Przemysław Litewka

 

Spis treści

·       Dane osobowe

·       Informacje dla studentów

terminy konsultacji

zajęcia

przykładowe ćwiczenia projektowe

formularze ćwiczeń projektowych

przykładowe zadania

programy komputerowe i materiały pomocnicze

ogłoszenia

·       Podręczniki

·       Opublikowane artykuły

·       Referaty na kongresach, konferencjach i sympozjach

Dane osobowe   (początek strony)

Adres

prof. dr hab. inż. Przemysław Litewka

Instytut Analizy Konstrukcji

Politechnika Poznańska

ul. Piotrowo 5

60-965 Poznań

Poland

tel.: +48-61-6652468

fax: +48-61-8766116

email: przemyslaw.litewka@gmail.com

 

Krótki życiorys

1968	urodzony w Poznaniu;
1975-1987	nauka w Szkole Podstawowej Nr 20 i III Liceum Ogólnokształcącym w Poznaniu;
1987-1992	studia wyższe, budownictwo na Politechnice Poznańskiej;
1990-1991	studia wyższe, budownictwo na University of Nottingham, Wielka Brytania w programie Tempus;
1992	stopień mgr inż. na Politechnice Poznańskiej: Projekt nasypu drogowego na podejciu drogi do mostu na rzece Obrze w Międzyrzeczu
1992-1998	asystent w Zakładzie Mechaniki Budowli Instytutu Konstrukcji Budowlanych Politechniki Poznańskiej;
1998	stopień dr inż. na Politechnice Poznańskiej: Efektywny element skończny o dużej krzywiźnie;
1998-2013	adiunkt w Zakadzie Mechaniki Budowli Instytutu Konstrukcji Budowlanych Politechniki Poznańskiej;
1999-2001	staż naukowy na Universitaet Hannover, Institut fuer Baumechanik und Numerische Mechanik, stypendium Alexander von Humboldt Foundation
2008	stopień dr hab. na Politechnice Poznańskiej: Kontakt między belkami”
2012-2019	Kierownik Zakładu Mechaniki Budowli Instytutu Konstrukcji Budowlanych Politechniki Poznańskiej
2013-2019	stanowisko profesora nadzwyczajnego na Politechnice Poznańskiej
2019-2021	stanowisko profesora uczelni na Politechnice Poznańskiej
2020-2024	Z-ca Dyrektora Instytutu Analizy Konstrukcji
2021	tytuł profesora nauk inżynieryjno-technicznych
2024-…		Kierownik Zakładu Mechaniki Budowli Instytutu Analizy Konstrukcji Politechniki Poznańskiej

 

Zainteresowania zawodowe

mechanika budowli;

metody numeryczne w mechanice:

·       metoda elementów skończnych (MES),

·       metoda pasm skończnych,

·       problem shear-lockingu w MES-ie;

mechanika kontaktu:

·       kontakt belka-belka

·       sprzężone pola mechaniczne, elektryczne i termiczne

dynamika konstrukcji z elementami lepkosprężystymi

Inne zainteresowania

lotnictwo w I i II wojnie światowej, modelarstwo;

podróże, architektura, fotografia;

Języki obce

angielski

niemiecki

hiszpański

włoski

Informacje dla studentów          (początek strony)

Terminy konsultacji

Zajęcia dydaktyczne

Przykładowe ćwiczenia projektowe

Formularze ćwiczeń projektowych

Przykładowe zadania z kolokwiów

Przykładowe zadania z ćwiczeń

Programy komputerowe, materiały pomocnicze

Ogłoszenia

Mechanika budowli - B

Zaawansowana Mechanika Budowli

Advanced Structural Mechanics

Structural Mechanics - SBE

Structural Mechanics I

Książki  (początek strony)

1. A. Litewka, P. Litewka, Mechanika budowli w architekturze historycznej, Wydawnictwo Politechniki Poznańskiej, 2006. okładka

2. P. Litewka, Kontakt między belkami, Seria Rozprawy, nr 410, Wydawnictwo Politechniki Poznańskiej, 2007. okładka

3. P. Litewka, Finite Element Analysis of Beam-to-Beam Contact, Lecture Notes in Applied and Computational Mechanics, Vol. 53, Springer, 2010. okładka

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, Koowy element skończony, Eliptyczny element skończony, in: Ścisłe elementy krzywoliniowe w metodach elementów skończonych i elementów brzegowych, J. Rakowski Ed., pp. 23-44, 99-122, Wydawnictwo Politechniki Poznańskiej, 2011. okładka

6. P. Litewka, R. Sygulski, Wybrane zagadnienia zaawansowanej mechaniki budowli, Wydawnictwo Politechniki Poznańskiej, 2012. okładka

7. Recent Advances in Computational Mechanics, T. odygowski, J. Rakowski, P. Litewka, Eds., CRC Press/Balkema, Taylor & Francis Group, London, 2014. okładka

8. A. Litewka, P. Litewka, Mechanika budowli w architekturze historycznej, wyd. 2, Wydawnictwo Politechniki Poznańskiej, 2020. okładka

Opublikowane artykuły   (początek strony)

[1]    P. Litewka, J. Przystański, A. Florkiewicz, 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 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, Stateczność ram stalowych z węzłami podatnymi, Przegląd 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, 2021, 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.

Referaty na kongresach, konferencjach i sympozjach        (początek strony)

[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, Pozna񭂳aejewko, 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, 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 6^th 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, 1^st 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, 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, 3^rd 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, 2^nd 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 - 7^th 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 15^th 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 8^th 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, 21^st International Congress of Theoretical and Applied Mechanics, Warsaw, August 15-21, 2004, Abstracts Book, p.218; CD-ROM; Mechanics of the 21^st 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 16^th International Conference on Computer Methods in Mechanics, Cz곴ochowa, 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, 4^th 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 8^th Conference, Gda񳫭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 17^th 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, 8^th World Congress on Computational Mechanics / 5^th 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 18^th 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 Beziers Curves, Springer, Advanced Structured Materials 1, 2010.

[38]  P. Litewka, Numerical comparison of various smoothing techniques in the beam-to-beam contact, 1^st 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 19^th 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, 2^nd 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 30^th 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 20^th 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. odygowski, 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 20^th 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. odygowski, 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, 11^th World Congress on Computational Mechanics WCCM XI, Barcelona, July 27-31, 2014.

[46]  P. Litewka, Frictional multiple-point beam-to-beam contact finite element, 11^th 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, 3^rd Polish Congress of Mechanics - 21th International Conference on Computer Methods in Mechanics, Gdańsk, September 8-11, 2015, Short Papers vol. 1, p. 119-120; in: Advances in Mechanics, M. Kleiber, T. Burczyński, K. Wilde, J. Górski, K. Winkelmann, Ł. Smakosz, Eds., p. 287-291, CRC Press/Balkema, Taylor & Francis Group, London, 2016.

[48]  P. Litewka, Electro-mechanical multiple-point beam-to-beam contact, 3^rd Polish Congress of Mechanics - 21th International Conference on Computer Methods in Mechanics, Gdańsk, September 8-11, 2015, Short Papers vol. 1, p. 121-122; in: Advances in Mechanics, M. Kleiber, T. Burczyński, K. Wilde, J. Górski, K. Winkelmann, Ł. 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, 22^nd 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 22^nd International Conference on Computer Methods in Mechanics, Jerzy Podgorski, Ewa Blazik Borowa, Jarosław Bęc, Tadeusz Burczynski, Mieczyslaw Kuczma, Jarosaw Latalski and Jerzy Warminski, 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, 9^th 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, 4^th Polish Congress of Mechanics - 23^rd International Conference on Computer Methods in Mechanics, Kraków, 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, 24^th International Conference on Computer Methods in Mechanics - 42^nd 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.