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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Structural Engineering and Mechanics, An Int'l Journal Structural Engineering and Mechanics, An Int'l Journal Vol.76 No.3
- 발행연도
- 2020.1
- 수록면
- 379 - 393 (15page)
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초록· 키워드
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In this paper, we propose an automatic procedure to improve the accuracy of finite element solutions using enriched 2D solid finite elements (4-node quadrilateral and 3-node triangular elements). The enriched elements can improve solution accuracy without mesh refinement by adding cover functions to the displacement interpolation of the standard elements. The enrichment scheme is more effective when used adaptively for areas with insufficient accuracy rather than the entire model. For given meshes, an error for each node is estimated, and then proper degrees of cover functions are applied to the selected nodes. A new error estimation method and cover function selection scheme are devised for the proposed adaptive enrichment scheme. Herein, we demonstrate the proposed enrichment scheme through several 2D problems.
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참고문헌 (31)
참고문헌 신청
An, X. M. / 2011 / Prediction of rank deficiency in partition of unity-based methods with plane triangular or quadrilateral meshes / Comput. Methods. Appl. Mech. Eng. 200(5-8):665~674
An, X. M. / 2012 / Investigation of linear dependence problem of threedimensional partition of unity-based finite element methods / Comput. Methods. Appl. Mech. Eng 233:137~151
Babuska, I. / 1996 / The Partition of Unity Method / Int. J. Numer. Methods Eng 40:727~758
Babuska, I. / 2012 / Stable generalized finite element method(SGFEM) / Comput. Methods Appl. Mech. Eng 201:91~111
Bathe, K. J. / 1996 / Finite Element Procedures / Prentice Hall
An, X. M. / 2012 / Investigation of linear dependence problem of threedimensional partition of unity-based finite element methods / Comput. Methods. Appl. Mech. Eng 233:137~151
Babuska, I. / 1996 / The Partition of Unity Method / Int. J. Numer. Methods Eng 40:727~758
Babuska, I. / 2012 / Stable generalized finite element method(SGFEM) / Comput. Methods Appl. Mech. Eng 201:91~111
Bathe, K. J. / 1996 / Finite Element Procedures / Prentice Hall
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