The Experts below are selected from a list of 5937 Experts worldwide ranked by ideXlab platform
Leone Corradi - One of the best experts on this subject based on the ideXlab platform.
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a mixed finite Element model for plane strain elastic plastic analysis part ii application to the 4 node Bilinear Element
Computer Methods in Applied Mechanics and Engineering, 1997Co-Authors: Antonio Capsoni, Leone CorradiAbstract:In this paper, the results of part I of this study are applied to the 4-node Bilinear Element. The trial functions for different fields are defined consistently with the a-priori conditions established, the rate problem is generalized to cover finite loading steps and the solution strategy is presented. Computations referred to some discriminating examples from the literature demonstrate that the proposed model is actually capable of predicting the perfectly plastic collapse load for pathological plane strain problems, exhibits excellent performances with coarse meshes and is rather insensitive to mesh distortion.
Yanmin Zhao - One of the best experts on this subject based on the ideXlab platform.
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superconvergence analysis of an h1 galerkin mixed finite Element method for two dimensional multi term time fractional diffusion equations
International Journal of Computer Mathematics, 2018Co-Authors: Zhengguang Shi, Yifa Tang, Yanmin Zhao, Fenling Wang, Yanhua ShiAbstract:In this paper, numerical approximation for two-dimensional (2D) multi-term time fractional diffusion equation is considered. By virtue of properties of Bilinear Element, Raviart–Thomas Element and ...
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convergence and superconvergence of a fully discrete scheme for multi term time fractional diffusion equations
Science & Engineering Faculty, 2016Co-Authors: Yanmin Zhao, Yifa Tang, Yadong Zhang, Fawang Liu, Ian Turner, Vo AnhAbstract:Using finite Element method in spatial direction and classical L1L1 approximation in temporal direction, a fully-discrete scheme is established for a class of two-dimensional multi-term time fractional diffusion equations with Caputo fractional derivatives. The stability analysis of the approximate scheme is proposed. The spatial global superconvergence and temporal convergence of order O(h2+τ2−α)O(h2+τ2−α) for the original variable in H1H1-norm is presented by means of properties of Bilinear Element and interpolation postprocessing technique, where hh and ττ are the step sizes in space and time, respectively. Finally, several numerical examples are implemented to evaluate the efficiency of the theoretical results.
Yanhua Shi - One of the best experts on this subject based on the ideXlab platform.
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superconvergence analysis of an h1 galerkin mixed finite Element method for two dimensional multi term time fractional diffusion equations
International Journal of Computer Mathematics, 2018Co-Authors: Zhengguang Shi, Yifa Tang, Yanmin Zhao, Fenling Wang, Yanhua ShiAbstract:In this paper, numerical approximation for two-dimensional (2D) multi-term time fractional diffusion equation is considered. By virtue of properties of Bilinear Element, Raviart–Thomas Element and ...
Yifa Tang - One of the best experts on this subject based on the ideXlab platform.
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superconvergence analysis of an h1 galerkin mixed finite Element method for two dimensional multi term time fractional diffusion equations
International Journal of Computer Mathematics, 2018Co-Authors: Zhengguang Shi, Yifa Tang, Yanmin Zhao, Fenling Wang, Yanhua ShiAbstract:In this paper, numerical approximation for two-dimensional (2D) multi-term time fractional diffusion equation is considered. By virtue of properties of Bilinear Element, Raviart–Thomas Element and ...
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convergence and superconvergence of a fully discrete scheme for multi term time fractional diffusion equations
Science & Engineering Faculty, 2016Co-Authors: Yanmin Zhao, Yifa Tang, Yadong Zhang, Fawang Liu, Ian Turner, Vo AnhAbstract:Using finite Element method in spatial direction and classical L1L1 approximation in temporal direction, a fully-discrete scheme is established for a class of two-dimensional multi-term time fractional diffusion equations with Caputo fractional derivatives. The stability analysis of the approximate scheme is proposed. The spatial global superconvergence and temporal convergence of order O(h2+τ2−α)O(h2+τ2−α) for the original variable in H1H1-norm is presented by means of properties of Bilinear Element and interpolation postprocessing technique, where hh and ττ are the step sizes in space and time, respectively. Finally, several numerical examples are implemented to evaluate the efficiency of the theoretical results.
Antonio Capsoni - One of the best experts on this subject based on the ideXlab platform.
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a mixed finite Element model for plane strain elastic plastic analysis part ii application to the 4 node Bilinear Element
Computer Methods in Applied Mechanics and Engineering, 1997Co-Authors: Antonio Capsoni, Leone CorradiAbstract:In this paper, the results of part I of this study are applied to the 4-node Bilinear Element. The trial functions for different fields are defined consistently with the a-priori conditions established, the rate problem is generalized to cover finite loading steps and the solution strategy is presented. Computations referred to some discriminating examples from the literature demonstrate that the proposed model is actually capable of predicting the perfectly plastic collapse load for pathological plane strain problems, exhibits excellent performances with coarse meshes and is rather insensitive to mesh distortion.