Archive ouverte HAL - Strain Gauges Based 3D Shape Monitoring of Beam Structures Using Finite Width Gauge Model

Strain Gauges Based 3D Shape Monitoring of Beam Structures Using Finite Width Gauge Model

Pierre-Loup Schaefer 1 Guilhaume Barrier 2 Grégory Chagnon 3 Thierry Alonso 3 Alexandre Moreau-Gaudry 1
1 TIMC-IMAG-GMCAO - Gestes Medico-chirurgicaux Assistés par Ordinateur
TIMC-IMAG - Techniques de l'Ingénierie Médicale et de la Complexité - Informatique, Mathématiques et Applications, Grenoble - UMR 5525
3 TIMC-IMAG-BioMMat - Ingénierie Biomédicale et Mécanique des Matériaux
TIMC-IMAG - Techniques de l'Ingénierie Médicale et de la Complexité - Informatique, Mathématiques et Applications, Grenoble - UMR 5525
Abstract : This paper presents a new approach validated experimentally to reconstruct with strain gauges the deformed shape of a straight beam with circular cross section. It is based on a novel beam-specific strain gauge model that improves the strain measurement by taking into account the width of the gauges. These improved strain measurements are used by a 3D finite strain large displacement beam shape reconstruction method to recover the deformed shape iteratively. The whole reconstruction approach has been validated experimentally with 3D deformations of a beam instru-mented with strain gauges. Results show that the strain gauge model developed improves reconstruction accuracy and that beam reconstruction can be achieved effectively .
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Contributeur : Grégory Chagnon <>
Soumis le : dimanche 17 février 2019 - 15:44:29
Dernière modification le : jeudi 21 mars 2019 - 14:56:10

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  • HAL Id : hal-02017091, version 1

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Pierre-Loup Schaefer, Guilhaume Barrier, Grégory Chagnon, Thierry Alonso, Alexandre Moreau-Gaudry. Strain Gauges Based 3D Shape Monitoring of Beam Structures Using Finite Width Gauge Model. Experimental Techniques, Society for Experimental Mechanics, 2019. ⟨hal-02017091⟩

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