Contents
·
Personal
·
Teaching
·
Books
·
Contributions to Congresses,
Conferences and Symposia
Personal (top)
Address
Prof. Dr. hab. inż. Przemysław
Litewka
Institute of Structural
Analysis
Poznan University of Technology
ul. Piotrowo 5
60-965 Poznań
Poland
tel.:
+48-61-6652468
fax:
+48-61-8766116
email: przemyslaw.litewka@gmail.com
Short CV
|
1968 |
born in Poznań, Poland; |
|
1975-1987 |
basic education at primary and comprehensive schools
in Poznań |
|
1987-1992 |
studies, civil engineering at Poznaiversity of Technology; |
|
1990-1991 |
studies, civil engineering at the University of Nottingham, UK, under
EC Tempus scheme; |
|
1992 |
M.Sc.
at Poznań University of Technology: Design of the road embankment on the low-strength
soil (in Polish) |
|
1992-1998 |
assistant (asystent)
at Poznan University of Technology, Institute of Structural Engineering,
Department of Structural Mechanics; |
|
1998 |
Ph.D.
at Poznan University of Technology: An effective finite element with large
curvature" (in Polish); |
|
1998-2013 |
assistant professor (adiunkt)
at Poznan University of Technology, Institute of Structural Engineering,
Department of Structural Mechanics; |
|
1999-2001 |
research at Universitaet Hannover, Institut fuer Baumechanik und Numerische Mechanik,
fellowship of Alexander von Humboldt Foundation |
|
2008 |
Habilitation at Poznan
University of Technology: Beam-to-beam contact" (in Polish); |
|
2012-2019 |
Head
of Department of Structural Mechanics, Institute of Structural Engineering,
Poznan University of Technology |
|
2013-2019 |
Associate
professor at Poznan University of Technology |
|
2019-2021 |
University
professor at Poznan University of Technology |
|
2020-2024 |
Vice-director
of Institute of Structural Analysis |
|
2021 |
Professor
of engineering-technical sciences |
|
2024-… |
Head
of Department of Structural Mechanics, Institute of Structural Analysis,
Poznan University of Technology |
Professional interests
structural mechanics;
numerical
methods in engineering:
· finite
element method,
· finite
strip method,
·
locking-free FEM formulations for beams and arches;
contact
mechanics:
· beam-to-beam
contact
· thermo-electro-mechanical
coupling
Leisure time interests
airplanes of 1st
and 2nd World War, modelling;
travelling,
architecture, photography;
Languages
polski
English
deutsch
español
Teaching
(top)
Civil Engineering
I level course
II level course
Sustained Building Engineering
I level course
The other subjects
Structural mechanics, example classes, M.Sc.
course
1. Influence lines in the statically
determinate structures: beams, trusses, frames. Graphical methods. Envelopes of
cross-sectional forces.
2. Application of the principle of
virtual work to the calculation of displacements in the statically determinate
systems (frames, trusses). Displacements evoked by the external forces, change
of temperature and support displacements. Influence lines of displacements.
3. Statically
indeterminate systems flexibility method, frames, trusses, beams. Internal
forces evoked by external loading, change of temperature and support
displacements. Calculation of displacements using the principle of virtual
work. Influence lines.
4. Flexibility method 3D frames.
5. Statically indeterminate systems
stiffness method, frames. Internal forces evoked by external loading, change of
temperature and support displacements.
6. Classical approach to the
structural dynamics. Bar systems with lumped masses, free vibrations and forced
vibrations evoked by the harmonic forces.
7. Buckling of bar systems classical
approach.
8. Stiffness method numerical
approach, introduction to the FEM. Internal forces evoked by external loading,
change of temperature and support displacements.
Structural mechanics 2, example classes, M.Sc.
course
1. Dynamics of frames numerical
approach. Free vibrations.
2. Stability of frames numerical
approach. Buckling analysis, statics with the influence of large normal forces.
3. The finite strip method.
deflections, bending and torsional moments in the two-span plates. Envelope of
the bending moments.
4. Internal forces in the shells of
axisymmetric tanks. Membrane state, boundary distortions, bending state.
Structural mechanics, lectures, engineering
course
1. Influence lines in the statically
determinate structures: beams, trusses. Envelopes of cross-sectional forces.
2. Principle of virtual work.
Displacements calculation in the statically determinate structures (frames
trusses), displacements evoked by the external loading.
3. Bettis theorem. Maxwells theorem. Statically indeterminate systems
flexibility method, frames, trusses, beams. Internal forces evoked by external
loading. Calculation of displacements using the principle of virtual work.
4. Influence lines in the continuous
beams
5. Rayleighs
theorem. Statically indeterminate systems stiffness method, frames. Internal
forces evoked by external loading.
6. Classical approach to the
structural dynamics. One-degree-of freedom system. Bar systems with lumped
masses, free vibrations and forced vibrations evoked by the harmonic forces.
Books
(top)
1. A. Litewka,
P. Litewka, Structural mechanics in historic
architecture, (in Polish), Wydawnictwo Politechniki Poznańskiej, 2006. cover
2. P. Litewka,
Beam-to-beam contact, (in Polish), Seria Rozprawy, nr 410, Wydawnictwo Politechniki Poznańskiej, 2007. cover
3. P. Litewka,
Finite Element Analysis of Beam-to-Beam Contact, Lecture Notes in
Applied and Computational Mechanics, Vol. 53, Springer, 2010. cover
4. D. P. Boso,
P. Litewka, B. A. Schrefler,
Thermo-Mechanical Coupling in Beam-to-Beam Contact, in: Recent
Developments and Innovative Application in Computational Mechanics, D.
Mueller-Hoeppe, S. Loehnert,
S. Reese, Eds., pp. 9-16, Springer, 2011.
5. P.
Litewka, J. Rakowski, Circular finite element,
Elliptic finite element, in: Exact curvilinear elements in the finite
element method and the boundary element method, J. Rakowski Ed., pp. 23-44,
99-122, (in Polish) Wydawnictwo Politechniki
Poznańskiej, 2011. cover
6. P.
Litewka, R. Sygulski,
Selected problems of advanced structural mechanics, (in Polish), Wydawnictwo Politechniki Poznańskiej, 2012. cover
7. Recent Advances in Computational Mechanics, T. odygowski, J. Rakowski, P. Litewka, Eds., CRC Press/Balkema, Taylor & Francis Group, London, 2014. cover
8. A. Litewka, P. Litewka, Mechanika budowli w architekturze historycznej, (in Polish) wyd. 2, Wydawnictwo Politechniki Poznańskiej, 2020. cover
Published
papers
(top)
[1] P. Litewka, J. Przystański, A. Florkiewicz, Design of road embankments on weak foundations
(in Polish: Projektowanie nasypów
drogowych na gruntach słabononych), Drogownictwo, styczeń, 1994,
pp.15-18.
[2] J. Rakowski, P. Litewka, An
efficient simple curved finite beam element, Zeitschrift fr Angewandte Mathematik und
Mechanik, vol.76 Supplement 1, pp.503-504, 1996.
[3] J. Rakowski, M. S. Kuczma, P.
Litewka, Elastoplastic Analysis of Plates on Unilateral Foundations, Zeitschrift fr Angewandte Mathematik und
Mechanik, vol.76 Supplement 2, pp.583-584, 1996.
[4] P. Litewka, J. Rakowski, An
Efficient Curved Element for Dynamic and Stability Problems, Zeitschrift fr Angewandte Mathematik und
Mechanik , vol.77 Supplement 1, pp.191-192, 1997.
[5] P. Litewka, J. Rakowski, An efficient curved beam finite
element, International
Journal for Numerical Methods in Engineering, vol. 40, pp.2629-2652,
1997.
[6] P. Litewka, J. Rakowski, The exact thick arch finite element, Computers &
Structures, vol.68, pp.369-379, 1998.
[7] P. Litewka, R. Sygulski, Statical and dynamical analysis of bridge slabs by the
Finite Strip Method, Archives of Civil Engineering, vol.XLV,2,
pp.259-273, 1999.
[8] P. Litewka, J. Rakowski, An efficient 3D curved beam finite
element, CAMES, vol.7,
pp.707-716, 2000.
[9] P. Litewka, J. Rakowski, Free vibrations of shear-flexible and
compressible arches by FEM, International
Journal for Numerical Methods in Engineering, vol.52(3), pp.273-286,
2001.
[10] P. Litewka,
P. Wriggers, Contact between 3D beams with
rectangular cross-sections, International
Journal for Numerical Methods in Engineering, vol.53(9), pp.2019-2041,
2002.
[11] P. Litewka,
P. Wriggers, Frictional contact between 3D beams, Computational
Mechanics, vol.28(1), pp.26-39, 2002.
[12] M. S. Kuczma, P. Litewka, J. Rakowski,
J. R. Whiteman, A variational inequality approach to an elastoplastic plate
foundation system, Foundations of Civil and
Environmental Engineering, vol.4,
pp.31-48, 2004.
[13] P. Litewka,
The penalty and Lagrange multiplier methods in the frictional 3D beam-to-beam
contact problem, Civil and Environmental Engineering Reports, vol.1,
pp.189-207, 2005.
[14] D. P. Boso, P. Litewka, B. A. Schrefler, P. Wriggers, A 3D beam-to-beam
contact finite element for coupled electric-mechanical fields International Journal for Numerical
Methods in Engineering, vol. 64(13), pp.1800-1815, 2005.
[15] P. Litewka,
Hermite polynomial smoothing in beam-to-beam frictional contact problem, Computational
Mechanics, vol. 40(6), pp. 815-826, 2007.
[16] P. Litewka,
The elliptic curved beam finite element for static and dynamic analysis of
arches, Foundations of
Civil and Environmental Engineering, vol.14, pp.73-109, 2011.
[17] P. Litewka,
Enhanced multiple-point beam-to-beam frictionless contact finite element, Computational
Mechanics, vol. 52(6), pp. 1365-1380, 2013.
[18] P. Litewka,
Frictional beam-to-beam multiple-point contact finite element, Computational
Mechanics, vol. 56(2), pp. 243-264, 2015.
[19] P. Litewka,
M. Bąk, Stability of steel frames with bolted joints
(in Polish: Stateczno栲am stalowych z w꺳ami podatnymi), Przegld Budowlany, 10/2015, ss. 42-47, 2015.
[20] O. Kawa, P. Litewka, Contact with friction between 3D beams with
deformable circular cross-sections, Engineering Transactions,
vol. 63(4), pp. 439-462, 2015.
[21] P. Litewka,
R. Lewandowski, Nonlinear harmonically excited vibrations of plates with Zener
material, Nonlinear Dynamics, vol. 89(1), pp. 691-712, 2017.
[22] P. Litewka,
R. Lewandowski, Steady-state non-linear vibrations of plates using Zener
material with fractional derivative, Computational Mechanics, vol. 60(2), pp. 333-354, 2017.
[23] O. Kawa, P. Litewka, R. Studziński, Contact
between 3D beams with deformable circular cross-sections numerical
verification, Engineering
Transactions, vol. 66(3), pp. 281-299, 2018.
[24] P. Litewka,
R. Lewandowski, Dynamic characteristics of viscoelastic Mindlin
plates with influence of temperature, Computers
and Structures, vol. 229, 2020, doi 10.1016/j/compstruc.2019.106181.
[25] P. Litewka,
R. Lewandowski, Temperature influence on non-linear harmonic vibrations of
plates made of viscoelastic materials, Engineering Transactions,
vol. 68(2), pp. 159-176, 2020.
[26] R. Lewandowski, P. Wielentejczyk, P. Litewka,
Dynamic characteristics of multi-layered viscoelastic beams using the refined
zig-zag theory, Composite
Structures, vol. 259, 2021, doi.org/10.1016/j.compstruct.2020.113212.
[27] R. Lewandowski, P. Litewka, P. Wielentejczyk, Free
vibrations of laminate plates with viscoelastic layers using the refined
zig-zag theory. Part 1 Theoretical background, Composite
Structures, vol. 278, 2021, doi.org/10.1016/j.compstruct.2020.114547.
[28] P. Litewka,
R. Lewandowski, P. Wielentejczyk, Free vibrations of
laminate plates with viscoelastic layers using the refined zig-zag theory. Part
2 Numerical analysis, Composite
Structures, vol.278 doi.org/10.1016/j.compstruct.2021.114550.
[29] R. Lewandowski, P. Litewka, Nonlinear harmonic vibrations of laminate plates
with VE layers using refined zig-zag theory. Part 2 – Numerical solution, Composite
Structures, vol. 319, 2023 doi.org/10.1016/j.compstruct.2023.117062.
[30] R. Lewandowski, P. Litewka, Nonlinear harmonic vibrations of laminate plates
with VE layers using refined zig-zag theory. Part 1 – Theoretical background, Composite
Structures, vol. 319, 2023 doi.org/10.1016/j.compstruct.2023.117200.
[31] R. Lewandowski, P. Litewka, M. Łasecka-Plura, Z.
Pawlak, Dynamics of Structures, Frames and Plates with Viscoelastic Dampers or
Layers: A Literature Review Buildings , vol. 13, 2223, 2023 doi.org/10.3390/buildings13092223.
[32]
P. Reder, P. Litewka, Nieliniowa analiza ram stalowych z węzłami podatnymi, Nowoczesne Hale, 1/2024.
[33] P. Litewka,
R. Lewandowski, Temperature influence on the natural and forced vibraions of laminate plates with fractional Zener
viscoelastic layers, Thin-Walled
Structures, 2024, doi.org/10.1016/j.tws.2024.111943.
Contributions
to Congresses, Conferences and Symposia (top)
[1] P. Litewka, J. Rakowski, Dynamics of Mindlin
plates by gridwork analogy method, Computer Methods in Mechanics, XI Polish
Conference, Kielce-Cedzyna, 11-14 May 1993,
vol.2, pp.519-525.
[2] P. Litewka, Free vibrations of plates by gridwork analogy
method - the numerical analysis, Vibrations in Physical Systems, XVIth Symposium, Poznaaejewko, 26-28 May 1994, pp.221-222.
[3] P. Litewka, J. Rakowski, An efficient simple curved finite
beam element, Computer Methods in Mechanics, XII Polish Conference,
Warsaw-Zegrze, 9-13 May 1995, pp.200-201.
[4] J. Rakowski,
P. Litewka, An efficient simple curved finite beam
element, The Third International Congress on Industrial and Applied
Mathematics, Hamburg, 3-7 July 1995, p.411.
[5] J. Rakowski,
M. S. Kuczma, P. Litewka,
Elastoplastic Analysis of Plates on Unilateral Foundations, The Third
International Congress on Industrial and Applied Mathematics, Hamburg, 3-7
July 1995, p.339.
[6] A. Florkiewicz, P. Litewka,
Stability problems of slopes with internal damage loaded by foundations (in
Polish: Problemy stateczności
zboczy z wewnętrznymi systemami osabień obciążonych fundamentami), VIIIth Glacitectonics
Symposium, Zielona Góra, 1995.
[7] P. Litewka, J. Rakowski, Free Vibrations of Thick Arches by
Finite Element Method, Vibrations in Physical Systems, XVIIth
Symposium, Poznań Błażejewko,
22-25 May 1996, p.192.
[8] P. Litewka, J. Rakowski, An Efficient Curved Element for
Dynamic and Stability Problems, Annual Scientific Conference GAMM,
Prague 27-31 May 1996, p. 120.
[9] P. Litewka, J. Rakowski, The Exact Thick Arch Element with
Large Curvature, XXXIst Polish Solid
Mechanics Conference, 9-14 September 1996, Mierki
k. Olsztynka, s.162.
[10] P. Litewka,
J. Rakowski, Vibrations of Shear-flexible and Compressible Arches by FEM, Annual
Scientific Conference GAMM, Regensburg, 24-27 March, 1997.
[11] P. Litewka,
J. Rakowski, A Curved Beam Finite Element for Dynamic and Stability Problems, XIII
Polish Conference on Computer Methods in Mechanics, Poznań,
5-8 May, 1997, vol.2, pp.765-772.
[12] P. Litewka,
R. Sygulski, Statical
Analysis of Bridge Slabs by the Finite Strip Method, XIII Polish Conference
on Computer Methods in Mechanics, Poznań, 5-8
May, 1997, vol.2, pp.773-780.
[13] P. Litewka,
J. Rakowski, Vibrations of arches with large curvature by FEM, Vibrations in
Physical Systems, XVIIIth Symposium, Poznań Błażejewko, 27-30 May
1998, s.189-190.
[14] P. Litewka,
R. Sygulski, Free vibrations of bridge slabs by the
Finite Strip Method, Vibrations in Physical Systems, XVIIith
Symposium, Poznań Błażejewko,
27-30 May 1998, p.191-192.
[15] P. Litewka,
R. Sygulski, Analysis of bridge slabs by the Finite
Strip Method, Shell Structures Theory and Applications, The 6th Conference,
Gdansk-Jurata, October 12-14 1998, pp.187-188.
[16] P. Litewka,
J. Rakowski, An efficient 3D curved beam finite element, XIV Polish
Conference on Computer Methods in Mechanics, Rzeszów,
26-28 May, 1999,p.225-226.
[17] P. Litewka,
R. Sygulski, Bridge slabs analysis under moving loads
by FSM, XIV Polish Conference on Computer Methods in Mechanics, Rzeszów, 26-28 May, 1999, p.227-228.
[18] P. Litewka,
J. Rakowski, An efficient arch finite element for dynamic and stability
problems, 1st International Conference on Advances in Structural Engineering
and Mechanics, Seoul, Korea, 23-25 August 1999, vol.1, pp.475-480.
[19] P. Litewka, R. Sygulski, Numerical and experimental analysis of bridge slab statics (in Polish: Analiza numeryczna i eksperymentalna statyki pyt mostowych), XLV Konferencja Naukowa KILiW PAN i KN PZITB, Krynica, 13-18 wrzenia 1999, vol.1,pp.111-118.
[20] P. Litewka,
R. Sygulski, Vibrations of Bridge Slabs under
Inertial Moving Loads, Vibrations in Physical Systems, XIXth
Symposium, Poznań Błażejewko,
24-27 May, 2000.
[21] J. Rakowski, P. Litewka, Beam analogy in the Static Analysis of Shells of
Revolution, Computational
Methods for Shell and Spatial Structures IASS-IACM 2000, Chania, Crete,
4-7 June 2000, Abstracts, pp.10-11, CD-ROM.
[22] P. Litewka,
P. Wriggers, Contact between 3D beams with
rectangular cross-sections, 3rd
Contact Mechanics International Symposium CMIS 2001, Praia da Consolacao, Peniche, Portugal,
June 17-21, 2001, in: Contact Mechanics, eds.: J.A.C. Martins, M.D.P. Monteiro
Marques, pp.355-362, Solid Mechanics
and its Applications, vol.103, Kluwer academic publishers, Dordrecht.
[23] P. Litewka,
P. Wriggers, J. Rakowski, 3D beam finite element for
large displacement analysis, 2nd European Conference on
Computational Mechanics ECCM-2001, Cracow, Poland, June 26-29, 2001,
CD-ROM.
[24] P. Litewka,
P. Wriggers, Beam-to-beam contact finite element, WCCM V - Fifth World Congress on
Computational Mechanics, Vienna, Austria, July 7-12, 2002, Book of
Abstracts, vol.II, p.120; in: eds.: H.A. Mang, F.J. Rammerstorfer, J. Eberhardsteiner,
paper ID-80222, website: http://www.wccm.tuwien.ac.at/index.html,.
[25] P. Litewka,
P. Wriggers, Frictional beam-to-beam contact by the
Lagrange multipliers method, Complas VII - 7th International Conference on Computational
Plasticity, Barcelona, Spain, April 7-10, 2003, Book of Abstracts,
p.204; in: CD-ROM, eds.: E. Oñate, D.R.J. Owen.
[26] P. Litewka,
Frictional beam-to-beam contact by penalty and Lagrange multiplier methods -
numerical comparison, CMM-2003 15th International
Conference on Computer Methods in Mechanics,
Gliwice/Wisa, June 3-6, 2003, Short Papers,
p.227-228; in: CD-ROM, eds.: T. Burczy, P. Fedeli, E. Majchrzak.
[27] M. Guminiak,
P. Litewka, R. Sygulski,
Static analysis of plates on the unilateral foundation by BEM, The 8th International Conference MODERN
BUILDING MATERIALS, STRUCTURES AND TECHNIQUES,
Vilnius, May 19-21, 2004, Short Papers, p.349-350; CD-ROM.
[28] D. Boso,
P. Litewka, B. Schrefler,
P. Wriggers, Electric-mechanical beam-to-beam
contact, 21st International Congress of
Theoretical and Applied Mechanics, Warsaw, August
15-21, 2004, Abstracts Book, p.218; CD-ROM; Mechanics of the 21st Century, Ed.
W. Gutkowski, T. Kowalewski,
Springer 2005, CD-ROM paper10415.
[29] D. Boso,
P. Litewka, B. Schrefler,
P. Wriggers, Electro-mechanical coupling in
beam-to-beam contact, CMM-2005 16st International Conference on
Computer Methods in Mechanics, Częstochowa, June 20-24, 2005, Short Papers, p.127-128.
[30] D. Boso,
P. Litewka, B. Schrefler,
P. Wriggers, 3D beam-to-beam contact within coupled
electro-mechanical fields: a finite element model, 4th Contact Mechanics International
Symposium CMIS 2005, Hannover, July 4-6, 2005; in:
Analysis and Simulation of Contact Problems, Eds. Peter Wriggers,
Udo Nackenhorst, Lecture Notes in Applied and
Computational Mechanics, vol. 27, pp. 103-110, Springer Verlag, Berlin
Heidelberg, 2006.
[31] B. Litewka,
P. Litewka, R. Sygulski,
Analysis of floating plates under dynamic loads, Shell Structures Theory and
Applications, The 8th Conference, GdaJurata, 12-14 October 2005, in: Shell Structures: Theory
and Applications, Eds. W. Pietraszkiewicz, C. Szymczak, pp.377-381, Taylor & Francis Group, London,
2005.
[32] D. Boso,
P. Litewka, B. Schrefler,
P. Wriggers, Thermo-electro-mechanical coupling in
beam-to-beam contact, III
European Conference on Computational Mechanics, Lisbon, June 5-9, 2006,
Book of Abstracts, p.306.
[33] P. Litewka,
Smooth frictional contact between beams in 3D, IUTAM Symposium on
Computational Contact Mechanics, Hannover, 5-8 November 2006; in: IUTAM
Symposium on Computational Methods in Contact Mechanics, Eds. P. Wriggers, U. Nackenhorst, pp.
157-176, IUTAM Bookseries Vol.3, Springer, Dordrecht,
2007.
[34] P. Litewka,
A smoothing technique frictional contact between beams in 3D, CMM-2007 17th International Conference on
Computer Methods in Mechanics, Spaa,
June 19-22, 2007, Short Papers, p.253-254.
[35] P. Litewka,
A 3D curve smoothing method preserving nodes for the beam-to-beam contact, 8th World
Congress on Computational Mechanics / 5th European congress on Computational
methods in Applied Sciences and Engineering Methods in Mechanics,
Venice, Italy, 30 June 4 July 2008, CD-ROM, paper a2916.
[36] P. Litewka,
Two smoothing methods in frictional beam-to-beam contact a numerical
comparison, XXII International
Congress of Theoretical and Applied Mechanics, Adelaide, Australia,
August 24-29, 2008, Abstracts Book, p.212; CD-ROM paper10700. .
[37] P. Litewka,
The node-preserving beam-to-beam contact smoothing using Beziers curves, CMM-2009 18th International Conference on
Computer Methods in Mechanics, Zielona Góra,
May 18-21, 2009, Short Papers, p.65-66; in: Computer Methods in Mechanics.
Lectures of the CMM2009, Eds. M. Kuczma, K. Wilma,
pp. 439-452 The Beam-to-Beam Contact Smoothing with Beziers Curves, Springer,
Advanced Structured Materials 1, 2010.
[38] P. Litewka,
Numerical comparison of various smoothing techniques in the beam-to-beam
contact, 1st International
Conference on Computational Contact Mechanics ICCCM09, Lecce, Italy,
16-18 September 2009, Abstracts, p.85-86.
[39] P. Litewka,
S. Sikora, Elliptic curved beam finite element, IV European Conference on Computational
Mechanics ECCM 2010, Palais des Congres,
Paris, France, May 16-21, 2010, CD-ROM paper 833.
[40] P. Litewka,
Multiple-point beam-to-beam contact finite element, CMM-2011 19th International Conference on
Computer Methods in Mechanics, Warszawa, May 9-12, 2011, Short Papers,
p.317-318.
[41] P. Litewka,
Enhanced beam-to-beam contact element for almost parallel beams, 2nd International
Conference on Computational Contact Mechanics ICCCM 2011, Hannover,
Germany, 15-17 June 2011, Abstracts, p.135-136.
[42] P. Litewka,
Beam-to-beam contact, Bilateral Workshop on Topics in Civil and Mechanical
Engineering on 30th Anniversary of Scientific Cooperation between Poznan
University of Technology and Leibniz Universitaet
Hannover, Hannover, Germany, 14-15 March 2013.
[43] O. Kawa, P. Litewka, Contact between 3-D beams with deformable
cross-sections, CMM-2013 20th
International Conference on Computer Methods in Mechanics, Poznań, August 27-31, 2013, Short Papers, p. MS14-11-12;
in: Recent Advances in Computational Mechanics, T. Łodygowski,
J. Rakowski, P. Litewka, Eds., p. 183-190, CRC Press/Balkema, Taylor & Francis Group, London, 2014.
[44] P. Litewka,
Numerical analysis of frictionless contact between almost conforming beams, CMM-2013 20th International Conference
on Computer Methods in Mechanics, Poznań,
August 27-31, 2013, Short Papers, p. MS14-13-14; in: Recent Advances in
Computational Mechanics, T. Łodygowski, J.
Rakowski, P. Litewka, Eds., p. 191-199, CRC Press/Balkema, Taylor & Francis Group, London, 2014.
[45] O. Kawa, P. Litewka, Contact with friction between 3-D beams with
deformable circular cross section, 11th World Congress on Computational
Mechanics WCCM XI, Barcelona, July 27-31, 2014.
[46] P. Litewka,
Frictional multiple-point beam-to-beam contact finite element, 11th World Congress on Computational
Mechanics WCCM XI, Barcelona, July 27-31, 2014.
[47] O. Kawa, P. Litewka, Numerical analysis of contact between 3-D beams
with deformable cross-sections, 3rd
Polish Congress of Mechanics - 21th International Conference on Computer Methods
in Mechanics, Gda/span>,
September 8-11, 2015, Short Papers vol. 1, p. 119-120; in: Advances in
Mechanics, M. Kleiber, T. Burczyński,
K. Wilde, J. Gi, K. Winkelmann, . Smakosz,
Eds., p. 287-291, CRC Press/Balkema, Taylor &
Francis Group, London, 2016.
[48] P. Litewka,
Electro-mechanical multiple-point beam-to-beam contact, 3rd Polish Congress of Mechanics -
21th International Conference on Computer Methods in Mechanics, Gdansk,
September 8-11, 2015, Short Papers vol. 1, p. 121-122; in: Advances in
Mechanics, M. Kleiber, T. Burczy,
K. Wilde, J. Gi, K. Winkelmann, . Smakosz,
Eds., p. 349-353, CRC Press/Balkema, Taylor &
Francis Group, London, 2016.
[49] O. Kawa, P. Litewka, Numerical analysis of frictionless contact between
3D beams with circular cross-section, VII
European Congress on Computational Methods in Applied Sciences and Engineering
- ECCOMAS Congress 2016, Crete, June 5-10, 2016,
https://www.eccomas2016.org/proceedings/pdf/6888.pdf.
[50] R. Lewandowski, P. Litewka, Harmonically forced non-linear vibrations of
plates made from Zener material, VII
European Congress on Computational Methods in Applied Sciences and Engineering
- ECCOMAS Congress 2016, Crete, June 5-10, 2016,
https://www.eccomas2016.org/proceedings/pdf/5811.pdf.
[51] P. Litewka, R.
Lewandowski, Influence of elastic supports on non-linear steady-state
vibrations of Zener material, 22nd
International Conference on Computer Methods in Mechanics, Lublin,
September 13-16, 2017, Short Papers p. MS09-17-18; in: COMPUTER METHODS IN
MECHANICS (CMM2017): Proceedings of the 22nd International Conference on
Computer Methods in Mechanics, Eds, AIP
Conference Proceedings 1922, 100002 (2018); https://doi.org/10.1063/1.5019087.
[52] O. Kawa, P. Litewka,
R. Studziński, Numerical analysis of cross-section
deformation in beam-to-beam contact, Emerging Trends in Applied
Mathematics and Mechanics ETAMM2018, June 18-22, 2018, Kraków, Book of
Abstracts, p.106.
[53] P. Litewka, R.
Lewandowski, Comparison of viscoelastic material models in non-linear
vibrations of plates, 9th International
Congress of Croatian Society of Mechanics, September 18-22, 2018,
Split, Croatia, Book of Abstracts, P. Marovic, L. Krstulovic-Opara, M. Galic, Eds.,
p.66.
[54] P. Litewka, R.
Lewandowski, Temperature influence on non-linear harmonic vibrations of plates
made of viscoelastic materials, 4th
Polish Congress of Mechanics - 23rd International Conference on Computer
Methods in Mechanics, Krak September 8-12, 2019, Paper 465.
[55] P. Litewka, R.
Lewandowski, Temperature influence on free vibrations of viscoelastic Mindlin plates, Eurodyn 2020, XI International Conference on Structural
Dynamics, Athens, Greece, November 23-26, 2020, Paper 18623.
[56] P. Litewka, R.
Lewandowski, Refined zig-zag theory for dynamic characteristics of
laminate plates with viscoelastic layers, 24th International Conference
on Computer Methods in Mechanics - 42nd Solid Mechanics Conference, Świnoujście, September 5-8, 2022, S-09 Keynote Lecture.
[57] P. Litewka, R.
Lewandowski, Non-linear vibrations of viscoelastic laminate plates
with the influence of ambient temperature, 43rd Solid Mechanics Conference, Wrocław, September 15-18, 2024.
[58] P. Litewka, R.
Lewandowski, Modeling of
temperature influence on harmonic vibrations of viscoelastic layered plates, 31st Conference
Vibrations in Physical and Technical Systems, Poznań, October 16-18, 2024, Book of Abstracts, p.63-64.
[59] P. Litewka, R.
Lewandowski, Modeling of ambient
temperature influence on dynamic characteristics of viscoelastic layered plates, GAMM 95th Annual Meeting, Poznań, April 7-11, 2025, Book of Abstracts, p.368-369.