Results 11 to 20 of about 65,081 (255)

The virtual fields method applied to spalling tests on concrete [PDF]

open access: yesEPJ Web of Conferences, 2012
For one decade spalling techniques based on the use of a metallic Hopkinson bar put in contact with a concrete sample have been widely employed to characterize the dynamic tensile strength of concrete at strain-rates ranging from a few tens to two ...
Forquin P., Pierron F.
doaj   +2 more sources

The Virtual Fields Method for Extracting Constitutive Parameters From Full‐Field Measurements: a Review [PDF]

open access: yesStrain, 2006
ABSTRACT:The virtual fields method has been developed for extracting constitutive parameters from full‐field measurements provided by optical non‐contact techniques for instance. It is based on the principle of virtual work written with some particular virtual fields.
Michel Grédiac   +2 more
exaly   +3 more sources

Application of the Virtual Fields Method to a relaxation behaviour of rubbers [PDF]

open access: yesJournal of the Mechanics and Physics of Solids, 2018
Abstract This paper presents the application of the Virtual Fields Method (VFM) for the characterization of viscoelastic behaviour of rubbers. The relaxation behaviour of the rubbers following a dynamic loading event is characterized using the dynamic VFM in which full-field (two dimensional) strain and acceleration data, obtained from high-speed ...
Clive Siviour
exaly   +3 more sources

Viscoelastic material properties’ identification using high speed full field measurements on vibrating plates [PDF]

open access: yesEPJ Web of Conferences, 2010
The paper presents an experimental application of a method leading to the identification of the elastic and damping material properties of isotropic vibrating plates.
Pierron F., Giraudeau A.
doaj   +2 more sources

Identification of the plastic zone using digital image correlation [PDF]

open access: yesFracture and Structural Integrity, 2014
In this paper Digital Image Correlation (DIC) is used to study the evolution of the plastic zone close to a crack tip. A modified CT-specimen was used in order to fulfill the plane stress condition.
M. Rossi   +4 more
doaj   +2 more sources

Virtual Human: A Comprehensive Survey on Academic and Applications

open access: yesIEEE Access, 2023
As a creative method for virtual human individuals based on multiple fusion technologies such as artificial intelligence, computer graphics, and speech synthesis, virtual human technology has developed rapidly since its birth, and continuous discussions ...
Lipeng Cui, Jiarui Liu
doaj   +1 more source

A New Method for Spatial Estimation of Water Quality Using an Optimal Virtual Sensor Network and In Situ Observations: A Case Study of Chemical Oxygen Demand

open access: yesSensors, 2023
Accurate water quality estimation is important for water environment monitoring and water resource management and has emerged as a pivotal aspect of ecological rehabilitation and sustainable development.
Na Zhao
doaj   +1 more source

Virtual Electric Dipole Field Applied to Autonomous Formation Flight Control of Unmanned Aerial Vehicles

open access: yesSensors, 2021
The following paper presents a method for the use of a virtual electric dipole potential field to control a leader-follower formation of autonomous Unmanned Aerial Vehicles (UAVs).
Leszek Ambroziak, Maciej Ciężkowski
doaj   +1 more source

The Laplace Virtual Fields Method for the direct extraction of viscoelastic properties of materials

open access: yesComptes Rendus. Mécanique, 2023
This work proposes a new method aiming at the direct identification of viscoelastic properties of materials with a Laplace formalism implemented in the Virtual Fields Method and named L-VFM.
Marcot, Quentin   +3 more
doaj   +1 more source

Full-Field Surface Pressure Reconstruction Using the Virtual Fields Method [PDF]

open access: yesExperimental Mechanics, 2019
This work presents a methodology for reconstructing full-field surface pressure information from deflectometry measurements on a thin plate using the Virtual Fields Method (VFM). Low-amplitude mean pressure distributions of the order of few
R. Kaufmann   +2 more
openaire   +3 more sources

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