Przemysław Litewka

polski	English	español	deutsch

statistics of visitors (hmmm... only in Polish)

Since 31/05/2010:

Contents

· Personal

· Teaching

· Books

· Published papers

· Contributions to Congresses, Conferences and Symposia

· Links

Personal (top)

Address

Dr. hab. Przemysław Litewka

Institute of Structural Engineering

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 Poznań University 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-.........	assistant professor (adiunkt) at Poznan University of Technology, Institute of Structural Engineering, Department of Structural Mechanics;
1999-2001	research at Universität Hannover, Institut für Baumechanik und Numerische Mechanik, fellowship of Alexander von Humboldt Foundation
2008	Habilitation at Poznan University of Technology: „Beam-to-beam contact" (in Polish);

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 1^st and 2^nd World War, modelling;

soccer – Spain, badminton;

travelling, architecture, photography;

Languages

polski

English

deutsch

español

Teaching (top)

Civil Engineering

II level course

Structural Analysis

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.

(top)

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.

(top)

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. Betti’s theorem. Maxwell’s 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. Rayleigh’s 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

Published papers (top)

[1] P. Litewka, J. Przystański, A. Florkiewicz, Design of road embankments on weak foundations (in Polish: Projektowanie nasypów drogowych na gruntach słabonośnych), Drogownictwo, styczeń 1994, pp.15-18.

[2] J. Rakowski, P. Litewka, An efficient simple curved finite beam element, Zeitschrift für 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 für 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 für 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.

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, Poznań-Błażejewko, 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 osłabień, 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 płyt mostowych), XLV Konferencja Naukowa KILiW PAN i KN PZITB, Krynica, 13-18 września 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/Wisła, June 3-6, 2003, Short Papers, p.227-228; in: CD-ROM, eds.: T. Burczyński, P. Fedeliński, 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, Gdańsk-Jurata, 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, Łódź-Spała, 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 Bezier’s 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. Wilmański, pp. 439-452 The Beam-to-Beam Contact Smoothing with Bezier’s 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.

Links (top)

Universities, foundations

University of Nottingham

Universität Hannover

Poznan University of Technology

Foundation for the Polish Science

Alexander von Humboldt Foundation

Journals

Zeitschrift für Angewandte Mathematik und Mechanik

International Journal for Numerical Methods in Engineering

Computers & Structures

Solid Mechanics and its Applications