ResearcherID: G-7841-2014

Impact Publications
J. Kopačka, D. Gabriel, J. Plešek, M. Ulbin, Assessment of methods for computing the closest point projection, penetration and gap functions in contact problems, in Int. J. Numer. Methods Eng., 2015, doi: 10.1002/nme.4994.

R. Kolman, S. V. Sorokin, B. Bastl, J. Kopačka, J. Plešek, Isogeometric analysis of free vibration of simple shaped elastic samples, in Journal of the Acoustical Society of America, vol. 137, no. 4, p. 2089-2100, 2015, doi: 10.1121/1.4916199.

Proceedings
J.Kopačka, D. Gabriel, R. Kolman, J. Plešek, On the contact pressure oscillations of an isogeometric contact-impact algorithm, in YIC GACM 2015, Aachen, Germany, July 20-22, 2015. pdf

J.Kopačka, D. Gabriel, R. Kolman, J. Plešek, Isogeometric contact analysis: A study of an explicit dynamic contact algorithm, in Proc. VKMKP 2014, Pilsen, Czech Republic, October 27, 2014. pdf

J. Kopačka, D. Gabriel, J. Plešek, R. Kolman, Influence of mass lumping techniques on contact pressure oscillations in explicit finite element contact-impact algorithm based on isogeometric analysis with NURBS, in Proc. SVCS International Symposium on Stability, Vibration, and Control of Machines and Structures, Belgrade, Serbia, July 3-5, 2014. link

J. Kopačka, D. Gabriel, R. Kolman, J. Plešek, M. Ulbin, Studies in numerical stability of explicit contact-impact algorithm to the finite element solution of wave propagation problems, in Proc. 4th ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, Kos Island, Greece, June 12-14, 2013. pdf

J. Kopačka, R. Kolman, D. Gabriel, J. Plešek, Frictionless contact of elastic bodies: Comparison of treatment in finite element analysis and isogeometric analysis, in Proc. Engineering Mechanics 2012, Svratka, Czech Republic, May 14-17, 2012. pdf

J. Kopačka, D. Gabriel, J. Plešek, M. Ulbin, Utilising optimization methods for computing of normal vector to contact surface, in Proc. Engineering Mechanics 2010, Svratka, Czech Republic, May 10-13, 2010. pdf

Posters
J.Kopačka, D. Gabriel, R. Kolman, J. Plešek, On the contact pressure oscillations of an isogeometric contact-impact algorithm, in AC.CES 2015, Aachen, Germany, July 23-24, 2015. pdf

J.Kopačka, D. Gabriel, J. Plešek, M. Ulbin, Computation of the distance between a point and a quadratic surface with application in contact mechanics, in EUROMECH Colloquium 540, Advanced Modelling of Wave Propagation in Solids, Prague, Czech Republic, October 1-3, 2012. pdf

Master's Thesis
J. Kopačka, Assessment of numerical procedures for determination of the penalty function in contact problems, Master's thesis, 2010. pdf