"21110" . . "Praha" . "978-80-01-04574-9" . "Proceedings of International Conference on Modelling and Simulation 2010 in Prague" . "Praha" . . . "Fast Fourier Transform based homogenization solved by iterative solvers"@en . "Fast Fourier Transform based homogenization solved by iterative solvers" . "2"^^ . "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." . . . "P(GA103/09/1748), P(GP103/09/P490), S" . . "\u010Cesk\u00E9 vysok\u00E9 u\u010Den\u00ED technick\u00E9 v Praze" . "2"^^ . "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 . "Vond\u0159ejc, Jaroslav" . . . . "Fast Fourier Transform based homogenization solved by iterative solvers" . "3"^^ . "RIV/68407700:21110/10:00169425" . "2010-06-22+02:00"^^ . . "numerical homogenization; FFT-based solvers; trigonometric collocation method; conjugate gradient solvers"@en . "RIV/68407700:21110/10:00169425!RIV11-GA0-21110___" . "[BF89515F9767]" . . . . "Fast Fourier Transform based homogenization solved by iterative solvers"@en . "Zeman, Jan" . . . . "258827" . . . . .