2010
DOI: 10.1007/s00466-010-0472-6
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A meshless collocation method based on the differential reproducing kernel interpolation

Abstract: A differential reproducing kernel (DRK) interpolation-based collocation method is developed for solving partial differential equations governing a certain physical problem. The novelty of this method is that we construct a set of differential reproducing conditions to determine the shape functions of derivatives of the DRK interpolation function, without directly differentiating the DRK interpolation function. In addition, the shape function of the DRK interpolation function at each sampling node is separated … Show more

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Cited by 35 publications
(34 citation statements)
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“…With DC-PSE operators this is possible since the zeroth-order moment is a free parameter that can be used to tune the stability properties of the operators [39]. Setting the zeroth-order moment to zero and evaluating the operators at off-particle locations makes DC-PSE a particle-analog of derivative-reproducing kernel (DRK) Galerkin collocation methods [12,46,44], which are conceptually related to Moving Least-Squares (MLS) schemes [26,6].…”
Section: Approximation Of Derivatives and Particle-particle Interpolamentioning
confidence: 99%
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“…With DC-PSE operators this is possible since the zeroth-order moment is a free parameter that can be used to tune the stability properties of the operators [39]. Setting the zeroth-order moment to zero and evaluating the operators at off-particle locations makes DC-PSE a particle-analog of derivative-reproducing kernel (DRK) Galerkin collocation methods [12,46,44], which are conceptually related to Moving Least-Squares (MLS) schemes [26,6].…”
Section: Approximation Of Derivatives and Particle-particle Interpolamentioning
confidence: 99%
“…(A.2) for b T = p(0), which ensures that the approximation is consistent, as well as the Kronecker delta property ζ p (x q − x p ) = δ pq , which ensures that the approximation is interpolating. Like Wang et al [44], we takeφ to be the quartic spline with cutoff radius 1 and choose a p such that it is smaller than the distance between particle p and its nearest neighbor.…”
Section: Appendix a Interpolating Dc-pse Operatorsmentioning
confidence: 99%
“…A DRK approximation-based collocation method was developed for the quasi-three-dimensional (3D) analysis of multilayered piezoelectric plates and functionally graded magneto-electro-elastic shells by Wu et al [18,20,50]. The novelty of this DRK approximation is in the determination of the shape functions of derivatives of the RK approximation, and these are obtained using a set of differential reproducing conditions without directly differentiating the RK approximation, as is necessary in the conventional RK approximation.…”
Section: Introductionmentioning
confidence: 99%
“…This may cause difficulties and inconvenience when the essential boundary conditions are imposed in the implementation of these methods, especially when solving the weak formulation of physical problems. Wu et al [19], Wang et al [21] and Wu et al [51] thus developed the DRK interpolation and its related meshless collocation and element-free Galerkin methods, in which the shape function at each sampling node was separated into a primitive function possessing the Kronecker delta properties and an enrichment function constituting the reproducing conditions. Subsequently, the shape function of derivatives of the DRK interpolation function at each sampling node was determined by the combinations of the corresponding derivative of the primitive function and the higher-order enrichment function derived using a set of differential reproducing conditions.…”
Section: Introductionmentioning
confidence: 99%
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