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俄罗斯空气动力研究所中心学报

ISSN 打印: 1948-2590
ISSN 在线: 1948-2604

俄罗斯空气动力研究所中心学报

DOI: 10.1615/TsAGISciJ.v40.i5.90
pages 631-640

COMPOUND TRIANGULAR FINITE ELEMENT WITH CUBIC POLYNOMIAL FOR LATERAL PLATE BENDING

Julian Fedotovich Yaremchuk
TUPOLEV, Academician Tupolev Embankment 17, Moscow, 105005, Russian Federation

ABSTRACT

On the basis of a triangular compound-element of Clough-Tocher (CTE), the finite element with C1 smoothness1 (hereinafter ENP) was created, which geometrically coincides with the CTE but shows a nonlinear dependence in the normal derivative on the boundaries between the adjacent elements. In a specific case of linear dependence of the normal derivative along the boundaries, ENP and CTE are the same. The examples of a simply supported and clamped plate along the whole contour shows a noticeable improvement of the calculation is observed.


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