Results 61 to 70 of about 3,568 (191)

Damage Identification in Large‐Scale Structures Using Time Series Analysis and Improved Sparse Regularization

Advances in Civil Engineering, Volume 2025, Issue 1, 2025.
The academic community has paid much attention to the research topic of structural health monitoring (SHM) and damage identification for several decades, which flourishes the development of diverse damage identification approaches. The sensitivity‐based damage identification enjoys popularity due to its clear physical meaning and long development ...
Huihui Chen, Xiaojing Yuan, Duc-Duy Ho
wiley   +1 more source

Locking Free Quadrilateral Continuous/Discontinuous Finite Element Methods for the Reissner-Mindlin Plate

, 2013
We develop a finite element method with continuous displacements and discontinuous rotations for the Mindlin-Reissner plate model on quadrilateral elements.
Hansbo, Peter, Larson, Mats G.
core   +1 more source

An asymptotically optimal model for isotropic heterogeneous linearly elastic plates [PDF]

, 2004
In this paper, we derive and analyze a Reissner-Mindlin-like model for isotropic heterogeneous linearly elastic plates. The modeling procedure is based on a Hellinger-Reissner principle, which we modify to derive consistent models.
Auricchio, Ferdinando, Lovadina, Carlo, Madureira, Alexandre L.   +2 more
core   +1 more source

Curved Three‐Director Cosserat Shells with Strong Coupling

Computer Graphics Forum, Volume 43, Issue 8, December 2024.
Abstract Continuum‐based shell models are an established approach for the simulation of thin deformables in computer graphics. However, existing research in physically‐based animation is mostly focused on shear‐rigid Kirchhoff‐Love shells. In this work we explore three‐director Cosserat (micropolar) shells which introduce additional rotational degrees ...
F. Löschner, J. A. Fernández‐Fernández, S. R. Jeske, J. Bender   +3 more
wiley   +1 more source

Two-scale Reissner-Mindlin plate model

Rakenteiden Mekaniikka, 2017
A two-scale plate model, in which the displacement assumption consists of the Reissner-Mindlin and warping parts, is presented. To reduce the modelling error of the classical Reissner-Mindlin model, the warping part is chosen so that the overall displacement satisfies the full 3D elasticity equations as well as possible.
openaire   +4 more sources

Simultaneous analysis of continuously embedded Reissner–Mindlin shells in 3D bulk domains

International Journal for Numerical Methods in Engineering, Volume 125, Issue 16, 30 August 2024.
Abstract A mechanical model and numerical method for the simultaneous analysis of Reissner–Mindlin shells with geometries implied by a continuous set of level sets (isosurfaces) over some three‐dimensional bulk domain is presented. A three‐dimensional mesh in the bulk domain is used in a tailored FEM formulation where the elements are by no means ...
Michael Wolfgang Kaiser, Thomas‐Peter Fries   +1 more
wiley   +1 more source

On a classical spectral optimization problem in linear elasticity

, 2014
We consider a classical shape optimization problem for the eigenvalues of elliptic operators with homogeneous boundary conditions on domains in the $N$-dimensional Euclidean space.
B Kawohl, D Bucur, D Bucur, D Buoso, D Buoso, D Mazzoleni, E Oudet, G Buttazzo, J Serrin, K Deimling, LM Chasman, MS Ashbaugh, NS Nadirashvili, P Grinfeld, PD Lamberti, PD Lamberti, PD Lamberti, PD Lamberti, SA Wolf   +18 more
core   +1 more source

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, Alves de Sousa, Bathe, Batoz, Battini, Betsch, Crisfield, Crisfield, Eberlein, Eriksson, Hughes, Izzuddin, Izzuddin, Jiang, Kebari, Kim, Kim, Kim, Kim, Kim, Lee, Li, Li, Li, Li, Li, Norachan, Rankin, Rankin, Sze, Wisniewski, Zienkiewicz   +31 more
core   +1 more source

Two efficient hybrid-trefftz elements for plate bending analysis

Latin American Journal of Solids and Structures
This study is devoted to the analysis of the Reissner-Mindlin plate bending. In this paper, the hybrid-Trefftz strategy will be utilized. Two novel and efficient elements are formulated in details.
Mohammad Rezaiee-Pajand, Mohammad Karkon
doaj   +1 more source

A FE2 shell model with periodic boundary conditions for thin and thick shells

International Journal for Numerical Methods in Engineering, Volume 125, Issue 11, 15 June 2024.
Abstract In this article a FE2 shell model for thin and thick shells within a first order homogenization scheme is presented. A variational formulation for the two‐scale boundary value problem and the associated finite element formulation is developed. Constraints with 5 or 9 Lagrange parameters are derived which eliminate both rigid body movements and
Friedrich Gruttmann, Werner Wagner
wiley   +1 more source