HUT / Structural Mechanics / Reijo Kouhia

Some publications

International journal articles

• J. Mäkinen, R. Kouhia, A. Fedoroff, H. Marjamäki, Direct computation of critical equilibrium states for spatial beams and frames , accepted for publication in International Journal for Numerical Methods in Engineering
  • Preprint in pdf format,
• K. Fonteyn, A. Behahcen, R. Kouhia, P. Rasilo, A. Arkkio, FEM for directly coupled magneto-mechanical phenomena in electrical machines, IEEE Transactions on Magnetics, 46, 2010, No.8, pp. 2923--2926. URL:http://dx.doi.org/10.1109/TMAG.2010.2044148
• R. Kouhia, Stabilized forms of orthogonal residual and constant incremental work control path following methods, Computer Methods in Applied Mechanics and Engineering, 197, 2008, pp. 1389--1396. URL:http://dx.doi.org/10.1016/j.cma.2007.11.002
• R. Kouhia, On stabilized finite element methods for the Reissner-Mindlin plate model, International Journal for Numerical Methods in Engineering, 74, 2008, No 8, pp. 1314--1328. URL:http://dx.doi.org/10.1002/nme.2211
• R. Kouhia, Pekka Marjamäki, Jorma Kivilahti, On the implicit integration of rate-dependent inelastic constitutive models , International Journal for Numerical Methods in Engineering, 62, 2005, No 13, pp. 1832--1856. URL:http://dx.doi.org/10.1002/nme.1252
• M. Benzi , R. Kouhia and M. Tůma ; Stabilized and block approximate inverse preconditioners for problems in solid and structural mechanics, Computer Methods in Applied Mechanics and Engineering, 190, 2001, No 49-50, pp. 6533-6554. URL:http://dx.doi.org/10.1016/S0045-7825(01)00235-3
• R. Kouhia and M. Mikkola; Tracing the equilibrium path beyond compound critical points, International Journal for Numerical Methods in Engineering, 46, 1999, No 7, pp. 1049--1074.
• R. Kouhia and M. Mikkola; Some aspects on efficient path following, Computers and Structures , 72, pp. 509--524, 1999.
• M. Benzi , R. Kouhia and M. Tůma ; An assesment of some preconditioning techniques in shell problems, Communications in Numerical Methods in Engineering, 14, 897--906, No 10, 1998.
• R. Kouhia and R. Stenberg ; A linear nonconforming finite element method for nearly incompressible elasticity and Stokes flow, Comp. Meth. Appl. Mech. Eng., 124, 1995 pp. 195-212.
  
• R. Kouhia, C.M. Menken; On the solution of second order post-buckling displacement fields, Comm. Num. Meth. Eng., 11, 1995, pp. 443-453.
  
• A. Eriksson, R. Kouhia; On step size adjustments in structural continuation problems, Comp. Struct., 44, 1995, pp. 495-506.
  
• C.M. Menken, R. Kouhia, W.J. Groot; An investigation into non-linear interaction between buckling modes, Thin-Walled Structures, 19, 1994, pp. 129-145.
  
• R. Kouhia, M. Tuomala; Static and dynamic analysis of space frames using simple Timoshenko type elements, Int. J. Num. Meth. Eng.,36, 1993, pp. 1189-1221.
  
• R. Kouhia; On the solution of non-linear finite element equations, Comp. Struct., 44, 1992, pp. 243-254.
  
• R. Kouhia; On kinematical relations of spatial framed structures, Comp. Struct., 40, 1991, pp. 1185-1191.
  
• R. Kouhia and M. Mikkola; Tracing the equilibrium path beyond simple critical points, Int. J. Num. Meth. Eng.,28, 1989, pp. 2923-2941.
  

Conference papers/presentations

• T. Eirola, J. Hartikainen, R. Kouhia, M. Ristinmaa, M. Wallin, , COMPLAS XI
  • SLIDES in pdf format
• K. Kolari, J. Hartikainen, R. Kouhia, A constitutive model for strain-rate-dependent ductite-to-brittle transition , Proceedings of the 23rd Nordic Seminar on Computational Mechanics Stockholm, 21-22 October, 2010.
  • PAPER in pdf format, SLIDES in pdf format
• J. Mäkinen, R. Kouhia, A. Ylinen, On computing critical equilibrium points by a direct method , Proceedings of the 23rd Nordic Seminar on Computational Mechanics Stockholm, 21-22 October, 2010.
  • PAPER in pdf format,
• H. Askes, J. Hartikainen, K. Kolari, R. Kouhia, Dispersion analysis of a strain-rate dependent ductile-to brittle-transition model , The X Finnish Mechanics Days 3-4.12.2009, Jyväskylä, Finland,
  • PAPER in pdf format, SLIDES in pdf format
• A. Fedoroff, R. Kouhia, H. Marjamäki, J. Mäkinen, On the direct computation of critical equilibrium states in solid and structural mechanics , The X Finnish Mechanics Days 3-4.12.2009, Jyväskylä, Finland,
  • PAPER in pdf format
• A. Fedoroff, R. Kouhia, Anomalous buckling behaviour of truss beams , The X Finnish Mechanics Days 3-4.12.2009, Jyväskylä, Finland,
  • PAPER in pdf format
• K. Kolari, J. Kuutti, J. Hartikainen, R. Kouhia, Some models for numerical simulation of brittle failure , Proceedings of the 22st Nordic Seminar on Computational Mechanics Aalborg, 22-24 October, 2009.
  • SLIDES in pdf format
• A. Belahcen, K. Fonteyn, A. Hannukainen, R. Kouhia, On numerical modeling of coupled magnetoelastic problem , Proceedings of the 21st Nordic Seminar on Computational Mechanics Trondheim, 16-17 October, 2008, T. Kvamsdal, K.M. Mathisen and B. Pettersen (editors), pp. 203-206.
  • PAPER in pdf format, SLIDES in pdf format
• T. Eirola, J. Hartikainen, R. Kouhia, T. Manninen, Some observations on the integration of inelastic constitutive models with damage , Proceedings of the 19th Nordic Seminar on Computational Mechanics Lund, 20-21 October, 2006 O. Dahlblom et al. (editors), pp. 23--32.
  • PAPER in pdf format, SLIDES in pdf format
• J. Hartikainen, P. Hassinen, R. Kouhia, T. Manninen, On the stability of truss beams. Presentation in International Convention in Steel Construction, Hämeenlinna, September 13-14, 2006.
  • SLIDES in pdf format
• S. Fortino, J. Hartikainen, K. Kolari, R. Kouhia, T. Manninen, A constitutive model for strain-rate dependent ductile-to brittle-transition , The IX Finnish Mechanics Days 13-14.6.2006, Lappeenranta, Finland, R. von Herzen and T. Halme (editors), pp. 652--662.
  • PAPER in pdf format, SLIDES in pdf format
• R. Kouhia, M. Rüter, An adaptive integration scheme in computational elasticity , The IX Finnish Mechanics Days 13-14.6.2006, Lappeenranta, Finland, R. von Herzen and T. Halme (editors), pp. 442--451.
  • PAPER in pdf format, SLIDES in pdf format,
• A. Belahcen, K. Fonteyn, S. Fortino, R. Kouhia, A coupled magnetoelastic model for ferromagnetic materials , The IX Finnish Mechanics Days 13-14.6.2006, Lappeenranta, Finland, R. von Herzen and T. Halme (editors), pp. 673--682.
  • PAPER in pdf format,
• J. Hartikainen, R. Kouhia, T. Manninen, A model for concrete at high temperatures, , The IX Finnish Mechanics Days 13-14.6.2006, Lappeenranta, Finland, R. von Herzen and T. Halme (editors), pp. 683--691.
  • PAPER in pdf format, SLIDES in pdf format
• T. Manninen, R. Kouhia, E. Turunen, S.-P. Hannula, Microcrack closure effect on intendation testing of thermally sparyed materials, , The IX Finnish Mechanics Days 13-14.6.2006, Lappeenranta, Finland, R. von Herzen and T. Halme (editors), pp. 50--60.
  • PAPER in pdf format, SLIDES in pdf format
• R. Kouhia, A time discontinuous Petrov-Galerkin method for the integration of inelastic material models , ECCOMAS 2004 24-28.7.2004, Jyväskylä, Finland, P. Neittaanmäki et al. (editors),
  • PAPER in pdf format and SLIDES in pdf format,
• K. Kolari, R. Kouhia, T. Kärnä, Ice failure analysis using strain-softening viscoplastic material model , ECCOMAS 2004 24-28.7.2004, Jyväskylä, Finland, P. Neittaanmäki et al. (editors),
  • PAPER in pdf format and SLIDES in pdf format,
• K. Kolari, R. Kouhia, T. Kärnä, On viscoplastic regularization of strain softening solids , Proceedings of the VIII Finnish Mechanics Days 12.6.-13.6.2003, Espoo, Finland, P. Råback, K. Santaoja and R. Stenberg (editors), pp. 489-496.
  • PAPER in pdf format and SLIDES in pdf format,
• K. Kolari, R. Kouhia, T. Kärnä, Ice failure simulation -- softening material model, Ice in the Enviroment, Volume I. Proceedings of the 16th IAHR International Symposium in Ice, 2-6.12.2002, Dunedin, New Zealand, V.Squire and P.Langhorne (editors), pp. 489-494. (ISBN 1-877139-52-1)
• R. Kouhia, Pekka Marjamäki, On the integration of inelastic constitutive models , Proceedings of the 14th Nordic Seminar on Computational Mechanics, Lund, 19-20 October 2001, L. Beldie, O. Dahlblom, A. Olsson, N.S. Ottosen and G. Sandberg (editors), pp. 33-36.
  • Paper in PDF format
• Pekka Marjamäki, Jorma Kivilahti, R. Kouhia; Comparison of two classes of integration algorithms in creep analysis, paper presented in the 2nd European Conference on Computational Mechanics, Cracow, Poland, June 26-29, 2001.
  • Paper in PDF format
• R. Kouhia and M. Mikkola; Computational aspects of continuation algorithms in large scale problems of solid mechanics, Trends in Computational Structural Mechanics, W.A. Wall, K.-U. Bletzinger, K. Schweizerhof (Eds.), pp. 481-490., CIMNE, Barcelona, 2001.
• M. Benzi , R. Kouhia and M. Tůma ; On some new developments in approximate inverse preconditioning, paper presented in the ECCOMAS 2000 conference, Barcelona, 11-14 September 2000.
  • Paper in PDF format
• R. Kouhia, R. Stenberg, A simple linear nonconforming shell element, paper presented in the Fourth International Colloquium on Computation of Shell & Spatial Structures, Chania, Crete, Greece, June 4-7, 2000.
  • Paper in PDF format
• R. Kouhia, Käytännön näkökohtia rakenteiden stabiiliusanalyysiin Viidennet teräsrakenteiden tutkimus- ja kehityspäivät 18.-19.1.2000, ss. 207--214.
  • Paper in PDF format
• R. Kouhia, Pekka Marjamäki, Jorma Kivilahti; Constitutive models for stress analysis of solder joints , Proceedings of the Twelft Nordic Seminar on Computational Mechanics (NSCM-12), R. Kouhia and M. Mikkola eds., pp. 31--34, Helsinki University of Technology, Laboratory of Theoretical and Applied Mechanics, Publication no 57, 1999.
  • Paper in PDF format
• J.S. Myllymäki and R. Kouhia; Creep buckling of metal columns at elevated temperatures, in Light-Weight Steel and Aluminium Structures -- Proceedings of the Fourth International Conference on Steel and Aluminium Structures, ICSAS'99, 20.-23.6.1999, Espoo, Finland, , P. Mäkeläinen and P. Hassinen eds., pp. 679--686, Elsevier, 1999.
• R. Kouhia; On determinant as singularity test function, in Proceedings of the NSCM XI: Nordic Seminar on Computational Mechanics, A. Eriksson and C. Pacoste eds., pp. 80--83, October 16.-17.10.1998, Stockholm.
  • Paper in PDF
• R. Kouhia; Finite rotations in view of structural stability analysis, in Modelling and Simulation Based Engineering , S.N. Atluri and P.E. O'Donoghue eds., pp. 710--715, Tech Science Press, 1998.
  • Paper in PDF
• R. Kouhia and M. Mikkola; Numerical treatment of multiple bifurcation points, in S.R. Idelsohn, E. Onate and E.N. Dvorkin (eds.) Computational Mechanics, New Trends and Applications, Proceedings of The Fourth World Congress of Computational Mechanics, June 29-July 2, 1998 Buenos Aires, Argentina.
  • Paper in PDF
• R. Kouhia; Using iterative linear solvers in non-linear continuation algorithm, Proceedings of the VI Finnish Mechanics Days, 1997, pp. 253-267, J. Aalto and T. Salmi eds.
  • Paper in pdf
• R. Kouhia and M. Mikkola; Some problems in numerical post-bifurcation analysis, Proceedings of the VI Finnish Mechanics Days, 1997, pp. 227-236, J. Aalto and T. Salmi eds.
  • Paper in pdf
• R. Kouhia; A novel membrane finite element with drilling rotations, Proc. Numer. Meth. Eng. 1996. eds. Ch. Hirsch et al., pp. 415-420.
  
  • Paper in PDF
• R. Kouhia and M. Mikkola; Strategies for structural stability analysis, Advances in Finite Element Technology, 1995, ed. N.-E. Wiberg, CIMNE, Barcelona, pp. 254-278.
  
• J.K. Kivilahti, R. Kouhia; Effect of plastic and creep deformations on thermal stresses in brazed AlN-Metal joints, Proc. of the 4th Int. Conf. on Joining Ceramics, Glass and Metals, 1993, eds. H. Krappitz and H.A. Schaeffer, pp. 160-167.
  
• R. Kouhia, C.M. Menken; On the discretization strategy in the analysis of plated thin-walled structures, Proc. Num. Meth. Eng. 92, eds. Ch. Hirsch et al., pp. 413-419.
  

Lecture notes

• R. Kouhia, M. Tuomala; Rakenteiden mekaniikan numeeriset menetelmät (Numerical methods in structural mechanics)
• R. Kouhia; Computational techniques for the non-linear analysis of structures
• Rakenteiden mekaniikan menetelmiä metallirakentajille
• OSA1
• OSA2
• OSA3

Others

• J. Hartikainen, R. Kouhia. Elementtimenetelmän lineaarisen yhtälösysteemin iteratiivisesta ratkaisusta (On the iterative solution of linear equations in the finite element method). Rakenteiden Mekaniikka, 43, 2010, No 2, pp. 94-126.
  • Paper in PDF
• Muutama huomio momenttimenetelmän käytöstä kehärakenteiden analysoinnissa. Rakenteiden Mekaniikka, 42, 2009, No 2, pp. 75-82.
  • Paper in PDF
• J. Hartikainen, P. Hassinen, R. Kouhia, T. Manninen. Ristikkopalkkien stabiiliudesta (On the stability of truss beams). Rakenteiden Mekaniikka, 40, 2007, No 2, pp. 48-60.
  • Paper in PDF
• Techniques for the analysis of non-linear systems - with applications to solid and structural mechanics, Acta Polytechnica Scandinavica, Ci 116, 1999, 87 + 126 pp.
• Eräitä matala-asteisia laattaelementtejä (On some low-order plate bending elements) Rakenteiden Mekaniikka, 29, 1996, No 3-4, pp. 51-68.
  • Paper in PDF

HUT / Structural Mechanics / Reijo Kouhia