Zobrazeno 1 - 10
of 154
pro vyhledávání: '"Mats G. Larson"'
Publikováno v:
Advanced Modeling and Simulation in Engineering Sciences, Vol 7, Iss 1, Pp 1-20 (2020)
Abstract We present and analyze a method for thin plates based on cut Bogner-Fox-Schmit elements, which are $$C^1$$ C 1 elements obtained by taking tensor products of Hermite splines. The formulation is based on Nitsche’s method for weak enforcemen
Externí odkaz:
https://doaj.org/article/ce2ff75ea92c44a4a9335d313fc1b85f
Publikováno v:
Advanced Modeling and Simulation in Engineering Sciences, Vol 5, Iss 1, Pp 1-19 (2018)
Abstract We consider a cut isogeometric method, where the boundary of the domain is allowed to cut through the background mesh in an arbitrary fashion for a second order elliptic model problem. In order to stabilize the method on the cut boundary we
Externí odkaz:
https://doaj.org/article/05fd852c6d2c4945b2d132e75ed4b496
Autor:
Frits de Prenter, Clemens V. Verhoosel, E. Harald van Brummelen, Mats G. Larson, Santiago Badia
This review paper discusses the developments in immersed or unfitted finite element methods over the past decade. The main focus is the analysis and the treatment of the adverse effects of small cut elements. We distinguish between adverse effects re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cf9a5ed11d3b785c1825bd8db1e2df0a
http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-209287
http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-209287
In this paper we will present a review of recent advances in the application of the augmented Lagrange multiplier method as a general approach for generating multiplier-free stabilised methods. The augmented Lagrangian method consists of a standard L
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aec10cb467a0c799da43a94e2873ded4
http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-204392
http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-204392
In the present work we show some results on the effect of the Smagorinsky model on the stability of the associated perturbation equation. We show that in the presence of a spectral gap, such that the flow can be decomposed in a large scale with moder
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::93b4dc2012b2201ee019146b6ae787da
http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-189933
http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-189933
We develop a method for solving elliptic partial differential equations on surfaces described by CAD patches that may have gaps/overlaps. The method is based on hybridization using a three-dimensional mesh that covers the gap/overlap between patches.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c99ce28fd763900977ccd8871e895bdc
Autor:
Peter Hansbo, Mats G. Larson
We use the augmented Lagrangian formalism to derive discontinuous Galerkin formulations for problems in nonlinear elasticity. In elasticity stress is typically a symmetric function of strain, leading to symmetric tangent stiffness matrices in Newtons
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7efe363d537c3568f0deeb67f6affd5b
Publikováno v:
Computer Methods in Applied Mechanics and Engineering. 403:115707
We develop a discrete extension operator for trimmed spline spaces consisting of piecewise polynomial functions of degree $p$ with $k$ continuous derivatives. The construction is based on polynomial extension from neighboring elements together with p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::25c0e28e6c3b8ef80f2351b2ce10c86b
https://doi.org/10.1016/j.cma.2022.115707
https://doi.org/10.1016/j.cma.2022.115707
Autor:
Peter Hansbo, Mats G. Larson
Publikováno v:
Computer Methods in Applied Mechanics and Engineering. 400:115549
In this paper we apply a nonconforming rotated bilinear tetrahedral element to the Stokes problem in $\mathbb{R}^3$. We show that the element is stable in combination with a piecewise linear, continuous, approximation of the pressure. This gives an a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a06a15096caad517762c55a9ae3d0c5e
https://doi.org/10.1016/j.cma.2022.115549
https://doi.org/10.1016/j.cma.2022.115549