NURBS-BASED ANALYSIS OF CURVED ELEMENTS FOR THIN-WALLED STRUCTURES

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ATRI H.R.; SHOJAEE S.

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Journal Paper

Paper Information

Journal: ASIAN JOURNAL OF CIVIL ENGINEERING (BUILDING AND HOUSING) Year:2015 | Volume:16 | Issue:3 Page(s): 451-470

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Information Journal Paper

Title

NURBS-BASED ANALYSIS OF CURVED ELEMENTS FOR THIN-WALLED STRUCTURES

Author(s)

ATRI H.R. | SHOJAEE S. | Issue Writer Certificate

Keywords

IGA

NURBS

ROTATION FREE

SOLID ELEMENT

SHELL

Abstract

In the present investIGAtion, static analysis of thin-walled SHELL-like structures based on isogeometric approach is presented. Since the higher order NURBS is well suited for describing the exact geometry and providing -continuity, so they are used as basis functions for bridging the gap between design and analysis. The IGA method has been shown that the properties of the NURBS basis functions lead in many cases to superior accuracy per degree of freedom with respect to finite element method. So several thin SHELL structures are investIGAted by two approaches of ROTATION FREE thin SHELL element based on Kirchhoff theory and three dimensional SOLID ELEMENT by using higher order NURBS basis functions throughk -refinement strategy. It is observed that, 3D SOLID ELEMENTs have no difficulties in dealing with curved edges and have good performance in modelling and analysis. For low order of NURBS basis functions, one can observe weak convergence rate, whereas for higher values of order of NURBS, the results are identical to those of SHELL element, which confirms that, only by applying the lengthwise of mesh refinement, the 3D SOLID ELEMENT can have acceptable performance.

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APA: Copy

ATRI, H.R., & SHOJAEE, S.. (2015). NURBS-BASED ANALYSIS OF CURVED ELEMENTS FOR THIN-WALLED STRUCTURES. ASIAN JOURNAL OF CIVIL ENGINEERING (BUILDING AND HOUSING), 16(3), 451-470. SID. https://sid.ir/paper/299111/en

Vancouver: Copy

ATRI H.R., SHOJAEE S.. NURBS-BASED ANALYSIS OF CURVED ELEMENTS FOR THIN-WALLED STRUCTURES. ASIAN JOURNAL OF CIVIL ENGINEERING (BUILDING AND HOUSING)[Internet]. 2015;16(3):451-470. Available from: https://sid.ir/paper/299111/en

IEEE: Copy

H.R. ATRI, and S. SHOJAEE, “NURBS-BASED ANALYSIS OF CURVED ELEMENTS FOR THIN-WALLED STRUCTURES,” ASIAN JOURNAL OF CIVIL ENGINEERING (BUILDING AND HOUSING), vol. 16, no. 3, pp. 451–470, 2015, [Online]. Available: https://sid.ir/paper/299111/en

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