Results 31 to 40 of about 17,342 (259)
Bisector and zero-macrospin co-rotational systems for shell elements [PDF]
, 2015 A principal issue in any co-rotational approach for large displacement analysis of plates and shells is associated with the specific choice of the local reference system in relation to the current deformed element configuration.
Acriniega +31 more
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Parameterization of Quadrilateral Meshes [PDF]
, 2007 Low-distortion parameterization of 3D meshes is a fundamental problem in computer graphics. Several widely used approaches have been presented for triangular meshes. But no direct parameterization techniques are available for quadrilateral meshes yet.
Li Liu, CaiMing Zhang, Frank Cheng
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Mesh smoothing algorithm based on exterior angles split.
PLoS ONE, 2020 Since meshes of poor quality give rise to low accuracy in finite element analysis and kinds of inconveniences in many other applications, mesh smoothing is widely used as an essential technique for the improvement of mesh quality.
Yongqing Hai +3 more
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Computing the Similarity Between Moving Curves [PDF]
, 2015 In this paper we study similarity measures for moving curves which can, for example, model changing coastlines or retreating glacier termini. Points on a moving curve have two parameters, namely the position along the curve as well as time.
A. Driemel +10 more
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An efficient spectral element method for two-dimensional magnetotelluric modeling
Frontiers in Earth Science, 2023 We introduce a new efficient spectral element approach to solve the two-dimensional magnetotelluric forward problem based on Gauss–Lobatto–Legendre polynomials.
Xiaozhong Tong +4 more
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T-Base: A Triangle-Based Iterative Algorithm for Smoothing Quadrilateral Meshes
, 2012 We present a novel approach named TBase for smoothing planar and surface quadrilateral meshes. Our motivation is that the best shape of quadrilateral element (square) can be virtually divided into a pair of equilateral right triangles by any of its ...
Mei, Gang +2 more
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Two New Quadrilateral Elements Based on Strain States [PDF]
Civil Engineering Infrastructures Journal, 2015 In this paper, two new quadrilateral elements are formulated to solve plane problems. Low sensitivity to geometric distortion, no parasitic shear error, rotational invariance, and satisfying the Felippa pure bending test are characteristics of these ...
Mohammad Rezaiee-Pajand, Majid Yaghoobi
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Algorithms, 2023 A neural-network-assisted numerical method is proposed for the solution of Laplace and Poisson problems. Finite differences are applied to approximate the spatial Laplacian operator on nonuniform grids.
Ferenc Izsák, Rudolf Izsák
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Optimal Angle Bounds for Quadrilateral Meshes [PDF]
Discrete & Computational Geometry, 2010 27 pages, 22 ...
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Adaptive triangular-quadrilateral mesh generation [PDF]
International Journal for Numerical Methods in Engineering, 1998 The authors propose an automatic triangular to quadrilateral mesh conversion adaption scheme and introduce a new optimal vertex smoothing procedure. Some numerical results, academic tests and a computational fluid dynamics example show the efficiency of the proposed method.
Borouchaki, Houman, Frey, Pascal J.
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