Results 21 to 30 of about 401,588 (285)

Two-Step Calibration Method for Inverse Finite Element with Small Sample Features

open access: yesSensors, 2020
When the inverse finite element method (inverse FEM) is used to reconstruct the deformation field of a multi-element structure with strain measurements, strain measurement errors can lower the reconstruction accuracy of the deformation field. Furthermore,
Libo Xu   +3 more
doaj   +1 more source

Global superconvergence of finite element methods for parabolic inverse problems [PDF]

open access: yesApplications of Mathematics, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Azari, Hossein, Zhang, Shuhua
openaire   +1 more source

Coarse and Fine Two-Stage Calibration Method for Enhancing the Accuracy of Inverse Finite Element Method

open access: yesSensors, 2023
The inverse finite element method (iFEM) is a novel method for reconstructing the full-field displacement of structures by discrete measurement strain. In practical engineering applications, the accuracy of iFEM is reduced due to the positional offset of
Jiewei Lu   +3 more
doaj   +1 more source

Conforming and nonconforming finite element methods for biharmonic inverse source problem [PDF]

open access: yesInverse Problems, 2021
Abstract This paper deals with the numerical approximation of the biharmonic inverse source problem in an abstract setting in which the measurement data is finite-dimensional. This unified framework in particular covers the conforming and nonconforming finite element methods (FEMs).
M Thamban Nair, Devika Shylaja
openaire   +3 more sources

An efficient direct solver for a class of mixed finite element problems [PDF]

open access: yes, 2001
In this paper we present an efficient, accurate and parallelizable direct method for the solution of the (indefinite) linear algebraic systems that arise in the solution of fourth-order partial differential equations (PDEs) using mixed finite element ...
Anderson   +39 more
core   +1 more source

Inverse finite element method for large‐displacement beams

open access: yesInternational Journal for Numerical Methods in Engineering, 2010
AbstractA finite element model for the inverse analysis of large‐displacement beams in the elastic range is presented. The model permits determining the initial shape of a beam such that it attains the given design shape under the effect of service loads.
Albanesi, Alejandro Eduardo   +2 more
openaire   +3 more sources

A Refined Shape Sensing Method for Skin Antenna Structure Based on Inverse Finite Element Method

open access: yesApplied Sciences, 2020
An important issue in the existing inverse finite element method (iFEM) is that reconstruction accuracy cannot satisfy the analytical demand for the flexible structure.
Shengtao Niu   +3 more
doaj   +1 more source

Application of Bilinear Softening Laws and Fracture Toughness of Foamed Concrete

open access: yesConstruction Materials, 2023
This study examined the fracture and failed performance of foamed concrete materials by testing normalized notched beams under three-point bending via three methods: inverse analysis, digital image correlation (DIC), and finite element modeling (FEM). It
Malik Ridwan Maulana   +2 more
doaj   +1 more source

FULL-VECTORIAL PARALLEL FINITE-ELEMENT CONTRAST SOURCE INVERSION METHOD [PDF]

open access: yesProgress In Electromagnetics Research, 2013
The multiplicatively regularized flnite-element contrast source inversion algorithm (MR-FEM-CSI) is used to solve the full- vectorial three-dimensional (3D) inverse scattering problem. The contrast and contrast-source optimization variables are located at the centroids of tetrahedra within the problem domain; whereas the electric fleld is expanded in ...
Amer Zakaria, Ian Jeffrey, Joe LoVetri
openaire   +1 more source

The elastic-plastic properties of an anti-icing coating on an aluminum alloy: Experimental and numerical approach

open access: yesJournal of the Mechanical Behavior of Materials, 2021
In this paper, an attempt is made to describe the method that combines the results obtained from nanoindentation experiment with finite element simulation to determine or establish the elastic-plastic properties of a super-hydrophobic anti-icing coating.
Zhang Wei   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy