Results 11 to 20 of about 616,807 (289)

General finite-element framework of the Virtual Fields Method in Nonlinear Elasticity [PDF]

open access: yesJournal of Elasticity, 2021
AbstractThis paper presents a method to derive the virtual fields for identifying constitutive model parameters using the Virtual Fields Method (VFM). The VFM is an approach to identify unknown constitutive parameters using deformation fields measured across a given volume of interest.
Yue Mei   +5 more
openaire   +4 more sources

Factorisation and Subtraction beyond NLO [PDF]

open access: yes, 2018
We provide a general method to construct local infrared subtraction counterterms for unresolved radiative contributions to differential cross sections, to any order in perturbation theory.
Magnea, Lorenzo   +5 more
core   +2 more sources

3D Strain and Elasticity Measurement of Layered Biomaterials by Optical Coherence Elastography based on Digital Volume Correlation and Virtual Fields Method

open access: yesApplied Sciences, 2019
The three-dimensional (3D) mechanical property characterization of biological tissues is essential for physiological and pathological studies. A digital volume correlation (DVC) and virtual fields method (VFM) based 3D optical coherence elastography (OCE)
Fanchao Meng   +5 more
doaj   +1 more source

Virtual reality scene modeling in the context of Internet of Things

open access: yesAlexandria Engineering Journal, 2022
The Internet and the Internet of Things (IoT) connect the world inside and outside the network through online and offline communication, which forms the original single network virtual platform.
Chufeng Huang, Wen Zhang, Liang Xue
doaj   +1 more source

Identification of plastic stress-strain parameters by global digital image correlation, the virtual fields method and the total strain theory

open access: yesMechanical Engineering Journal, 2016
A procedure for identifying plastic constitutive parameters from measured displacement fields based on virtual fields is proposed in this paper. The displacement fields of the specimen surface are obtained through measurements using global digital image ...
Shun HAMADA   +3 more
doaj   +1 more source

Optimized Polynomial Virtual Fields Method for Constitutive Parameters Identification of Orthotropic Bimaterials

open access: yesAdvances in Materials Science and Engineering, 2020
Heterogeneous materials are widely applied in many fields. Owing to the spatial variation of its constitutive parameters, the mechanical characterization of heterogeneous materials is very important.
Xueyi Ma, Yu Wang, Jian Zhao
doaj   +1 more source

Simultaneous occurrence of sliding and crossing limit cycles in piecewise linear planar vector fields [PDF]

open access: yes, 2019
In the present study we consider planar piecewise linear vector fields with two zones separated by the straight line $x=0$. Our goal is to study the existence of simultaneous crossing and sliding limit cycles for such a class of vector fields.
Cardoso, Joao L.   +3 more
core   +2 more sources

Elastic constants characterization on graphite at 500°C by the virtual fields method

open access: yesTheoretical and Applied Mechanics Letters, 2014
In this paper the elastic constants of graphite at elevated temperature were experimentally investigated by using the virtual fields method (VFM). A new method was presented for the characterization of mechanical properties at elevated temperature.
Baoqiao Guo   +3 more
doaj   +1 more source

Identification of materials properties using displacement field measurement [PDF]

open access: yes, 2011
The aim of this work is to identify parameters driving constitutive equations of materials with displacement field measurements carried out by image stereo-correlation during an unidirectional tensile test. We evaluate two identification techniques.
Dalverny, Olivier   +2 more
core   +2 more sources

3D Viewpoint Estimation Based on Aesthetics

open access: yesIEEE Access, 2020
Research on viewpoint in 3D scenes has been a cutting-edge subject in computer vision and 3D scene understanding. Calculating a high quality 3D viewpoint in virtual scenes is conducive to a more comprehensive analysis of 3D graphic structure, which can ...
Yan Zhang, Guangzheng Fei, Gang Yang
doaj   +1 more source

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