Laszlo P. Kollar
Professor
Budapest 1521 Muegyetem rkp.1-3. K.III.24 / 5.
Phone: (361)-463-2393
lkollar@eik.bme.hu
Curriculum Vitae
Education
Technical University of Budapest Dipl. of Civil Eng. 1982
Technical University of Budapest Dipl. of Engineering Mathematics 1986
Hungarian Academy of Sciences Candidate Degree 1986, (Ph.D.)
Hungarian Academy of Sciences Doctor of Sciences 1995, (D.Sc.)
Technical University of Budapest Dr. Habil, 1996
Experience
Technical University of Budapest Professor 1997-
Associate Professor (with tenure) 1993-1997
Senior Scientific Associate 1990-93
(equ. Assoc. Prof. without tenure)
Scientific Associate 1989-90
Assistant 1986-89
Scholar 1983-86
Bridge Design Bureau, Budapest Design Engineer 1982-83
Department of Civil Engineering, Visiting Scholar 1988
Catholic University of Leuven, Belgium
Department of Aeronautics and Visiting Scholar 1990-91
Astronautics, Stanford University Visiting Associate Professor 1992-93
Department of Civil and Eng,
Engineering, Stanford University Visiting Professor 1997-98
Honors and Awards
1990 Korányi Imre Fellowship for ten months stay in the USA. (One
awarded each year.)
1997 Széchenyi Professor Fellowship
2001 Correspondent member of the Hungarian Academy of Sciences
Professional Membership
American Concrete Institute
Structural Stability Research Council (member at large, task group: doubly
curved shells)
Editorial Board, Journal of Reinforced Plastics and Composites
Secretary of the task group of the Hungarian Academy of Sciences: Applied
Mechanics
European Association of Earthquake Engineering, Secretary of the Hungarian
Committee
Miscellaneous
Born: January 4. 1958, Budapest, Hungary
Married : Four Daughters
Address: Department of Strength of Materials and Structures, Technical
University of
Budapest, H-1521
Phone: (36-1) 463-2393, Fax: (36-1) 463-1773
Publications
Refereed Journals (in English
and German)
F1. Hegedûs, I. and
Kollár, L. P. : Buckling of sandwich columns with thin faces under
distributed normal
loads. Acta Technica Hungarica.
97. (1984), 111-122.
F2. Hegedûs, I. and
Kollár, L. P. : Buckling of sandwich columns with thick faces subjected
to axial loads of
arbitrary distribution.
Acta Technica Hungarica. 97. (1984), 123-132.
F3. Kollár, L. P.:
Die paradoxe Abnahme der Tragfähigkeit infolge Verstärkung des
Querschnittes.
Bautechnik. 62. (1985),
264-270.
F4. Kollár, L. P.
: Buckling analysis of coupled shearwalls by the multi-layer sandwich model.
Acta Technica
Hungarica. 99. (1986), 317-332.
F5. Hegedûs, I. and
Kollár, L. P. : Stabilitätsuntersuchung von Rahmen und Wandscheiben
mit der
Sandwichtheorie. Bautechnik.
64. (1987), 420-425.
F6. Hegedûs, I. and
Kollár, L. P. : Stability analysis of bars elastically restrained
from rotation along their
entire length. Acta Technica
Hungarica, Civil Engineering. 101. (1988), 57-65.
F7. Hegedûs, I. and
Kollár, L. P. : Generalized bar models and their physical interpretation.
Acta Technica
Hungarica, Civil Engineering.
101. (1988), 67-93.
F8. Hegedûs, I. and
Kollár, L. P. : Wrinkling of faces of sandwich bars and its interaction
with overall
instability. Acta Technica
Hungarica, Civil Engineering. 102./1, (1989), 49-63.
F9. Kollár, L. P.
: Postbuckling Behavior of Structures Having Infinitely Great Critical
Load. Mechanics of
Structures and Machines.
(formerly Journal of Structural Mechanics). 18./1, (1990), 17-31.
F10. Hegedûs, I. and
Kollár, L. P. : Buckling of mirror-symmetrical plane structures
under non-symmetrical
loads. Mechanics of Structures
and Machines. 18./4, (1990), 529-542.
F11. Kollár, L. P.
: Buckling of Generally Anisotropic (Aeolotropic) Shallow Shells. Acta
Technica Hungarica.
103. (1990), 171-189.
F12. Kollár, L. P.
: Buckling of generally anisotropic shallow sandwich shells. Journal of
Reinforced Plastics
and Composites. 9. (1990),
549-568.
F13. Csákány,
A., Hegedûs, I. and Kollár, L. P. : Cone Shell Calculations.
(Computerizable Method for
Calculation of Complex Shells
of Revolution.) Acta Technica Hungarica, Civil Engineering. 104. (1991/92),
3-38.
F14. Kollár, L. P.:
Calculation of Plane Frames braced by Shear Walls for Seismic Load. Acta
Technica
Hungarica, Civil Engineering.
104. (1991/92), 187-209.
F15. Kollár, L. P.
and Springer, G. S.: Stress Analysis of Anisotropic Laminated Cylinders
and Cylindrical
Segments. International
Journal of Solids and Structures. 29. (1992), 1499-1517.
F16. Kollár, L. P.,
Patterson, J. M., and Springer, G. S.: Composite Cylinders Subjected to
Hygrothermal and
Mechanical Loads. International
Journal of Solids and Structures. 29. (1992), 1519-1534.
F17. Kollár, L. P.
and Patterson, J. M. : Composite Cylinderical Segments Subjected to Hygrothermal
and
Mechanical Loads. International
Journal of Solids and Structures. 30. (1993), 2525-2545.
F18. Kollár, L. P.
: Three Dimensional Analysis of Composite Cylinders Under Axially Varying
Hygrothermal
and Mechanical Loads. International
Journal of Computers and Structures. 50/4. (1994), pp 525-540.
F19. Kollár, L. P.,
Springer, G. S., McColskey, D. and Spingarn, J. : Failures of axially loaded
composite
cylinders. Journal of Reinforced
Plastics and Composites. 12. (1993), 1070-1080.
F20. Kim, K. S., Kollár,
L. P. and Springer, G. S., : A Model of Embedded Fiber Optic Fabry-Perot
Temperature and Strain Sensors.
Journal of Composite Materials. 27. (1993), 1618-1662.
F21. Koconis, D. B., Kollár,
L. P. and Springer, G. S. : Shape Control of Composite Plates and Shells
with
Embedded Actuators. I.Voltages
Specified. Journal of Composite Materials. 28.-5 (1994), 415-458.
F22. Koconis, D. B., Kollár,
L. P. and Springer, G. S. : Shape Control of Composite Plates and Shells
with
Embedded Actuators. II.Desired
Shape Specified. Journal of Composite Materials. 28.-5 (1994) 459-482.
F23. Kollár, L. P.
: Approximate Analysis of Temperature Induced Stresses and Deformations
in Composite
Shells. Journal of Composite
Materials. 28.-5 (1994) 392-414.
F24. Kollár, L. P.:
Buckling of anisotropic cylinders. Journal of Reinforced Plastics and Composites.
13.-11
(1994), 954-975.
F25. Kollár, L. P.:
Buckling of isotropic and orthotropic cylinders under induced moments.
International
Journal of Solids and Structures.
34. (1997), 1915-1923.
F26. Kollár, L.P.
and R. Van Steenkiste : Calculation of the stresses and strains in embedded
fiber optic
sensors. Journal of Composite
Materials. 32. (1998) 1647-1679.
F27. R. Van Steenkiste and
László P. Kollár: Effect of the coating on the stresses
and strains in an
embedded fiber optic sensor.
Journal of Composite Materials. 32. (1998) 1680-1711.
F28. Köpecsiri, A.
and László P. Kollár: Approximate Analysis of Tall
Building Structures for Earthquake
using Timoshenko Beams.
Periodica Polytechnica. 42. (1998) 139-162.
F29. Jai, J., Springer,
G.S., Kollár, L.P. and H. Krawinkler : Reinforcing Masonry Walls
with Composite
Materials - Model. Journal
of Composite Materials. 34. 1548-1581, 2000
F30. Jai, J., Springer,
G.S., Kollár, L.P. and H. Krawinkler : Reinforcing Masonry Walls
with Composite
Materials - Test Results.
Journal of Composite Materials. 34. 1369-1381, 2000
F31. Köpecsiri, A.
and L. P. Kollár: Approximate Seismic Analysis of Building Structures
by the Continuum
Method. Acta Technica Hungarica,
Civil Engineering. (1999), (Accepted for publication.)
F32. Köpecsiri, A.
and L. P. Kollár: Simple formulas for the Analysis of Symmetric
(Plane) Bracing Systems
Subjected to Earthquakes.
Acta Technica Hungarica, Civil Engineering. (1999), (Accepted for publication.)
F33. Potzta, Gabriella and
L.P. Kollar: Approximate calculation of the first period of vibration of
building
structures with varying
stiffnesses. Acta Technica Hungarica, Civil Engineering. (1999), (Accepted
for
publication.)
F34. Nordt, A.A., Springer,
G.S. and L.P. Kollár: Computing the Mechanical Properties of Alpine
Skis. "Sports
Engineering" (1999), 2.
65-84
F35. Nordt, A.A., Springer,
G.S. and L.P. Kollár: Simulation of a Turn of Alpine Skis. "Sports
Engineering"
(1999), 2. 181-199
F36. Veres, I.A. and L.P.
Kollár: Approximate analysis of rectangular composite plates. .
"International J. of
Composite Materials" (2002),
36 (6), 673-684.
F37. Veres, I.A. and L.P.
Kollár: Buckling of rectangular orthotropic plates subjected to
biaxial loads.
"International J. of Composite
Materials" (2001), 35 (7), 625-635.
F38. Kiss, R, Jai, J. Kollár,
L.P., and H. Krawinkler : FRP strenthened Masonry Beams. Part I - Model.
Acceptted for publication,
"International J. of Composite Materials"
F39. Kiss, R, Jai, J. Kollár,
L.P., and H. Krawinkler : FRP strenthened Masonry Beams. Part II - Test
Results
and Model prediction. Accepted
for publication, "International J. of Composite Materials)
F40. Kollár, L.P:
Flexural-torsional buckling of open section composite columns with shear
deformation.
International Journal of
Solids and Structures. 38. (2001), 7525-7541.
F41. Kollár, L.P:
Flexural-torsional vibration of open section composite beams with shear
deformation.
International Journal of
Solids and Structures. 38. (2001), 7543-7558.
F42. Kollár, L.P:
Discussion on the paper of Qiao, P. Davalos, J.F. and Wang, J. : Local
Buckling of
Composite FRP Shapes by
Discrete Plate Analysis. "Journal of Structural Engineering", (Accepted
for
publication.)
F43. Kollár, L. P.
(2001). Buckling of Unidirectionally Loaded Composite Plates with One Free
and One
Rotationally Restrained
Unloaded Edge. "Journal of Structural Engineering", (Accepted for publication.)
F44. Sapkás, Á
and L.P. Kollár: Lateral-torsional buckling of composite beams with
shear deformation.
International Journal of
Solids and Structures, (Accepted for publication.)
F45. Kollár, L.P:
Local Buckling of Composite (FRP) Beams. "Journal of Engineering Mechanics",
(Submitted
for publication.)
F46. Pluzsik, A, and L.P.
Kollár: Analysis of Thin Walled Composite Beams with Arbitrary Layup,
Journal of
Reinforced Plastics and
Composites, (Submitted for publication.)
F47. Pluzsik, A, and L.P.
Kollár: Effect of Shear Deformation and Restrained Warping on the
Displacements
of Composite Beams, Journal
of Reinforced Plastics and Composites, (Submitted for publication.)
Refereed Journals and Publications
of the University (in Hungarian)
H1. Kollár, L. P.
: The Paradox of Decrease of Load-bearing Capacity (Investigation of Steel
and Reinforced
Concrete Cross-Sections.)
Mûszaki Tudomány. 62. (1982), 285-305.
H2. Kollár, L. P.
: Analysis of Statically Undetermined Structures with Variable Moment of
Inertia Using
Approximate Polynomials.
Mélyépítéstudományi Szemle. 33. (1983),
304-306.
H3. Hegedûs, I., Huszár,
Zs., and Kollár, L. P. : Analysis of Multibay and Multistory Frames
Braced by Shear
Walls. Építés-Építészettudomány.
62. (1985), 335-346.
H4. Hegedûs, I. and
Kollár, L. P. : Buckling of Sandwich Plates with Thick Faces. Mélyépítéstudományi
Szemle. 38. (1988), 173-176.
H5. Hegedûs, I. and
Kollár, L. P. : Application of Order Statistics in the Calculation
of Load-bearing Capacity
of Structures. Mélyépítéstudományi
Szemle. 40./1 (1990), 33-40.
H6. Kollár, L. P.
and Takács, Z.: On the Design Charts of Reinforced Concrete Columns.
Mélyépítéstudományi
Szemle. 41./6 (1991), 227-231.
H7. Pelle, J. and Kollár,
L. P.: Analysis of slabs on elastic foundation. Építés-
Építészzettudomány. (1995),
257-284.
H8. Kollár, L. P.
and Köpecsiri, A.: Time dependent behaviour of reinforced concrete
structures. (Part I.:
Dischinger's model), Építés-Építészettudomány.
(1996-97),91-116.
H9. Kollár, L. P.
and Köpecsiri, A.: Time dependent behaviour of reinforced concrete
structures. (Part II.:
EUROCODE's model), Építés-Építészettudomány.
(1996-97), 117-130.
H10. Kollár, L. P.
and Kiss, Rita: Fiber Reinforced Plastics in Civil Engineering. Part I.
Materials. Közúti és
Mélyépítéstudományi
Szemle. 48. (1998) 331-338.
H11. Horváth, A.
Sapkás, Á. and Kollár, L. P. : Design of a Composite
(Fiber Reinforced Plastic) Bridge. (In
Hungarian). A BME Építõmérnöki
Kar Vasbetonszerkezetek Tanszéke TUDOMÁNYOS KÖZLEMÉNYEI.
Budapest, 1997. p. 67-74.
H12. Kiss, R. and Kollár,
L. P. : Study of masonry beams subjected to bending strengthened by composite
layers. (In Hungarian).
A BME Építõmérnöki Kar Vasbetonszerkezetek
Tanszéke TUDOMÁNYOS
KÖZLEMÉNYEI.
Budapest, 1997. p.99-108.
H1. Pluzsik A., Kollár
L.P. és Varga László : Experimental investigation
of the anchorage length of
composites. A BME Építõmérnöki
Kar Vasbetonszerkezetek Tanszéke TUDOMÁNYOS KÖZLEMÉNYEI.
Budapest, 2000. p.223-230.
H2. Potzta G. és
Kollár L.P.: Approximate analysis of building subjected to earthquakes.
A BME
Építõmérnöki
Kar Vasbetonszerkezetek Tanszéke TUDOMÁNYOS KÖZLEMÉNYEI.
Budapest, 2000.
p.231-238.
H3. Sapkás Á.
és Kollár L.P.: Shear and torsion according to EUROCODE-2.
(comparison with the Hungarian
standard). A BME Építõmérnöki
Kar Vasbetonszerkezetek Tanszéke TUDOMÁNYOS KÖZLEMÉNYEI.
Budapest, 2000. p.263-274.
H4. Varga L. és Kollár
L.P.: Investigation of composite anchorage strips subjected to axial load.
A BME
Építõmérnöki
Kar Hidak és Szerkezetek Tanszéke TUDOMÁNYOS KÖZLEMÉNYEI.
Budapest, 2000.
p.191-206.
H5. Kollár L.P.:
Load bearing capacity of bridges subjected to overweight vehicles. Közlekedés
és
Mélyépítéstudományi
Szemle. 2001, 349-356
H6. Kollár L.P.:
Approximate analysis of bridges for determining the optimal route of overweight
wehicles.
Közlekedés és
Mélyépítéstudományi Szemle. 2001, 227-230
Symposium Proceedings
P1. Hegedûs, I. and
Kollár, L. P. : The peculiar stability behaviour of non-symmetrically
loaded symmetrical
structures. Symmetry of
Structures; An Interdisciplinary Symposium. Abstracts. Edited by Gy. Darvas
and D.
Nagy. pp. 221-223. Budapest,
August 13-19. 1989.
P2. Kollár, L. P.
: Buckling of generally anisotropic shallow shells with transverse shear
deformation.
International Colloquium;
Stability of Steel Structures. Hungary, (1990). Preliminary Report. Vol.
III.
175-182.
P3. Patterson, J. M., Springer,
G. S., and Kollár, L. P. : Experimental Observation of the Spring-back
Phenomenon. International
Conference of Composite Materials. (ICCM-VIII). Honolulu, Hawaii, July,
1991.
Editted by S. W. Tsai and
G. S. Springer. 10--D--1-8.
P4. Kollár, L. P.
: Stability Analysis of Composite Sandwich Shells. International Colloquiume.
Buckling of
Shell Structures on Land,
in the Sea, and in the Air . Lyon, France, September, 1991. Editted by
J. F. Jullien.
Elsevier, London, 1991,
92-101.
P5. Kollár, L. P.
: Temperature Induced Deformations in Composite Shells. International Conference
of
Composite Materials. (ICCM-IX).
Spain, Vol. IV. 721-728. July, 1993. Szerk.: A. Miravete, University of
Zaragoza, Woodhead Publishing
Limited.
P6. Springer, G. S. and
Kollár, L. P. : Damage Detection in Composites Using Embedded Sensors.
Applied
Mechanics in the Americas.
Vol. III. pp. 279-282. Szerk. L.A. Godoy, S. R. Idelsohn, P.A. A. Laura
and D. T.
Mook. AAM and AMCA, Santa
Fe, Argentina. 1995.
P7. Kollár, L. P.
: Buckling of Pressure Vessels under Manufacturing Stresses. International
Conference of
Composite Materials. (ICCM-X).
Canada, Vol.V. 77-84. Aug., 1995. Edited by Anaush Poursartip and Ken
Street.
P8. R. Van Steenkiste and
L. P. Kollár: Stresses and strains in fiber optic sensors embedded
in composite
materials. Advances in Analysis
and Design of Composites. 11-17. International Conference on
Computational Structures
Technology. Budapest, Hungary, 1996. 21st-23rd August. Szerk.: . B.H.V.
Topping.
P9. Kollár, L. P.,
Á. Sapkás, and A. Horváth : Design of Fiber Reinforced
Plastic Bridges in
Hungary.International Conference
of Composite Materials. (ICCM-XI). Australia, July., 1997.
P10. G. Farkas and L. P.
Kollár: Experience on the use of EUROCODE-2 in Hungary. International
ECSN
Symposium. European Concrete
Standards in Practice. Copenhagen, Denmark, May, 1997. 237-246. Edited
by Mette Geiker.
P11. R. Kiss, J. Jai, H.
Krawinkler and L.P. Kollár: Strengthening of Masonry Structures
with Fiber Reinforced
Composites. Fifth International
Conference on Composite Engineering. July 5-11. 1998. Ed. David Hui. p.
479-480.
P12. R. Kiss and L.P. Kollár:
Prediction of Delamination Growth in Masonry Walls Strengthened by
Composites. Conference on
Numerical Methods and Computational Mechanics, Aug. 1998. Book of
Abstracts. 50-52
P13. Á. Sapkás
and L.P. Kollár: Lateral Torsional Buckling of Beams Taking the
Shear Deformation into
Account. Conference on Numerical
Methods and Computational Mechanics, Aug. 1998. Book of Abstracts.
89-91.
P14. Jai, J., Kiss, R.,
Kollár, L. P., Krawinkler, H. and Springer, G. : The use of composites
retrofitting of
masonry walls. International
Conference of Composite Materials. (ICCM-XII). France, July., 1999. p.8
P15. Kollár, L. P.:
Composites in Civil Engineering (Why to use or not to use?). Tsai Symposium.
France,
July., 1999. p.6
P16. Kollár László:
Mérnökképzésünk válságjelenségei.
Mûegyetem 2000 Konferencia. 1999. január 20-21.
BME. p.20-23.
P17. Kollár László
P.: Hidak teherbírásának ellenõrzése
az útvonal-engedélyezéshez. Hídmérnökök
országos konferenciája,
2000, meghívott elõadó, 12 oldal
P18. Kollár L.P.:
Kompozit anyagok mechanikája (Kihívások és
meglepetések). Tudományos ülés a Magyar
Tudományos Akadémián.
Meghívott elõadó. Közgyûlési elõadások,
I. Kötet, 437-446, Szerk. Glatz F., MTA,
1999,
Books (in Hungarian)
Hegedûs, I. and Kollár,
L. P. : Application of the Sandwich Theory for the Stability Analysis of
Engineering
Structures. Chapter in:
Special Problems of Structural Stability. Akadémiai Könyvkiadó,
Budapest, (1990).
pp. 423-542.
Kollár, L. P. : Mechanics of Reinforced Concrete. (pp.194) Technical University of Budapest, 1995.
Kollár L. P. : Reinforced Concrete Structures. (pp.295) Technical University of Budapest, Budapest, 1997.
Books (in English)
Hegedûs, I. and Kollár,
L. P. : Application of the sandwich theory in the stability analysis of
engineering
structures. (Chapter of
the book ``Structural stability in engineering practice" Ed. Kollár
Lajos.) E & FN
Spon, (1999). (A K1. könyvfejezet
jelentõsen átdolgozott angol nyelvû kiadása.)
Lecture Note
George Springer and Laszlo
P. Kollar: Introduction to Composite Materials. AA256. January 1999. Stanford
University.
Theses
Stability Analysis of Frames
and Shear-walls by the Method of Difference Equations and by the Continuum
Method. Candidate Thesis.
(Ph.D.) Technical University of Budapest, Hungarian Academy of Sciences,
1986.
Composite shells. Doctor of Science Thesis. (D.Sc.) Hungarian Academy of Sciences, 1994.
Important Reports
George S. Springer and László
P. Kollár: Final Report to NIST: Three Dimensional Analysis of Composite
Cylinders Under Axially
Varying Hygrothermal and Mechanical Loads. Stanford University, Department
of
Aeronautics and Astronautics.
1992.
George S. Springer and László
P. Kollár: Final Report to SANDIA: Application of DYNA3D for Impact.
Stanford University, Department
of Aeronautics and Astronautics. March, 1993.
Pálfalvi D., Kollár,
L. and Farkas, G.: Serviceability Limit State of RC Structures According
to the Hungarian
Standard and the EUROCODE-2.
Report. PHARE Project No. HU-94.050101-L013/34 (In Hungarian.)
Kollár, L. and Sapkás.,
Á..: Design of RC Beams Subjected to Shear According to the Hungarian
Standard
and the EUROCODE-2. Report.
PHARE Project No. HU-94.050101-L013/34 (In Hungarian.)
Kollár, L.: Design
of RC Beams Subjected to Bending Moment and Axial Force According to the
Hungarian
Standard and the EUROCODE-2.
Report. PHARE Project No. HU-94.050101-L013/34 (In Hungarian.)