Results 41 to 50 of about 3,568 (191)
A DPG method for Reissner-Mindlin plates
We present a discontinuous Petrov-Galerkin (DPG) method with optimal test functions for the Reissner-Mindlin plate bending model. Our method is based on a variational formulation that utilizes a Helmholtz decomposition of the shear force. It produces approximations of the primitive variables and the bending moments.
Führer, Thomas +2 more
openaire +2 more sources
Rib‐Reinforced Ultralight and Ultra‐Strong Shell Lattices
This study thoroughly reveals the relation between the curvature and stress direction of triply periodic minimal surface (TPMS) thin shell lattices and proposes a novel rib reinforcement design strategy to incorporate ribs along the line of asymptotes (LOA) and the line of principal curvatures (LOC) to enhance the strength of ultralight TPMS shell ...
Winston Wai Shing Ma +6 more
wiley +1 more source
Homogenization of a space frame as a thick plate: Application of the Bending-Gradient theory to a beam lattice [PDF]
International audienceThe Bending-Gradient theory for thick plates is the extension to heterogeneous plates of Reissner-Mindlin theory originally designed for homogeneous plates.
Lebée, Arthur, Sab, Karam
core +2 more sources
Numerical results for mimetic discretization of Reissner-Mindlin plate problems [PDF]
A low-order mimetic finite difference (MFD) method for Reissner-Mindlin plate problems is considered. Together with the source problem, the free vibration and the buckling problems are investigated.
da Veiga, Lourenco Beirao +2 more
core +1 more source
On the stability of hybrid equilibrium and Trefftz finite element models for plate bending problems
This paper is concerned with hybrid stress elements in the context of modelling the behaviour of plates subject to out of plane loading and based on Reissner-Mindlin assumptions.
Edward A.W. Maunder
doaj
ABSTRACT FETI‐DP is a mature domain decomposition algorithm that has been successfully applied to different problems, demonstrating impressive performance. To be effective, the algorithm needs to be equipped with different technicalities that somewhat complicate its implementation.
José A. González +4 more
wiley +1 more source
Higher‐Order, Mixed‐Hybrid Finite Elements for Kirchhoff–Love Shells
ABSTRACT A novel mixed‐hybrid method for Kirchhoff–Love shells is proposed that enables the use of classical, possibly higher‐order Lagrange elements in numerical analyses. In contrast to purely displacement‐based formulations that require higher continuity of shape functions as in isogeometric analysis (IGA), the mixed formulation features ...
Jonas Neumeyer +2 more
wiley +1 more source
Three-dimensional flat shell-to-shell coupling: numerical challenges
The node-to-surface formulation is widely used in contact simulations with finite elements because it is relatively easy to implement using different types of element discretizations.
Guo Kuo, Haikal Ghadir
doaj +1 more source
Tension chord model for CFRP‐prestressed structural concrete
Abstract This paper introduces a mechanical model for steel‐reinforced concrete prestressed with bonded CFRP rods and presents the findings of an experimental campaign conducted to validate the model. The study is part of a project aiming at developing a railway bridge system in Switzerland that utilizes stainless steel reinforcing bars combined with ...
Andreas Näsbom +3 more
wiley +1 more source
A numerical approach for modelling thin cracked plates with XFEM [PDF]
The modelization of bending plates with through the thickness cracks is investigated. We consider the Kirchhoff-Love plate model which is valid for very thin plates.
C. Besse +6 more
core +4 more sources

