Results 51 to 60 of about 3,671 (216)
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
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
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
Stabilised finite element methods for a bending moment formulation of the Reissner-Mindlin plate model [PDF]
This work presents new stabilised finite element methods for a bending moments formulation of the Reissner-Mindlin plate model. The introduction of the bending moment as an extra unknown leads to a new weak formulation, where the symmetry of this ...
Barrenechea, Gabriel R. +2 more
core +1 more source
ABSTRACT This study presents a novel approach utilizing cluster means to address the non‐differentiability issue arising from multiple eigenvalues in eigenfrequency and bandgap optimization. This study builds upon the method proposed by Zhang et al., extending it to eigenfrequency topology optimization using bound formulations.
Shiyao Sun, Kapil Khandelwal
wiley +1 more source
On a classical spectral optimization problem in linear elasticity
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 +18 more
core +1 more source
Locking-free discontinuous finite elements for the upper bound yield design of thick plates [PDF]
International audienceThis work investigates the formulation of finite elements dedicated to the upper bound kinematic approach of yield design or limit analysis of Reissner-Mindlin thick plates in shear-bending interaction.
Bleyer, Jérémy +2 more
core +4 more sources
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 ...
A. Sharma, S. Naskar, T. Mukhopadhyay
wiley +1 more source
Monitoring of Corrosion Damage by Using iFEM Methodology
ABSTRACT Marine environment is a harsh environment that can cause major issues for marine structures while operating in this environment, including fatigue cracking and corrosion damage, which can yield catastrophic consequences, such as human life losses, financial losses, environmental pollution, and so forth.
Yildirim Dirik +2 more
wiley +1 more source
Hierarchic finite elements for thin plates and shells
We consider the numerical approximation of thin plate and shell structures. The plate model is described following the Reissner-Mindlin assumptions while the shell is described using the Naghdi formulation.
Claudia Chinosi +2 more
doaj

