Identification of the Through-Thickness Orthotropic Stiffness of Composite Tubes from Full-Field Measurements

Raphaël Moulart; Stephane Avril; Fabrice Pierron

doi:10.4028/www.scientific.net/AMM.3-4.161

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 3-4Identification of the Through-Thickness...

Identification of the Through-Thickness Orthotropic Stiffness of Composite Tubes from Full-Field Measurements

Abstract:

This paper deals with the simultaneous identification of the four through-thickness orthotropic rigidities of a thick composite tube. A diametral compression test has been carried out on a glass/epoxy ring cut from the tube. The full strain field has been measured over one face of the sample with the grid method. The measured fields have been processed with the Virtual Fields Method to identify the rigidities of the material. At the beginning, discrepancies and significant variations occurred in the identified moduli due to inhomogeneous distribution of the strains through the thickness. A method based on a simultaneous measurement on both sides of the ring has been adopted. Very satisfactory results have been obtained using this methodology.

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Periodical:

Applied Mechanics and Materials (Volumes 3-4)

Pages:

161-166

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.3-4.161

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Online since:

August 2006

Authors:

Raphaël Moulart, Stephane Avril, Fabrice Pierron

Keywords:

Optical Full-Field Method, Thick Composite Tube, Virtual Fields Method

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