New analytical laws and applications of interaction potentials with a focus on van der Waals attraction - Publikacja - MOST Wiedzy

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New analytical laws and applications of interaction potentials with a focus on van der Waals attraction

Abstrakt

The paper aims to improve the efficiency of modeling interactions between slender deformable bodies that resemble the shape of fibers. Interaction potentials are modeled as inverse-power laws with respect to the point-pair distance, and the complete body-body potential is obtained by pairwise summation (integration). To speed-up integration, we consider the analytical preintegration of potentials between specific geometries such as disks, cylinders, rectangles, and rectangular prisms. Several exact new interaction laws are obtained, such as disk-infinite halfspace and (in-plane) rectangle-rectangle for an arbitrary exponent, and disk-disk and rectangle-rectangle for van der Waals attraction. To balance efficiency and accuracy, approximate laws are proposed for disk-disk, point-cylinder, and disk-cylinder interactions. Additionally, we have developed a novel formulation for the interaction between a spatial beam and an infinite halfspace. The application of the pre-integrated interaction potentials within the finite element method is illustrated via two examples.

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Informacje szczegółowe

Kategoria:
Publikacja w czasopiśmie
Typ:
artykuły w czasopismach
Opublikowano w:
APPLIED MATHEMATICAL MODELLING nr 145,
ISSN: 0307-904X
Język:
angielski
Rok wydania:
2025
Opis bibliograficzny:
Borković A., Gfrerer M., Sauer R.: New analytical laws and applications of interaction potentials with a focus on van der Waals attraction// APPLIED MATHEMATICAL MODELLING -, (2025), s.116100-
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1016/j.apm.2025.116100
Źródła finansowania:
  • Publikacja bezkosztowa
Weryfikacja:
Politechnika Gdańska

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