| Milan Jirásek and his research |
 |
My traditional one-week advanced
course on Modeling
of
Localized Inelastic Deformation
will take place on 22-26 September 2008 in Prague.
|
| Milan Jirásek and his research |
|
|
My traditional one-week advanced
course on Modeling
of
Localized Inelastic Deformation
will take place on 22-26 September 2008 in Prague.
|
Department
of Mechanics
Faculty of Civil Engineering
Czech Technical University in
Prague
Thakurova 7, 166 29 Prague, Czech
Republic
Phone: +420-224 354 481
Fax: +420-224 310 775
E-mail: Milan.Jirasek@fsv.cvut.cz
 |
I graduated from the Czech Technical University in Prague in 1985, and then I accepted a teaching position at the Department of Structural Mechanics of the Faculty of Civil Engineering. I was also taking math courses at Charles University. |
 |
In 1991 I started my graduate studies at Northwestern University under the supervision of Prof. Zdenek P. Bazant. My dissertation dealt with various aspects of quasibrittle fracture in concrete, rock, and ice. After graduation I went back to Prague for one year. |
 |
From 1994 till 2004 I
worked as a research engineer at the Swiss
Federal
Institute of Technology at Lausanne (EPFL) in the Laboratory of Structural and
Continuum Mechanics (LSC). I supervized two doctoral students,
Simon Rolshoven and Peter Grassl.
We used the object-oriented finite
element package OOFEM developed by
Dr. Borek Patzak,
who spent two years with me in Lausanne and is now my colleague in
Prague. |
 |
In July 2004 I moved once again back to Prague. Here I work as a professor in the Department of Mechanics, directed by Prof. Zdenek Bittnar. |
Teaching activities:
 |
I have developed a short advanced course that I occasionally teach at various European universities: |
 |
In 2001 I finished a textbook on Inelastic Analysis of Structures, co-authored by Prof. Zdenek P. Bazant and published by John Wiley and Sons, Chichester. |
 |
My research activities
focus on numerical models for fracture and damage of concrete,
including
|
 |
Our research group
participates in the activities of the Nanocem consortium. |
 |
I maintained the page of RILEM Technical Committee
QFS on Size Effect and Scaling of Quasibrittle Fracture. The work of this committee is now finished. |
 |
I am a member of the International Association for Fracture Mechanics of Concrete. |
 |
Here I keep a collection of links to research friends, colleagues, associations, etc. |
 |
Check the crack propagation videos illustrating my results. |
 |
My publications related to fracture and damage mechanics of concrete include |
M. Jirásek and P. Grassl:
Evaluation of
directional mesh bias in concrete fracture simulations using continuum
damage models
Engineering Fracture Mechanics,
75 (2008), 1921-1943.
P. Grassl and M. Jirásek:
Damage-plastic
model for concrete failure
International
Journal of Solids and Structures,
43 (2006), 7166-7196.
P. Grassl and M. Jirásek:
Plastic model
with non-local damage applied to concrete
International Journal for Numerical
and Analytical Methods in Geomechanics, 30 (2006), 71-90.
M.
Jirásek and S. Marfia:
Nonlocal
damage model based on displacement averaging
International Journal for Numerical Methods in Engineering, 63
(2005), 77-102.
M. Jirásek and P. Grassl:
Nonlocal
plastic models for cohesive-frictional materials
Modelling of Cohesive-Frictional
Materials, Proc. CDM-2004, ed. by P.A.Vermeer et al.,
A.A.Balkema Publishers, Leiden, The Netherlands, pp. 323-337.
P. Grassl
and M. Jirásek:
On mesh bias of local damage models for
concrete
Fracture Mechanics of Concrete Structures, Proc. FraMCoS-5,
Vail, Colorado, 12-16 April 2004, pp. 255-262.
M.
Jirásek, S. Rolshoven and P. Grassl:
Size effect on fracture energy induced by
nonlocality
International Journal for Numerical and Analytical Methods in
Geomechanics, 28 (2004), 653-670.
I. Carol,
M. Jirásek and Z.P. Bazant:
A framework for microplane models at
large strain, with application to hyperelasticity
International
Journal of Solids and Structures, 41 (2004), 511-557.
B.
Patzák and M. Jirásek:
Adaptive resolution of localized damage in
quasibrittle materials
Journal
of Engineering Mechanics ASCE, 130 (2004), 720-732.
M. Jirásek and S. Rolshoven:
Comparison of integral-type nonlocal
plasticity models for strain-softening materials
International Journal of Engineering Science, 41 (2003),
1553-1602.
B. Patzák and M. Jirásek:
Process zone resolution by extended finite
elements
Engineering Fracture Mechanics, 70 (2003), 957-977.
Z.P. Bazant and M. Jirásek:
Nonlocal integral formulations of plasticity
and damage: Survey of progress
Journal of
Engineering Mechanics ASCE, 128 (2002), 1119-1149.
M. Jirásek and T. Belytschko:
Computational resolution of strong
discontinuities
Proc. WCCM-V, Vienna, Austria,
7-12 July 2002.
M. Jirásek and B. Patzák:
Consistent tangent stiffness for nonlocal
damage models
Computers and Structures, 80 (2002), 1279-1293.
M. Jirásek and B. Patzák:
Models for quasibrittle failure: Theoretical
and computational aspects
Solids, Structures and Coupled Problems in Engineering, Proc.
ECCM-2001, Cracow, Poland, pp. 70--71 plus 20 pages on CD-ROM.
M. Jirásek:
Modelling of localized damage and fracture in
quasibrittle materials
in Continuous and Discontinuous Modelling of Cohesive Frictional
Materials, Lecture Notes in Physics 568, ed. P.A. Vermeer et al.,
Springer, Berlin, 2001, pp. 17-29.
I. Carol, M. Jirásek, and Z.P. Bazant:
A thermodynamically consistent approach to
microplane theory. Part I: Free energy and consistent
microplane stresses
International
Journal of Solids and Structures, 38 (2001), 2921-2931.
M. Jirásek and Th. Zimmermann:
Embedded crack model: I. Basic
formulation, II. Combination with smeared cracks
International Journal for Numerical Methods in Engineering, 50
(2001), 1269-1290 and 1291-1305.
M. Jirásek:
Conditions of uniqueness for finite
elements with embedded cracks
International Conference on Computational Plasticity, Barcelona, 11-14
September 2000.
M. Jirásek:
Comparative study on finite elements with
embedded cracks
Computer Methods
in Applied Mechanics and Engineering, 188 (2000), 307-330.
Z.P. Bazant, M.D. Adley, I. Carol, M. Jirásek, S.A. Akers, B.
Rohani, J.D. Cargile, and F. Caner:
Large-strain generalization of microplane model
for concrete and application
Journal of
Engineering Mechanics ASCE, 126 (2000), 971-980.
M. Jirásek:
Computational aspects of nonlocal models
Solids, Structures, and Coupled Problems in Engineering, ed. W.
Wunderlich, Proceedings of the European Conference on Computational
Mechanics, Munich, Germany, August 31 - September 3, 1999. (CD-ROM)
M. Jirásek:
Nonlocal damage models: Practical aspects and
open issues
Proceedings of the 13th ASCE Engineering Mechanics Division
Specialty Conference, Johns Hopkins University, Baltimore, June
13-16, 1999. (CD-ROM)
M. Jirásek:
Comments on microplane theory
Mechanics of Quasi-Brittle Materials and Structures, ed.
G. Pijaudier-Cabot, Z. Bittnar, and B. Gérard, Hermès
Science Publications, Paris, 1999, pp. 57-77.
M. Jirásek:
Finite elements with embedded cracks
LSC Internal Report 98/01, April 1998.
M. Jirásek:
Embedded crack models for concrete fracture
Proc. Computational Modelling of Concrete Structures (EURO-C),
Badgastein, Austria, March 31 - April 3, 1998,
ed. R. de Borst, N. Bicanic, H. Mang, and G. Meschke, Balkema,
Rotterdam, 291-300.
M. Jirásek:
Element-free Galerkin method applied
to strain-softening materials
Proc. Computational Modelling of Concrete Structures (EURO-C),
Badgastein, Austria, March 31 - April 3, 1998,
ed. R. de Borst, N. Bicanic, H. Mang, and G. Meschke, Balkema,
Rotterdam, 311-319.
M. Jirásek and T. Zimmermann:
Analysis of rotating crack model
Journal of
Engineering Mechanics ASCE, 124 (1998), 842-851.
M. Jirásek and T. Zimmermann:
Rotating crack model with transition to scalar
damage
Journal of
Engineering Mechanics ASCE, 124 (1998), 277-284.
M. Jirásek:
Nonlocal models for damage and fracture:
Comparison of approaches
International
Journal of Solids and Structures, 35 (1998), 4133-4145.
M. Jirásek and T. Zimmermann:
Rotating crack model with transition
to scalar damage:
I. Local formulation, II. Nonlocal formulation and adaptivity,
LSC Internal Report 97/01, January 1997.
M. Jirásek:
Analytical and numerical solutions for
frames with softening hinges
Journal of
Engineering Mechanics ASCE, 123 (1997), 8-14.
Z.P. Bazant and M. Jirásek:
Softening-induced dynamic localization
instability: Seismic damage in frames
Journal of
Engineering Mechanics ASCE, 122 (1996), 1149-1158.
M. Jirásek and Z.P. Bazant:
Macroscopic fracture characteristics of
random particle systems
International Journal of Fracture, 69 (1995), 201-228.
M. Jirásek and Z.P. Bazant:
Particle model for quasibrittle fracture and
application to sea ice
Journal of
Engineering Mechanics ASCE, 121 (1995), 1016-1025.
M. Jirásek and Z.P. Bazant:
Localization analysis of nonlocal model
based on crack interactions
Journal of
Engineering Mechanics ASCE, 120 (1994), 1521-1542.
Z.P. Bazant, M. Jirásek, Y. Xiang and P. Prat:
Microplane model with stress-strain
boundaries and its identification from tests with localized damage
Proc. Computational Modelling of Concrete Structures (EURO-C),
Innsbruck, Austria, March 22-25, 1994,
ed. H. Mang, N. Bicanic and R. de Borst, Pineridge Press, Swansea,
255-261.
Z.P. Bazant and M. Jirásek:
R-curve modeling of rate and size effects in
quasibrittle fracture
International Journal of Fracture, 62 (1993), 355-373.
M. Jirásek:
Modeling of Fracture and Damage in
Quasibrittle Materials
Ph.D. Thesis, Northwestern University, Evanston, Illinois,
1993.