Results 61 to 70 of about 3,671 (216)

A Gradient Stable Node-Based Smoothed Discrete Shear Gap Method for Analysis of Reissner–Mindlin Plates

open access: yesShock and Vibration, 2020
In this paper, a gradient stable node-based smoothed discrete shear gap method (GS-DSG) using 3-node triangular elements is presented for Reissner–Mindlin plates in elastic-static, free vibration, and buckling analyses fields.
Yadong Xu, Guangsong Chen, Jinsong Tang
doaj   +1 more source

A new design model for anchorages with flexible elastic base plate for concrete breakout failure under tension loads

open access: yesStructural Concrete, Volume 26, Issue 4, Page 4365-4388, August 2025.
Abstract The current codes and standards for the design of anchorages against concrete cone breakout failure require the base plate to be rigid such that each anchor is subjected to almost equal load under concentric tension, and there is a linear distribution of anchor forces for groups under eccentric tension or bending.
Akanshu Sharma, Rolf Eligehausen
wiley   +1 more source

Polyharmonic Multiquadric Particular Solutions for Reissner/Mindlin Plate [PDF]

open access: yesMathematical Problems in Engineering, 2015
Analytical particular solutions of the polyharmonic multiquadrics are derived for both the Reissner and Mindlin thick-plate models in a unified formulation. In the derivation, the three coupled second-order partial differential equations are converted into a product operator of biharmonic and Helmholtz operators using the Hörmander operator ...
openaire   +1 more source

Formulation of an isogeometric shell element for crash simulation [PDF]

open access: yes, 2013
In this paper, we propose, for the isogeometric analysis, a shell model based on a degenerated three dimensional approach. It uses a first order kinematic description in the thickness with transverse shear (Reissner-Mindlin theory).
Adam, Cédric   +3 more
core  

Nonintrusive coupling of 3D and 2D laminated composite models based on finite element 3D recovery

open access: yes, 2014
In order to simulate the mechanical behavior of large structures assembled from thin composite panels, we propose a coupling technique which substitutes local 3D models for the global plate model in the critical zones where plate modeling is inadequate ...
Allix, Olivier   +3 more
core   +2 more sources

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

open access: yesAdvances 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

Shape differentiability of the eigenvalues of elliptic systems

open access: yes, 2014
We consider second order elliptic systems of partial differential equations subject to Dirichlet and Neumann boundary conditions. We prove analyticity of the elementary symmetric functions of the eigenvalues, and compute Hadamard-type formulas for such ...
Buoso, Davide
core   +1 more source

On stress resultant plasticity and viscoplasticity for metal plates [PDF]

open access: yes, 2008
In this work we derive elastoplastic and elastoviscoplastic finite element formulations for stress resultant bending analysis of thin metal plates. The principle of maximum plastic dissipation is used to obtain the ingredients of the small strain stress ...
Brank, Boštjan, Dujc, Jaka
core   +1 more source

Simultaneous solution of implicitly defined curved, linear Timoshenko beams in two‐dimensional bulk domains

open access: yesProceedings in Applied Mathematics and Mechanics, Volume 24, Issue 4, December 2024.
Abstract A novel formulation of curved Timoshenko beams which are defined by all level sets of a scalar function in a two‐dimensional bulk domain is presented, including a corresponding finite element method for the simultaneous solution of these beams. The required geometrical setup and differential operators are introduced and the model is defined in
Michael Wolfgang Kaiser   +1 more
wiley   +1 more source

A DPG method for Reissner-Mindlin plates

open access: yes, 2022
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

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