Results 91 to 100 of about 25,253,049 (241)

Isogeometric shape sensitivity analysis [PDF]

open access: yesWIT Transactions on The Built Environment, 2012
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

Automatic Adaptive and Targeted Localized Refinement in Transient Structural Dynamic Simulations Using the Multiresolution Finite Wavelet Domain Method

open access: yesInternational Journal for Numerical Methods in Engineering, Volume 127, Issue 1, 15 January 2026.
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

open access: yesActa Polytechnica CTU Proceedings, 2018
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

open access: yesAdvanced Materials Technologies, Volume 11, Issue 1, 8 January 2026.
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]

open access: yes, 2013
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

open access: yes, 2019
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]

open access: yes, 2017
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

open access: yesProceedings in Applied Mathematics and Mechanics, Volume 25, Issue 4, December 2025.
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

open access: yesAdvanced Modeling and Simulation in Engineering Sciences, 2018
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

open access: yesStructural Concrete, Volume 26, Issue 6, Page 8419-8436, December 2025.
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

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