"3"^^ . . "Fast Fourier Transform based Method for Modelling of Heterogeneous Materials" . "2011-01-24+01:00"^^ . . "Heterogeneous materials, FFT"@en . "SNA'11 Seminar on Numerical Analysis. Modelling and Simulation of Challenging Engineering Problems" . . . . "3"^^ . "RIV/68407700:21110/11:00181243!RIV12-MSM-21110___" . . "Vond\u0159ejc, Jaroslav" . "Fast Fourier Transform based Method for Modelling of Heterogeneous Materials"@en . "In this contribution, we present a new approach to accelerating the convergence of a FFT-based solver for numerical homogenization of complex periodic media proposed by Moulinec and Suquet. The approach relies on discretization of the governing integral equation by the trigonometric collocation method due to Vainikko, resulting in a linear system which can be efficiently solved using conjugate gradient methods. Computational experiments presented below confirm robustness of the algorithm with respect to setting of internal parameters and a significant increase of the convergence rate for problems with high-contrast coefficients at a negligible overhead cost per iteration."@en . "\u00DAstav geoniky AV \u010CR" . "3"^^ . . . . "Fast Fourier Transform based Method for Modelling of Heterogeneous Materials" . . "Ro\u017Enov pod Radho\u0161t\u011Bm" . "978-80-86407-19-7" . . "http://www.ugn.cas.cz/index.php?l=cz&a=&p=events/2011/sna/index.php" . . . "21110" . . . "In this contribution, we present a new approach to accelerating the convergence of a FFT-based solver for numerical homogenization of complex periodic media proposed by Moulinec and Suquet. The approach relies on discretization of the governing integral equation by the trigonometric collocation method due to Vainikko, resulting in a linear system which can be efficiently solved using conjugate gradient methods. Computational experiments presented below confirm robustness of the algorithm with respect to setting of internal parameters and a significant increase of the convergence rate for problems with high-contrast coefficients at a negligible overhead cost per iteration." . . . "[4B69D16CA0BA]" . "Ostrava" . "P(GA103/09/1748), P(GP103/09/P490), S" . . . "Marek, Ivo" . "Zeman, Jan" . "199363" . "Fast Fourier Transform based Method for Modelling of Heterogeneous Materials"@en . "RIV/68407700:21110/11:00181243" . .