Results 1 to 10 of about 3,568 (191)

The TDNNS method for Reissner-Mindlin plates. [PDF]

open access: yesNumer Math (Heidelb), 2017
A new family of locking-free finite elements for shear deformable Reissner-Mindlin plates is presented. The elements are based on the "tangential-displacement normal-normal-stress" formulation of elasticity. In this formulation, the bending moments are treated as separate unknowns.
Pechstein AS, Schöberl J.
europepmc   +8 more sources

Imperfection-Enabled Strengthening of Ultra-Lightweight Lattice Materials. [PDF]

open access: yesAdv Sci (Weinh)
This study identifies different compressive failure modes of cubic lattices with different relative densities and proposes a novel imperfection‐enabled strengthening mechanism of ultra‐lightweight lattice materials. Geometric imperfections are proven to be advantageous in enhancing the stability and strength of lattice materials at ultra‐low relative ...
Ding J   +9 more
europepmc   +2 more sources

Multi-Physically Programmable Tubular Origami Metamaterials: Exploitable Nexus of Geometry, Folding Mechanics and Stimuli-Responsive Physics. [PDF]

open access: yesAdv Sci (Weinh)
This article presents an insightful review on the exploitable nexus of geometry, folding mechanics and stimuli‐responsive physics for achieving active programmability in tubular origami metamaterials and metastructures, highlighting the broad‐spectrum potential in innovative applications across the length scales, along with critically analysing the ...
Sharma A, Naskar S, Mukhopadhyay T.
europepmc   +2 more sources

First-order VEM for Reissner–Mindlin plates [PDF]

open access: yesComputational Mechanics, 2021
AbstractIn this paper, a first-order virtual element method for Reissner–Mindlin plates is presented. A standard displacement-based variational formulation is employed, assuming transverse displacement and rotations as independent variables. In the framework of the first-order virtual element, a piecewise linear approximation is assumed for both ...
D’Altri, A. M.   +3 more
openaire   +2 more sources

A Finite Volume Formulation for the Elasto-Plastic Analysis of Rectangular Mindlin-Reissner Plates, a Non-Layered Approach [PDF]

open access: yesCivil Engineering Infrastructures Journal, 2017
This paper extends the previous work of authors and presents a non-layered Finite Volume formulation for the elasto-plastic analysis of Mindlin-Reissner plates. The incremental algorithm of the elasto-plastic solution procedure is shown in detail.
Nosratollah Fallah   +2 more
doaj   +1 more source

Free vibration analysis of functionally graded porous plate using 3-D degenerated shell element

open access: yesComposites Part C: Open Access, 2021
The free vibration analysis of porous functionally graded (FG) plates using 8-noded three-dimensional degenerated shell element has been presented in this paper.
Narayan Sharma   +3 more
doaj   +1 more source

Mixed‐interpolated elements for Reissner–Mindlin plates [PDF]

open access: yesInternational Journal for Numerical Methods in Engineering, 1989
AbstractWe present in this paper a procedure to establish Reissner–Mindlin plate bending elements. The procedure is based on the idea to combine known results on the approximation of Stokes problems with known results on the approximation of elliptic problems.
Brezzi, Franco   +2 more
openaire   +1 more source

A nonlinear elasto-plastic analysis of Reissner-Mindlin plates by finite element method

open access: yesFracture and Structural Integrity, 2019
In this paper, a finite element simulation of nonlinear elasto-plastic deformations of Reissner-Mindlin bending plates is described. The previously proposed four-node Q4g element with transverse energy of shearing for thick bending plates is extended to ...
Kamel Meftah, Lakhdar Sedira
doaj   +3 more sources

A 4-node quadrilateral element with center-point based discrete shear gap (CP-DSG4)

open access: yesVietnam Journal of Mechanics, 2021
This work aims at presenting a novel four-node quadrilateral element, which is enhanced by integrating with discrete shear gap (DSG), for analysis of Reissner-Mindlin plates. In contrast to previous studies that are mainly based on three-node triangular
Minh Nguyen   +3 more
doaj   +1 more source

High frequency modes meshfree analysis of Reissner–Mindlin plates

open access: yesJournal of Science: Advanced Materials and Devices, 2016
Finite element method (FEM) is well used for modeling plate structures. Meshfree methods, on the other hand, applied to the analysis of plate structures lag a little behind, but their great advantages and potential benefits of no meshing prompt continued
Tinh Quoc Bui   +4 more
doaj   +1 more source

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