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Erschienen in: Experimental Mechanics 6/2009

01.12.2009 | BRIEF TECHNICAL NOTE

Measuring Strains through the Thickness of a Composite Structural Specimen Subjected to Bending

verfasst von: M. Mulle, R. Zitoune, F. Collombet, L. Robert, Y.-H. Grunevald

Erschienen in: Experimental Mechanics | Ausgabe 6/2009

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Abstract

This study concerns the central reinforced zone of a composite structural specimen. In order to estimate the strain distribution during a series of three and four-point bending tests, several optical fiber Bragg grating sensors have been embedded in various levels of the ply stack. Simultaneously, surface strain field measurements by 3-D digital image correlation are undertaken. Both techniques show a general linear distribution of longitudinal strains through the thickness of the thick zone but values are slightly different. A numerical model is developed and a test-calculation dialogue is carried out. The complementary information given by the two optical techniques for in-core and surface measurements reveals the importance of considering structural and edge effects.

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Literatur
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2.
Zurück zum Zitat Collombet F, Mulle M, Grunevald Y-H, Zitoune R (2006). Contribution of embedded optical fiber with Bragg gratings in composite structures for test–simulation dialogue. Mechanics of Advanced Materials and Structures 13(5):429–439. doi:10.1080/15376490600777616.CrossRef Collombet F, Mulle M, Grunevald Y-H, Zitoune R (2006). Contribution of embedded optical fiber with Bragg gratings in composite structures for test–simulation dialogue. Mechanics of Advanced Materials and Structures 13(5):429–439. doi:10.​1080/​1537649060077761​6.CrossRef
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Metadaten
Titel
Measuring Strains through the Thickness of a Composite Structural Specimen Subjected to Bending
verfasst von
M. Mulle
R. Zitoune
F. Collombet
L. Robert
Y.-H. Grunevald
Publikationsdatum
01.12.2009
Verlag
Springer US
Erschienen in
Experimental Mechanics / Ausgabe 6/2009
Print ISSN: 0014-4851
Elektronische ISSN: 1741-2765
DOI
https://doi.org/10.1007/s11340-008-9209-2

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