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N-E. Wiberg, F. Abdulwahab, "Error Estimation with Post Processed FE-Solutions", in M. Papadrakakis, B.H.V. Topping, (Editors), "Advances in Post and Preprocessing for Finite Element Technology", Civil-Comp Press, Edinburgh, UK, pp 1-22, 1994. doi:10.4203/ccp.21.1.1

Abstract

The Superconvergent Patch Recovery (SPR) technique and its enhancements has shown to be an accurate and efficient method to obtain an improved solution. It gives a more accurate solution, used as such, and it can be utilized for an error estimation of the finite element solution. The improved solution has often at least one order higher convergence rate and is much more accurate than the finite element solution. The paper gives a review of different aspects and enhancements of SPR-technique and proposes an additional global iteration procedure, which gives a still higher accuracy. These changes make it possible to give an error estimation of the improved solution. The different error estimations are used in an adaptive process, showing that improved error estimation gives improved adaptivity performance.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 21 ADVANCES IN POST AND PREPROCESSING FOR FINITE ELEMENT TECHNOLOGY Edited by: M. Papadrakakis and B.H.V. Topping Paper I.1 Error Estimation with Post Processed FE-Solutions N-E. Wiberg and F. Abdulwahab Department of Structural Mechanics, Chalmers University of Technology, Goteborg, Sweden doi:10.4203/ccp.21.1.1 purchase the full-text of this paper Full Bibliographic Reference for this paper N-E. Wiberg, F. Abdulwahab, "Error Estimation with Post Processed FE-Solutions", in M. Papadrakakis, B.H.V. Topping, (Editors), "Advances in Post and Preprocessing for Finite Element Technology", Civil-Comp Press, Edinburgh, UK, pp 1-22, 1994. doi:10.4203/ccp.21.1.1 Abstract The Superconvergent Patch Recovery (SPR) technique and its enhancements has shown to be an accurate and efficient method to obtain an improved solution. It gives a more accurate solution, used as such, and it can be utilized for an error estimation of the finite element solution. The improved solution has often at least one order higher convergence rate and is much more accurate than the finite element solution. The paper gives a review of different aspects and enhancements of SPR-technique and proposes an additional global iteration procedure, which gives a still higher accuracy. These changes make it possible to give an error estimation of the improved solution. The different error estimations are used in an adaptive process, showing that improved error estimation gives improved adaptivity performance. purchase the full-text of this paper (price £20) go to the next paper return to the table of contents return to the book description purchase this book (price £60 +P&P)
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