Results 21 to 30 of about 1,741 (182)

Simulation of Seismic Response of Reinforced Concrete Beam-Column Joints with Nurbs Surface Fitting

open access: yesArchives of Civil Engineering, 2017
This paper presents an approach based on NURBS (non-uniform rational B-splines) to achieve a seismic response surface (SRS) from a group of points obtained by using an analytical model of RC joints.
Mirhosseini R. Tabatabaei
doaj   +1 more source

Analysis of cross-ply laminated plates using isogeometric analysis and unified formulation

open access: yesCurved and Layered Structures, 2014
In this paper, we study the static bending and free vibration of cross-ply laminated composite plates using sinusoidal deformation theory. The plate kinematics is based on the recently proposed Carrera Unified Formulation (CUF), and the field variables ...
Natarajan S.   +2 more
doaj   +1 more source

L’epoca delle splines: geometrie e linee del progetto contemporaneo

open access: yesDisegnare con, 2012
L’iconografia dell’architettura e del design di ogni epoca si caratterizza per l’uso di linee e di forme geometriche che vengono rese realizzabili dall’evoluzione dei materiali e delle tecniche costruttive, nonché dall’introduzione di particolari ...
Enrico Cicalò   +3 more
doaj   +1 more source

Analysis of the Flow Field from Connection Cones to Monolith Reactors

open access: yesEnergies, 2019
The connection cones between an exhaust pipe and an exhaust after-treatment system (EATS) will affect the flow into the first monolith. In this study, a new streamlined connection cone using non-uniform rational B-splines (NURBS) is applied to optimize ...
Mingfei Mu   +3 more
doaj   +1 more source

Research on the S-shaped time-rounding series feedrate scheduling based on NURBS curve

open access: yesAdvances in Mechanical Engineering, 2022
The inconsistency between continuous feedrate scheduling and discrete interpolation of Non-Uniform Rational B-Splines (NURBS) curves as toolpath interpolation affects the interpolation accuracy and motion smoothness of computer numerical control (CNC ...
Jichun Wu   +3 more
doaj   +1 more source

Local and Global Approaches to Fracture Mechanics Using Isogeometric Analysis Method

open access: yesJournal of Applied and Computational Mechanics, 2015
In the present research, implementations of different computational geometry technologies in isogeometric analysis framework for computational fracture mechanics are investigated.
Abdolghafoor Khademalrasoul, Reza Naderi
doaj   +1 more source

Fitting Terrestrial Laser Scanner Point Clouds with T-Splines: Local Refinement Strategy for Rigid Body Motion

open access: yesRemote Sensing, 2021
T-splines have recently been introduced to represent objects of arbitrary shapes using a smaller number of control points than the conventional non-uniform rational B-splines (NURBS) or B-spline representatizons in computer-aided design, computer ...
Gaël Kermarrec   +2 more
doaj   +1 more source

NURBS-Based Isogeometric Analysis Method Application to Mixed-Mode Computational Fracture Mechanics [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2019
An interaction integral method for evaluating mixed-mode stress intensity factors (SIFs) for two dimensional crack problems using NURBS-based isogeometric analysis method is investigated. The interaction integral method is based on the path independent J-
Abdolghafour Khademalrasoul
doaj   +1 more source

Variational Formulations and Isogeometric Analysis of Timoshenko–Ehrenfest Microbeam Using a Reformulated Strain Gradient Elasticity Theory

open access: yesCrystals, 2022
This paper presents a novel non-classical Timoshenko–Ehrenfest beam model based on a reformulated strain gradient elasticity theory. The strain gradient effect, couple stress effect, and velocity gradient effect for vibration are included in the new ...
Shuohui Yin   +4 more
doaj   +1 more source

Polynomial cubic splines with tension properties

open access: yes, 2010
In this paper we present a new class of spline functions with tension properties. These splines are composed by polynomial cubic pieces and therefore are conformal to the standard, NURBS based CAD/CAM ...
MANNI C.   +13 more
core   +1 more source

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