” Journal of Composites for Construction, ASCE,
Vol. 24, No. 2, 04020006.
o
Lenwari, A., Thongchom, C., and Aboutaha, R.S.
(2020). “Cyclic Flexural Performance of Fire-Damaged RC Beams Strengthened with
CFRP Plates.” ACI Structural Journal, 117(6), 133-146.
o
Anuntasena, W.,
Lenwari, A., and Thepchatri, T. (2020). “Axial
Compression Behavior of Concrete-Encased Cellular Steel Columns.” Journal of
Constructional Steel Research, 172, 106220.
o
Jongvivatsakul, P.,
Thongchom, C., Mathuros,
A., Prasertsri, T., Adamu, M., Orasutthikul,
S., Lenwari, A., and Tawatchai Charainpanitkul (2022). “Enhancing Bonding Behavior Between
Carbon Fiber-Reinforced Polymer Plates and Concrete Using Carbon Nanotube Reinforced
Epoxy Composites.”, Case Studies in Construction Materials, 17, e01407.
o
Bangprasit, P.,
Anuntasena, W., and Lenwari, A. (2022). “Axial
Load-Strain Relationships of Partially Encased Composite Columns With H-Shaped Steel
Sections.”, Steel and Composite Structures, 45(1), 051-66.
Papers
in Conference Proceedings
o
Lenwari,
A., Likitlersuang,
S., Taetiangthum, S., and Teachavorasinskun,
S. (1999). “Behavior of Soil under Unloading Condition.” The 5th National Convention on Civil Engineering,
Chonburi, Thailand, GTE173-178.
o
Lenwari,
A. and Thepchatri, T. (2001). “Prediction of Failure Load in Steel
Beams Bonded with CFRP Plates Due to Fracture at Plate Ends Using Stress
Singularity Parameter.” The 14th
KKNN Symposium on Civil Engineering, Kyoto, Japan, 259-265.
o Pinkaew, T. and Lenwari, A. (2002). “Field Performance Test of R/C Beams Strengthened by Carbon Fiber Sheets.” The 8th National Convention on Civil Engineering, Konkaen, Thailand, STR392-397.
o
Lenwari, A., Albrecht, P., and Albrecht, M.
(2005). “SED Method of
Measuring Yield Strength of Adhesives and Other Materials.” Advances in
Adhesives, Adhesion Science, and Testing, ASTM STP 1463, D. Damico, Ed.,
American Society for Testing and Materials, Washington, D. C., 35-52.
o
Senjuntichai,
T. and Lenwari, A. (2008). “Three-Dimensional Finite Element Analysis of
Flyover Steel Bridges.” The 4th International Conference on Advances
in Structural Engineering and Mechanics (ASEM’08), Jeju,
Korea, May 26-28, 435-444.
o
Hidayat, M.S.
and Lenwari, A. (2009). “Effects of Bridge Parameters on
Distortion-Induced Fatigue in Multi I-Girder Steel Bridges.” The 1st
ASEAN Civil Engineering Conference, Pattaya, Thailand, March 12-13.
o
Lenwari, A.
(2009). “Compliance Ratio Method for Calculating Energy Release Rates in
Structural Steels.” The 41st ASCE Structures Congress 2009,
Austin, Texas, April 30-May 2009, pp. 2169-2178.
o
Lenwari,
A., Senjuntichai,
T., Pinkaew, T., Thepchatri,
T., and Limsuwan, E. (2009). “Field
investigation on slab-on-girder steel bridges over intersections in Thailand.” The
33rd IABSE
Symposium, Bangkok,
Thailand, September 9-11, 2009.
o
Santisukpotha, P.,
Lenwari, A., and Thepchatri, T. (2009). “Debonding Strength of FRP-Plated Steel
Beams Subjected to Constant Amplitude Fatigue Loadings.” The 22nd
KKCNN Symposium on Civil Engineering, Chiangmai, Thailand, October 31-
November 2, 2009, pp. 205-210.
o
Dinh, H.T.,
Lenwari, A., and Senjuntichai, T. (2011). “Finite Element
Modeling of 2D Mixed-Mode Crack Propagation Using Strain Energy Density Criterion.”
The 4th ASEAN Civil Engineering Conference, Yogyakarta, Indonesia,
22-23 November 2011 (CD-ROM).
o
Prasertsri, T.,
Lenwari, A., and Rungamornrat, J. (2013).
“Finite Element Analysis of Strength and Ductility of Concrete Cylinders
Partially Confined with FRP Sheets Using Drucker-Prager Yield Criterion.” The
6th ASEAN Civil Engineering Conference, Bangkok, 21-22 November 2013, pp. CE28-1
to CE28-10.
o
Dinh,
H.T., Lenwari, A., Senjuntichai, T., and Hayashikawa, T. (2013). “Distortion-Induced Fatigue
Cracking at Web-Gap of Steel Build-Up I-Beams.” The 6th ASEAN
Civil Engineering Conference, Bangkok, 21-22 November 2013, pp. CE35-1 to
CE35-11.
o
Loedpattanapan, N.
and Lenwari, A. (2015). “Heat Transfer Analysis of Concrete-Encased Steel
Columns Subjected to ISO 834 Standard Fire.” The 28th KKHTCNN
Symposium on Civil Engineering, November 16-18, 2015, Bangkok, Thailand.
o
Thongchom, C.,
Jitsumroeng, S., Lenwari, A., and Aboutaha, R.S. (2017). “Experimental Study on Reinforced Concrete
T-Beams at Elevated Temperatures.” The 15th East Asia-Pacific
Conference on Structural Engineering and Construction (EASEC-15), Xian,
China, 11-13 October 2017, pp. 1406-1413.
o
Do, B. and Lenwari, A. (2018). “Empirical
Stress Intensity Factor Equations for Cracked Steel Plates Repaired with Double-Sided
FRP Patches.” IOP Conference Series: Materials Science and Engineering,
Vol. 371, No. 1, 012056.
o
Vu, D. and Lenwari, A. (2019).
“Analysis of Fire-Damaged Concrete-Filled Steel Tube Columns Confined with FRP
Sheets.” IOP Conference Series: Materials Science and Engineering, Vol.
600, No. 1, 012016.
o
Lenwari, A., Soysak,
S., and Thongchom, C. (2021). Torsional Behavior of Reinforced
Concrete Members Wrapped with CFRP Sheets. International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil
Engineering, 1566-1576.
Books
o
Lenwari, A.
(2018). Strengthening
of Reinforced Concrete Structures with Fiber-Reinforced Polymers, 1st
edition, Chulalongkorn University Press, Bangkok. (in
Thai).
o
Thepchatri, T.
and Lenwari, A. (2022). Behavior and Design of Steel Structures. 7th
edition, Chulalongkorn University Press, Bangkok. (in
Thai).
Teaching
Courses
o
2101307 Reinforced Concrete Design
o 2101312
Structural Analysis II
o 2101406 Steel
and Timber Design
o 2101510
Computer Methods for Civil Engineering
o 2101801
Fracture Mechanics
o 2101806 Numerical
and Approximate Methods for Structural Engineering
Reviewers
o
Journal
of Composites for Construction, ASCE
o
Journal
of Engineering Mechanics, ASCE
o
Journal
of Bridge Engineering, ASCE
o
International
Journal of Fatigue
o
ACI
Structural and Materials Journals
o
Engineering
Structures
o
Construction
and Building Materials
o
Structural
Engineering and Mechanics
o
Structure
and Infrastructure Engineering
o
Mechanics
of Advanced Materials and Structures
o
Theoretical
and Applied Fracture Mechanics
o
European
Journal of Environmental and Civil Engineering
o
Engineering
Journal
o
ASEAN
Engineering Journal
o
Songklanakarin
Journal of Science and Technology
o
Suranaree
Journal of Science and Technology
o
Khon
Kaen University Engineering Journal
Last updated in November 2022