Results 91 to 100 of about 25,253,049 (241)
Isogeometric shape sensitivity analysis [PDF]
On a regular basis, engineering analysis requires stating and solving systems of partial differential equations (PDEs). The most powerful and widely extended techniques for solving PDEs are the so-called Weighted Residuals Methods. To this group belong, among others, the Finite Element Method (FEM), the Boundary Element Method (BEM), the Finite Volume ...
F. Navarrina +5 more
openaire +1 more source
ABSTRACT The multiresolution finite wavelet domain method has been meticulously studied in numerous wave propagation simulations, showing excellent convergence properties and very fast computing times. The multiresolution procedure always starts with the coarse solution, and then finer solutions can be superimposed on the coarse solution until ...
Dimitris Dimitriou +2 more
wiley +1 more source
ISOGEOMETRIC BEAM ELEMENT EXTENDED FOR GRIDSHELL ANALYSIS
The design of gridshell structures is a complicated process, as the resulting shape of structure depends on initial undeformed grid geometry as well as on the history of boundary conditions used to form the final structure.
Edita Dvořáková, Bořek Patzák
doaj +1 more source
Rotary 4D Printing of Programmable Metamaterials on Sustainable 4D Mandrel
The paper introduces open, rotary 4D printing of programmable tubular metamaterials. It presents an open, non‐planar path‐to‐G‐code pipeline and shape‐changing rotary mandrel that enable support‐free fabrication and multi‐stimuli actuation. Experiments and FEA validate the mentioned features and stress redistribution.
Hesam Soleimanzadeh +4 more
wiley +1 more source
Automation of isogeometric formulation and efficiency consideration [PDF]
This paper deals with automation of the isogeometric finite element formulation. Isogeometric finite element is implemented in AceGen environment, which enables symbolic formulation of the element code and the expressions are automatically ...
Korelc, Joze, Solinc, Ursa
core
Adaptive isogeometric boundary element methods with local smoothness control
In the frame of isogeometric analysis, we consider a Galerkin boundary element discretization of the hyper-singular integral equation associated with the 2D Laplacian.
Gantner, Gregor +2 more
core +2 more sources
Generalized B-Splines in Isogeometric Analysis [PDF]
In this paper, we survey the use of generalized B-splines in isogeometric Galerkin and collocation methods. Generalized B-splines are a special class of Tchebycheffian B-splines and form an attractive alternative to standard polynomial B-splines and NURBS in both modeling and simulation.
Manni C., Roman F., Speleers H.
openaire +2 more sources
Material Identification of Heterogeneous Isogeometric Bernoulli–Euler Beams With Pretensioning
ABSTRACT This study employs the Finite Element Model Updating (FEMU) method for identification of material parameters and pretensioning forces in heterogeneous planar Bernoulli–Euler beams, which are analyzed using isogeometric analysis. The unknown material fields are discretized with a separate mesh based on Lagrange interpolation, referred to as the
Bartłomiej Łazorczyk, Roger A. Sauer
wiley +1 more source
Realization of CAD-integrated shell simulation based on isogeometric B-Rep analysis
An entire design-through-analysis workflow solution for isogeometric B-Rep analysis (IBRA), including both the interface to existing CADs and the analysis procedure, is presented.
T. Teschemacher +6 more
doaj +1 more source
Physical structural assessment of a segmented concrete shell building floor prototype
Abstract To reduce the significant environmental impact of the construction industry, building floors designed as concrete shells that work mainly in compression and that are segmented for prefabrication and disassembly offer a promising alternative to reinforced thick flat slabs.
Robin Oval +4 more
wiley +1 more source

