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Rostislav Čech, Petr Horyl and Pavel Maršálek

References [1] Čech, R.: Modelling Two-seat Connection to the Frame of Rail Wagon in Terms of Resistance at Impact Test. Ostrava: VŠB - TUO, 2015. Diploma thesis. (in Czech) [2] Masopust, J.: Impact Resistance Test of Welded Two-seat Connection. Fryčovice: BORCAD cz s.r.o., 2014. Technical report. (in Czech) [3] Wu, S. R., Gu, L.: Introduction to the Explicit Finite Element Method for Nonlinear Transient Dynamics, New Jersey, John Wiley & Sons, Inc., 2012. ISBN 9780470572375. [4] Abdollahpoor, A

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Dagmar Ličková, Radim Halama and Zdeněk Poruba

Advisory Committee for Aeronautics, 1943. [4] Halama, R., Markopoulos, A., Šofer, M., Poruba, Z., Matušek, P.: Cyclic plastic properties of class C steel emphasizing on ratcheting: testing and modelling, Strojnícky časopis - Journal of Mechanical Engineering, 2015, 65, No. 1, 21-26. [5] Šofer, M., Fajkoš, R., Halama, R.: Influence of Induction Hardening on Wear Resistance in Case of Rolling Contact, Strojnícky časopis - Journal of Mechanical Engineering, 2016, 66, No.1, 17-26.

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P. Staňák, J. Sládek and V. Sládek

Abstract

In this paper, a meshless local Petrov-Galerkin (MLPG) method is proposed to calculate mechanical and electrical responses of three-dimensional piezoelectric semiconductors under static load. The analyzed solid is discretized by a set of generally distributed nodal points distributed over 3D geometry. Local integral equations (LIEs) are derived from the weak form of governing equations over small local subdomains. The subdomains have a spherical shape with a nodal point located in its centre. A unit step function is used as the test functions in the local weak-form. The moving least-squares (MLS) method is adopted for the approximation of the physical quantities in the LIEs. The proposed MLPG method is verified by using the corresponding results obtained with the finite element method. Numerical examples are presented and discussed for various boundary conditions and loading scenarios to show the performance of the developed MLPG method for analysis piezoelectric semiconducting solids.

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Lyubomyr Poberezhny, Andrij Hrytsanchuk, Igor Okipnyi, Liubov Poberezhna, Andrij Stanetsky and Nadiya Fedchyshyn

REFERENCES [1] 9th Report of the European Gas Pipeline Incident Data Group (period 1970 – 2013 ) https://www.egig.eu/startpagina/$61/$156 [2] Prinz, W. “AC induced corrоsion on cathodically protected pipelines”, UK Corrosion 92, vol.1, pp. 503 – 514, 1992 . [3] Stalder, F. “Pipelines failures”, Materials Science Forum 247, pp. 139 – 146, 1997 . [4] Wakelin, R. G. “AC corrosion – case histories, test procedures, and mitigation“ / R. G. Wakelin, R. A. Gummow, S. M. Segall // Conference: Corrosion 98, San Diego CA, USA, Paper number 565

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Aloizs Lešinskis and Rafał Chatys

knowledge: Signals, signs and symbols, and their distinctions in human performance models,” IEEE Transactions on Systems, Man, and Cybernetics , vol. SMC-13, issue 3, pp. 257–266, 1983. https://doi.org/10.1109/TSMC.1983.6313160 [9] A. M. Gentile, “A working model of skill acquisition with applications to teaching,” Quest , vol. 17, pp. 3–23, 1972. https://doi.org/10.1080/00336297.1972.10519717 [10] A. M. Gentile, “Skill acquisition: Action, movement, and neuromotor processes,” in Movement science: Foundations for physical therapy , 2nd ed., H. Carr and R

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Vitālijs Pavelko and Aleksandr Nevskij

identification,” Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences , vol. 359, issue 1778, pp. 131–149, 2001. [9] M. N. Rezai, J. E. Bernard, and J. M. Starkey, “Empirical modal analysis,” The Shock and Vibration Digest , vol. 15, 1983. [10] D. J. Ewins, Modal Testing: Theory, Practice and Application . Baldock: Research Studies Press, UK, 2003. [11] M. W. Halling, I. Muhammad, and K. C. Womack, “Dynamic testing for condition assessment of bridge bents,” Journal of Structural Engineering, ASCE, vol. 127