Results 31 to 40 of about 23,034 (257)

Finite element method for solving nonlinear inverse diffusion problem

open access: yesپژوهش‌های ریاضی, 2021
In this paper, a numerical method based on the finite element method and the least square scheme with the Tikhonov regularization method for nonlinear inverse diffusion problem is presented.
Hamed Zeidabadi   +2 more
doaj  

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

The inverse deformation mapping in the finite element method

open access: yesPhilosophical Magazine, 2005
This paper aims at the exploitation of material forces to find an optimum mesh in the finite element method (FEM). The classical variational formulation provides the linear momentum equation in a Lagrangian description. A variational setting for the derivation of the canonical momentum equation in the Eulerian description is presented.
Kalpakides, V. K., Balassas, K. G.
openaire   +2 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

An inverse finite element method with an application to extrusion with solidification [PDF]

open access: yesInternational Journal for Numerical Methods in Fluids, 1989
AbstractThe flow and solidification of planar jets are analysed by means of an efficient inverse isotherm finite element method. The method is based on a tessellation that is constructed by isotherms as characteristic co‐ordinate lines transverse to the flow direction. Thus opposite sides of finite elements lie on isotherms.
Alexandrou, Andreas N.   +5 more
openaire   +3 more sources

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

A Finite Element Inverse Method for the Design of Turbomachinery Blades [PDF]

open access: yesVolume 1: Turbomachinery, 1991
We present a quasi-3D inverse method for the design of turbomachinery blades corresponding to a velocity distribution given arbitrarily. The theoretical aspect of the problem is first investigated, then the equations governing the quasi three-dimensional potential model are reviewed.
Didier Nicoud   +2 more
openaire   +1 more source

Identification of the Heat Transfer Coefficient at the Charge Surface Heated on the Chamber Furnace

open access: yesArchives of Metallurgy and Materials, 2017
The inverse method was applied to determine the heat flux reaching the charge surface. The inverse solution was based upon finding the minimum of the error norm between the measured and calculated temperatures. The charge temperature field was calculated
Gołdasz A., Malinowski Z.
doaj   +1 more source

Approximation Method for Stress–Strain Using Metamodel Parameter Updating

open access: yesApplied Sciences, 2022
The properties of the material applied to the finite element (FE) simulation can be expressed by constitutive models, and simple constitutive and complex constitutive models can be used to show the actual phenomenon.
Dong-Seok Shin   +2 more
doaj   +1 more source

Trefftz functions as basic functions of FEM in application to solution of inverse heat conduction problem

open access: yesComputer Assisted Methods in Engineering and Science, 2023
The work presents the application of heat polynomials for solving an inverse problem. The heat polynomials form the Trefftz Method for non-stationary heat conduction problem. They have been used as base functions in Finite Element Method. Application of
Michał J. Ciałkowski
doaj  

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