Reijo Kouhia
Publications
Conference presentations,
Lecture notes,
Others
Peer reviewed journal articles and book chapters
- K. Kolari, R. Kouhia.
Ortotrooppinen lineaarikimmoinen materiaalimalli.
Rakenteiden Mekaniikka,
56, issue 4, 2023, 146-160.
DOI.
Open access.
- T. Saksala, R. Kouhia.
A damage-plasticity model for brittle materials based on a smooth approximation of Rankine type of failure criterion.
Rakenteiden Mekaniikka,
56, issue 4, 2023, 136-145.
DOI.
Open access.
- R. Kouhia, T. Saksala.
A recursion formula for the integer power of a symmetricsecond-order tensor and its application to computational plasticity.
Rakenteiden Mekaniikka,
56, issue 4, 2023, 127-135.
DOI.
Open access.
- T. Saksala, A. Rubio Ruiz, R. Kouhia, A. Kane, M. Hokka.
Modelling of fatigue damage in granitic rock by piezoelectric effect in quartz phase due to alternating current excitation.
Geomechanics and Geophysics for Geo-Energy and Geo-Resources,
9:83, 2023,
DOI.
- A. Usman, S. Arif, A.H. Raja, R. Kouhia, A. Almqvist, M. Liwicki.
Machine learning composite-nanoparticle-enriched lubricant oil development for inproved frictional performance - an experiment.
Lubricants,
11, issue 6, 2023, 254.
DOI. Open access.
- A. Rubio Ruiz, T. Saksala, D. Baroudi, M. Hokka, R. Kouhia.
High-cycle fatigue model calibration with a deterministic optimization approach
International Journal of Fatigue,
175, 2023, 107747.
DOI. Open access.
- H. Milanchian, T. Salmi, A. Halbach, R. Kouhia.
HTS tape mechanical behavior sensitivity on material properties and thickness of material layers.
IEEE Transactions on Applied Superconductivity,
33, 2023, Issue 5, 8400605
DOI.
- T. Saksala, K. Kolari, R. Kouhia.
Modelling the effect of concrete cement composition on its strength and failure behavior
Rakenteiden Mekaniikka,
55, 2022, Issue 3, 55-65,
DOI. Open access.
- L. Obrezkov, M. Matikainen, R. Kouhia.
Micropolar beam-like structures under large deformation.
International Journal of Solids and Structures,
254-255, 2022, 111899.
DOI. Open access.
- K. Kolari, R. Kouhia.
Poikittaisisotrooppinen lineaarikimmoinen materiaalimalli.
Rakenteiden Mekaniikka,
55, 2022, Issue 1, 1-13,
DOI. Open access.
- S. Abe, R. Kouhia, R. Nikander, N. Narra, J. Hyttinen, H. Sievänen.
Effect of fall direction on the lower hip fracture risk in athletes with different loading histories: A finite element modeling study in multiple sideways fall configurations.
Bone,
158, 2022, 116351,
DOI. Open access.
- K. Kolari, R. Kouhia.
Strength of ice in brittle regime - multiscale approach.
Chapter 2 in IUTAM Symposium on Physics and Mechanics
of Sea Ice, IUTAM Bookseries 39. J. Tuhkuri and A. Polojärvi (eds.). 2022.
DOI. Open access.
- T. Frondelius, T. Kaarakka, R. Kouhia, J. Mäkinen, H. Orelma, J. Vaara.
Stochastic continuum approach to high-cycle fatigue: Modelling stress history as a stochastic process.
European Journal of Mechanics - A/Solids,
92, 2022, 104454,
DOI. Open access.
- J. Vilppo, R. Kouhia, J. Hartikainen, K. Kolari, A. Fedoroff, K. Calonius.
Anisotropic damage model for concrete and other quasi-brittle materials.
International Journal of Solids and Structures,
225, 2021, 111048,
DOI. Open access.
- T. Saksala, R. Kouhia, A. Mardoukhi, M. Hokka.
Thermal jet drilling of granite rock: a numerical 3D finite-element study.
Philosophical Transactions of the Royal Society A,
379: 20200128,
DOI.
- T. Frondelius, T. Kaarakka, O. Kaleva, R. Kouhia, H. Orelma, J. Vaara.
Varmuuskerroin jännitysväsymisen kontinuumimallissa.
Rakenteiden Mekaniikka,
54, 2021, Issue 1, 21-29,
DOI. Open access.
- A. Jahanpour, R. Kouhia.
An explicit solution for inelastic buckling of rectangular plates subjected to combined biaxial and shear loads.
Acta Mechanica,
232, 2021, 1641-1682.
DOI.
- H. Askes, J. Hartikainen, K. Kolari, R. Kouhia, T. Saksala, J. Vilppo.
On the Kachanov-Rabotnov continuum damage model.
Rakenteiden Mekaniikka,
53, 2020, Issue 2, 125-144,
DOI. Open access.
- U. Ahmed, U. Audin, M. Zucca, S. Palumbo, R. Kouhia, P. Rasilo.
Modeling a Fe-Ga energy harvester fitted with magnetic closure using 3D magneto-mechanical finite element model
Journal of Magnetism and Magnetic Materials,
500, 2020, article 166390,
DOI.
- T. Kaarakka, T. Frondelius, O. Kaleva, R. Kouhia, H. Orelma, J. Vaara.
Jännitysväsymisen kontinuumimalli.
Rakenteiden Mekaniikka,
52, 2019, Issue 4, 236-243,
DOI. Open access.
- T. Saksala, M. Pressacco, S. Holopainen, R. Kouhia.
Numerical modelling of heat generation during shear band formation in rock.
Rakenteiden Mekaniikka,
52, 2019, Issue 2, 53-60,
DOI. Open access.
- P. Rasilo, U. Audin, F. Martin, A. Belahcen, R. Kouhia, L. Daniel.
Equivalent strain and stress models for the effect of mechanical loading on the permeability of ferromagnetic materials.
IEEE Transactions on Magnetics,
55, 2019, Issue 6,
DOI.
- P. Rasilo, D. Singh, J.Jeronen, U. Audin, F. Martin, A. Belahcen, L. Daniel, R. Kouhia.
Flexible identification procedure for thermodynamic constitutive models for magnetostrictive materials.
Proceedings of the Royal Society A,
475, 2019, Issue 2223,
DOI. Open access.
- A. Belahcen, P. Rasilo, K. Fonteyn, R. Kouhia, D. Singh, A. Arkkio.
Modeling the stress effect on the measurement of magnetostriction in electrical sheets under rotational magnetization.
Rakenteiden Mekaniikka,
51, 2018, 27-35.
Article. Open access.
- S. Abe, N. Narra, R. Nikander, J. Hyttinen, R. Kouhia, H. Sievänen.
Impact loading history modulates hip fracture load and location: A finite element simulation study of the proximal femur in female.
Journal of Biomechanics,
76, 2018, 136-143.
DOI
- N.S. Ottosen, M. Ristinmaa, R. Kouhia.
Enhanced multiaxial fatigue criterion that considers stress gradient effects.
International Journal of Fatigue,
116, 2018, 128-139.
DOI
- J.S. Murtomäki, R. Kouhia, A. Stenvall, L. Bottura, G. Kirby, J. van Nugtaren, G. DeRijk, L. Rossi.
Investigation of REBCO Roebel cable irreversible critical current degradation under transverse pressure.
IEEE Transactions on Applied Superconductivity,
28, 2018, Issue 4.
DOI
- N. Narra, S. Abe, V. Dimitrov, R. Nikander, R. Kouhia, H. Sievänen, J. Hyttinen.
Ricci-flow based conformal mapping of the proximal femur to identify exercise loading effects.
Scientific Reports,
8, 2018, 4823.
DOI
- P. Kauppila, R. Kouhia, J. Ojanperä, T. Saksala, T. Sorjonen.
Metallien virumismurron ja virumisväsymisen mallintaminen. Rakenteiden Mekaniikka, 50, 2017, 420-450. Article. Open access.
- P. Kauppila, R. Kouhia, J. Ojanperä, T. Saksala, T. Sorjonen.
On the modelling of creep fracture and fatigue. Key Engineering Materials, 754, 2017, 202-205. DOI
- D. Singh, K. Mökkönen, J. Poutala, P. Rasilo, A. Belahcen, R. Kouhia.
Preliminary results on the effect of plastic deformation on magnetic properties.
Rakenteiden Mekaniikka,
50, 2017, pp. 372-375,
https://doi.org/10.23998/rm.65180. Open access.
- S. Danaee, R. Kouhia, P. Rasilo, A. Belahcen, D. Singh, M. Ristinmaa.
A model for magneto-elastic behaviour.
Rakenteiden Mekaniikka,
50, 2017, pp. 349-352,
https://doi.org/10.23998/rm.65307. Open access.
- J. Jussila, T. Kaarakka, R. Kouhia, J. Mäkinen, H. Orelma, N.-S. Ottosen, M. Ristinmaa, T. Saksala.
A new paradigm for fatigue analysis - evolution equation based continuum approach.
Rakenteiden Mekaniikka,
50, 2017, pp. 333-336,
https://doi.org/10.23998/rm.65096. Open access.
- U. Aydin, P. Rasilo, F. Martin, D. Singh, L. Daniel, A. Belahcen, M. Rekik, O. Hubert, R. Kouhia, A. Arkkio.
Magneto-mechanical modeling of electrical sheet steels.
Journal of Magnetism and Magnetic Materials,
439, 2017, pp. 82-90,
DOI
- U. Aydin, P. Rasilo, F. Martin, D. Singh, L. Daniel, A. Belahcen, R. Kouhia, A. Arkkio.
Modeling of the effect of multiaxial stress on magnetic hysteresis of electrical steel sheets: A comparison .
IEEE Transactions on Magnetics,
53, 2017, No.6, Art. 2000904,
DOI
- P. Rasilo, S. Steentjes, A. Belahcen, R. Kouhia, K. Hameyer.
Model for stress-dependent hysteresis in electrical steel sheets including orthotropic anisotropic .
IEEE Transactions on Magnetics,
53, 2017, No.6, Art. 20001004,
DOI
- S. Holopainen, T. Barriere, G. Cheng, R. Kouhia.
Continuum approach for modeling fatigue in amorphous glassy polymers. Applications to the investigation of damage-ratcheting interaction in polycarbonate. International Journal of Plasticity, 91, 2017, pp. 109-133, DOI
- S. Holopainen, J. Juoksukangas, R. Kouhia, A. Lehtovaara, T. Saksala.
An investigation of fatigue damage development under complete fretting test condition. Rakenteiden Mekaniikka, 49, No 3, 2016, pp. 151-159. PDF
- J. Hartikainen, R. Kouhia, M. Mikkola, J. Mäkinen.
Muodonmuutoksen mitat kontinuumimekaniikassa. Rakenteiden Mekaniikka, 49, No 2, 2016, pp. 86-99. PDF
- R. Kouhia, S. Pajunen, J. Poutala.
On optimisation of structures under stability constraints - a simple example. Rakenteiden Mekaniikka, 49, No 2, 2016, pp. 69-77. PDF
- J. Hartikainen, K. Kolari, R. Kouhia.
Development and numerical implementation of an anisotropic continuum damage model for concrete. Key Engineering Materials, 713, 2016, 115-118. DOI
- S. Holopainen, R. Kouhia, T. Saksala.
Continuum approach for modelling transversely isotropic high-cycle fatigue. European Journal of Mechanics - A/Solids, 60, 2016, 183-195. DOI
- S. Abe, N. Narra, R. Nikander, J. Hyttinen, R. Kouhia, H. Sievänen.
Exercise loading history and femoral neck strength in a sideways fall: A three-dimensional finite element study.
Bone,
92, 2016, 9-17.
DOI
- P. Kauppila, R. Kouhia, J. Ojanperä, T. Saksala and T. Sorjonen.
A continuum damage model for creep fracture and fatigue analyses.
Structural Integrity Procedia, 2, 2016, 887-894,
Open access DOI
- S. Holopainen, R. Kouhia, J. Könnö and T. Saksala.
Computational modelling of transversely isotropic high-cycle fatigue using a continuum based model.
Structural Integrity Procedia, 2, 2016, 2718-2725.
Open access DOI
- P. Rasilo, D. Singh, U. Aydin, F. Martin, R. Kouhia, A. Belahcen, A. Arkkio.
Modeling of hysteresis losses in ferromagnetic laminations under mechanical stress .
IEEE Transactions on Magnetics,
52, 2016, No.3, Art. 7300304,
DOI
- A. Ylinen, J. Mäkinen, R. Kouhia.
Two models for hydraulic cylinders in flexible multibody simulations.
Computational Methods for Fluids and Solids , A. Ibrahimbegovic (Ed.), Volume 41 in series Computational Methods in Applied Sciences, 2016, pp. 462--493.
DOI
- R. Kouhia, P. Marjamäki, J. Kivilahti.
Some aspects on efficient solution of creep problems. Rakenteiden Mekaniikka, 48, 2015, No 4, pp. 199--210.
- S. Tahaei Yaghoubi, R. Kouhia, J. Hartikainen, K. Kolari.
A continuum damage model based in Ottosen's four parameter failure criterion for concrete. Rakenteiden Mekaniikka, 47, 2014, No 2, pp. 50--66.
- E.-M. Salonen, R. Kouhia, R. Holopainen,
Weighting function selection problem in the Galerkin method.
International Journal of Mechanical Engineering Education,
41, 2013, No.2, pp. 115--135.
DOI
- A. Behahcen, K. Fonteyn, R. Kouhia, P. Rasilo, A. Arkkio,
Magnetomechanical coupled FE simulations of rotating electrical machines ,
COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering,
32, 2013, No.5, pp. 1484--1499. DOI
- A. Fedoroff, R. Kouhia,
Out-of-plane elastic buckling of truss beams,
Structural Engineering and Mechanics,
45, 2013, No.5, pp. 613--629.
DOI
- R. Kouhia. On the solution of non-linear diffusion equation.
Rakenteiden Mekaniikka, 46, 2013, No 4, pp. 116-130.
- R. Kouhia. Katsaus mikropolaariseen kontinuumimalliin (An overview to the micropolar continuum model).
Rakenteiden Mekaniikka, 46, 2013, No 3, pp. 70-90.
- K. Fonteyn, A. Behahcen, P. Rasilo, R. Kouhia, A. Arkkio,
Contribution of Maxwell stress in air on the deformations of induction machines ,
Journal of Electrical Engineering & Technology,
7, 2012, No.3, pp. 336--341. URL:http://dx.doi.org/10.5370/JEET.2012.7.3.226
- R. Kouhia, M. Tůma , J. Mäkinen, A. Fedoroff, H. Marjamäki,
Implementation of a direct procedure for critical point computations using preconditioned iterative solvers
,
Computers and Structures, 108-109, 2012, pp. 110--117.
URL:http://dx.doi.org/10.1016/j.compstruc.2012.02.009
- J. Mäkinen, R. Kouhia, A. Fedoroff, H. Marjamäki,
Direct computation of critical equilibrium states for spatial beams and frames
,
International Journal for Numerical Methods in Engineering,
89, 2012, No 2, pp. 135--153.
URL:http://dx.doi.org/10.1002/nme.3233
- A. Fedoroff, R. Kouhia. A geometric approach in numerical eigenproblem analysis. Rakenteiden Mekaniikka, 45, 2012, No 3, pp. 104-124.
- 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
- 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.
- R. Kouhia.
Muutama huomio momenttimenetelmän käytöstä kehärakenteiden analysoinnissa.
Rakenteiden Mekaniikka, 42, 2009, No 2, pp. 75-82.
- 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
- 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.
- 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; Eräitä matala-asteisia laattaelementtejä (On some low-order
plate bending elements)
Rakenteiden Mekaniikka, 29, 1996, No 3-4, pp. 51-68.
- 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;
Simple finite elements for nonlinear analysis of framed structures,
Rakenteiden Mekaniikka, 23, 1990, No 4, pp. 3-49.
- R. Kouhia and
M. Mikkola;
Tracing the equilibrium path beyond simple critical points,
Int. J. Num. Meth. Eng.,28, 1989, pp. 2923-2941.
- R. Kouhia;
Adaptiivisuudesta ja siirtymäsuureiden jälkikäsittelystä sekaelementtimenetelmässä (On adaptivity and post-processing of displacement quantities in mixed finite element method),
Rakenteiden Mekaniikka, 22, 1989, No 4, pp. 3-12.
- R. Kouhia;
Hybridi- ja sekaelementtimenetelmistä (On hybrid and mixed finite element methods),
Rakenteiden Mekaniikka, 20, 1987, No 2, pp. 3-22.
- R. Kouhia;
Rakenteen jälkikriittisen tilan määrittäminen elementtimenetelmällä (Analysis of post-critical response of structures by the finite element method),
Rakenteiden Mekaniikka, 20, 1987, No 1, pp. 12-30.
- R. Kouhia;
Newtonin iteraatiot epälineaarisessa rakenneanalyysissä (Iterations of Newtonian type in nin-linear structural analysis),
Rakenteiden Mekaniikka, 19, 1986, No 4, pp. 15-51.
Top
Conference papers/presentations
-
J. Vilppo, R. Kouhia, J. Hartikainen, K. Kolari, A. Fedoroff, K. Calonius.
Continuum damage model for concrete.
fib International Congress. Oslo, Norway. June 12-16, 2022.
SLIDES.
-
J. Jeronen, R. Kouhia, J. Lahtinen, H. Orema.
Assessment of some integration methods for an evolution equation based high-cycle fatigue model.
ECCOMAS Congress. Oslo, Norway. June 5-9, 2022.
SLIDES.
-
H. Askes, J. Hartikainen, K. Kolari, R. Kouhia, T. Saksala, J. Vilppo.
An investigation into the behaviour of the Kachanov-Rabotnov type continuum damage model.
XIV Finnish Mechanics Days. SMP2022, May 18-20, 2022. Lappeenranta.
SLIDES.
-
H. Askes, J. Hartikainen, K. Kolari, R. Kouhia, T. Saksala, J. Vilppo.
An investigation into the behaviour of the Kachanov-Rabotnov type continuum damage model.
25th International Congress of Theoretical and Applied Mechanics. ICTAM2020+1, August 22-27, 2021.
SLIDES.
Abstract.
-
T. Frondelius, S. Holopainen, R. Kouhia, N.S. Ottosen, M. Ristinmaa, J. Vaara.
A continuum based macroscopic unified low- and high cycle fatigue model.
12th International conference on multiaxial fatigue and fracture ICMFF12, June 24-26, 2019, Bordeaux, France.
SLIDES.
Paper DOI, open access.
-
P. Kauppila, R. Kouhia, J. Ojanperä T. Saksala, T. Sorjonen.
Implementation of a continuum damage model for creep fracture and fatigue analyses to ANSYS.
Presented at the NAFEMS Seminar Improving Simulation Predictions by Using Advanced Material Models, April 2-3, 2019, Lund, Sweden.
SLIDES.
-
Requirements for iterative linear equation solvers in problems of solid- and structural mechanics.
Presented at the MTU60:Let's make it sparse workshop, January 31, 2019, Prague, Czech Republic.
SLIDES.
- A. Belahcen, R. Kouhia, P. Rasilo, M. Ristinmaa.
A model for magnetoelastic interaction with special reference to giant magnetostrictive behaviour
Presented at the ECCM-ECFD 2018, 11-15 June, 2018, Glasgow, UK.
SLIDES.
- R. Kouhia, S. Holopainen, N.S. Ottosen, M. Ristinmaa, T. Saksala.
A unified LCF-HCF model based on continuum mechanics.
Presented at the NSCM29, 26-28 October, 2016, Gothenburg, Sweden.
Paper,
SLIDES.
- J. Hartikainen, K. Kolari, R. Kouhia.
Development and numerical implementation of an anisotropic continuum damage model for concrete
Presented at the 15th International Conference on Fracture and Damage Mechanics, 14-16 September, 2016, Alicante, Spain.
SLIDES,
- S. Holopainen, R. Kouhia, N.S. Ottosen, M. Ristinmaa, T. Saksala.
Modelling of anisotropic fatigue
Presented at the 24th International Congress of Theoretical and Applied Mechanics, 21-26 August, 2016, Montreal, Canada.
Abstract,
SLIDES,
- P. Kauppila, R. Kouhia, J. Ojanperä, T. Saksala and T. Sorjonen.
A continuum damage model for creep fracture and fatigue analyses.
Presented at European Conference on Fracture, ECF21, 20-24 June, 2016,
SLIDES, my presentation at
YouTube,
- S. Holopainen, R. Kouhia, J. Könnö and T. Saksala.
Computational modelling of transversely isotropic high-cycle fatigue using a continuum based model.
Presented at European Conference on Fracture, ECF21, 20-24 June, 2016,
Timo's presentation at
YouTube,
- S. Holopainen, R. Kouhia, J. Könnö and T. Saksala.
Computational modelling of high-cycle fatigue using a continuum based model
.
Proceedings of the 28th Nordic Seminar on Computational Mechanics, NSCM-28, A. Berezovski, K. Tamm, T. Peets (eds.),
Tallinn, 22-23 October, 2015, pp. 71-74.
- S. T. Yaghoubi, J. Hartikainen, K. Kolari and R. Kouhia.
An anisotropic continuum damage model for concrete
.
Proceedings of the XII Finish Mechanics Days, R. Kouhia et al. (eds.),
Tampere, 4-5 June, 2015, pp. 51-56.
- T. Saksala, S. Holopainen and R. Kouhia.
On the choice of damage variable in he continuum fatigue model based on a moving endurance surface
.
Proceedings of the XII Finish Mechanics Days, R. Kouhia et al. (eds.),
Tampere, 4-5 June, 2015, pp. 57-62.
- J. Jeronen and R. Kouhia.
On the effect of damping on stability of non-conservative system
.
Proceedings of the XII Finish Mechanics Days, R. Kouhia et al. (eds.),
Tampere, 4-5 June, 2015, pp. 77-82.
- S. Abe, A. Ylinen, N. NarraGirish, R. Nikander, J. Hyttinen, R. Kouhia and H. Sievänen.
Exploration of different boundary conditions in the sideways falling situation in hip fracture finite element modeling
.
Proceedings of the XII Finish Mechanics Days, R. Kouhia et al. (eds.),
Tampere, 4-5 June, 2015, pp. 130-135.
- A. Belahcen, R. Kouhia, P. Rasilo and M. Ristinmaa.
A model for anisotropic magnetostriction
.
Proceedings of the XII Finish Mechanics Days, R. Kouhia et al. (eds.),
Tampere, 4-5 June, 2015, pp. 201-203.
- A. Eriksson, R. Kouhia, and J. Mäkinen.
On the direct solution of critical equilibrium states
.
Proceedings of the XII Finish Mechanics Days, R. Kouhia et al. (eds.),
Tampere, 4-5 June, 2015, pp. 244-247.
- S. T. Yaghoubi, R. Kouhia, J. Hartikainen, and K. Kolari.
A continuum damage model for quasi-brittle materials
Proceedings of the 27th Nordic Seminar on Computational Mechanics NSCM-27, A Eriksson et al. (eds.),
Stockholm, October, 2014.
- R. Kouhia, S. Holopainen, T. Saksala and A. Roiko.
Multiaxial high-cycle transversely isotropic fatigue model
14th European Mechanics of Materials Conference,
Gothenburg, 27-29 August, 2014.
- R. Kouhia and A.H. Niemi.
On the numerical solution of a micropolar continuum model.
NSCM-26
Oslo, 23-25 October, 2013.
- A. Fedoroff, R. Kouhia, J. Mäkinen,
A geometric approach in computational stability analysis
,
NSCM-25
Lund, 25-26 October, 2012.
- K. Kolari, J. Hartikainen, R. Kouhia,
Modelling strain-rate-dependent
ductite-to-brittle transition
,
Proceedings of the 8th European Solid Mechanics Conference
Graz, 9-13 July, 2012.
- T. Eirola, J. Hartikainen, R. Kouhia, M. Ristinmaa, M. Wallin,
,
COMPLAS XI
- 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.
- 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.
- 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,
- 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,
- A. Fedoroff, R. Kouhia,
Anomalous buckling behaviour of truss beams
,
The X Finnish Mechanics Days 3-4.12.2009,
Jyväskylä, Finland,
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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),
- 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),
- 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.
- 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.
- 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.
- 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.
- 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.
- R. Kouhia,
Käytännön näkökohtia
rakenteiden stabiiliusanalyysiin
Viidennet teräsrakenteiden tutkimus- ja kehityspäivät
18.-19.1.2000, ss. 207--214.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- R. Kouhia;
A novel membrane finite element with drilling rotations,
Proc. Numer. Meth. Eng. 1996. eds. Ch. Hirsch et al.,
pp. 415-420.
- 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.
Top
Lecture notes
Top
Others
- J. Jeronen, R. Kouhia.
On the stability and trajectories of the pendelum with linear springs and dampers.
2016, University of Jyväskylä, Reports of the Depertment of
Mathematical Information Technology, Series B, Scientific Computing; Vol 9. 51 p.
- R. Kouhia, T. Saksala, L. Kettunen, T. Kovanen.
Sähkömagneettisen kentän ja pst-projektiilin vuorovaikutuksen mallinnus. (Modelling the interaction of electromag-
netic field on an anti-armour projectile)
MATINE Summary Report 2014/2500M-0004, 9 p.
- R. Kouhia. Betonin ajasta riippumattomat materiaalimallit.
Liikenneviraston tutkimuksia ja selvityksiä, 2013, No 38.
- J. Hartikainen, R. Kouhia, T. Wallroth; Permafrost simulations at Forsmark using a 2D thermo-hydro-chemical model, SKB TR-09-17.
- Techniques for the analysis of non-linear systems -
with applications to solid and structural mechanics,
Acta Polytechnica Scandinavica, Ci 116, 1999, 87 + 126 pp. (doctoral dissertation)
- Non-linear finite element analysis of space frames
,
Helsinki University of Technology, Department of Structural Engineering, Report 109, 1990, 118 p. (licentiate's thesis).
- M. Tuomala, R. Kouhia.
Adaptive finite element analysis of geometrically non-linear elasto-plastic structures.
Report 10, Tampere University of Technology, Department of Civil Engineering, Structural Mechanics, 20 p. 1986.
-
My friend Hannu Hirsi asked me to give a presentation on the history of structural engineering and mechanics in 2011 as a part of his course.
Here are the slides (in Finnish)
Reijo Kouhia
Last modified 30.12.2023 RK