### Experimental determination of the multi-axial strain transfer from CFRP-laminates to embedded Bragg sensor

Nicolas Lammens, Geert Luyckx UGent and Wim De Waele UGent (2011) p.482-485
abstract
When embedded, optical fibre Bragg gratings are considered to be very valuable in terms of strain measurements of large composite structures for a number of reasons (safety rules, design criteria…). However, the strain field measured by the embedded optical fibre Bragg grating is not necessarily the one present in the composite material. Especially the measurement of transverse strain components is not that straight forward! In a previous paper, the multi-axial strain transfer from host material to sensor was determined by using a finite element method. In this paper, a method is defined to experimentally determine the multi-axial strain transfer. As an example, the strain transfer of a cross-ply laminate to a non-coated 80μm diameter Bragg sensor was determined. The different experiments (tensile tests and transverse compression tests) needed to obtain this transfer matrix are discussed. Good similarity was found between the numerically and experimentally determined transfer matrices.
author
organization
year
type
conference
publication status
published
subject
in
Smart Structures and Materials, 5th ECCOMAS thematic conference, Proceedings
pages
482 - 485
publisher
ECCOMAS
place of publication
Barcelona, Spain
conference name
5th ECCOMAS thematic conference on Smart Structures and Materials (SMART '11)
conference location
Saarbrücken, Germany
conference start
2011-06-07
conference end
2011-06-08
language
English
UGent publication?
yes
classification
C1
I have transferred the copyright for this publication to the publisher
id
1906650
handle
http://hdl.handle.net/1854/LU-1906650
date created
2011-09-22 13:10:33
date last changed
2017-03-09 12:39:29
@inproceedings{1906650,
abstract     = {When embedded, optical fibre Bragg gratings are considered to be very valuable in terms of strain measurements of large composite structures for a number of reasons (safety rules, design criteria{\textellipsis}). However, the strain field measured by the embedded optical fibre Bragg grating is not necessarily the one present in the composite material. Especially the measurement of transverse strain components is not that straight forward! In a previous paper, the multi-axial strain transfer from host material to sensor was determined by using a finite element method. In this paper, a method is defined to experimentally determine the multi-axial strain transfer. As an example, the strain transfer of a cross-ply laminate to a non-coated 80\ensuremath{\mu}m diameter Bragg sensor was determined. The different experiments (tensile tests and transverse compression tests) needed to obtain this transfer matrix are discussed. Good similarity was found between the numerically and experimentally determined transfer matrices.},
author       = {Lammens, Nicolas and Luyckx, Geert and Degrieck, Joris and De Waele, Wim},
booktitle    = {Smart Structures and Materials, 5th ECCOMAS thematic conference, Proceedings},
language     = {eng},
location     = {Saarbr{\"u}cken, Germany},
pages        = {482--485},
publisher    = {ECCOMAS},
title        = {Experimental determination of the multi-axial strain transfer from CFRP-laminates to embedded Bragg sensor},
year         = {2011},
}


Chicago
Lammens, Nicolas, Geert Luyckx, Joris Degrieck, and Wim De Waele. 2011. “Experimental Determination of the Multi-axial Strain Transfer from CFRP-laminates to Embedded Bragg Sensor.” In Smart Structures and Materials, 5th ECCOMAS Thematic Conference, Proceedings, 482–485. Barcelona, Spain: ECCOMAS.
APA
Lammens, N., Luyckx, G., Degrieck, J., & De Waele, W. (2011). Experimental determination of the multi-axial strain transfer from CFRP-laminates to embedded Bragg sensor. Smart Structures and Materials, 5th ECCOMAS thematic conference, Proceedings (pp. 482–485). Presented at the 5th ECCOMAS thematic conference on Smart Structures and Materials (SMART  ’11), Barcelona, Spain: ECCOMAS.
Vancouver
1.
Lammens N, Luyckx G, Degrieck J, De Waele W. Experimental determination of the multi-axial strain transfer from CFRP-laminates to embedded Bragg sensor. Smart Structures and Materials, 5th ECCOMAS thematic conference, Proceedings. Barcelona, Spain: ECCOMAS; 2011. p. 482–5.
MLA
Lammens, Nicolas, Geert Luyckx, Joris Degrieck, et al. “Experimental Determination of the Multi-axial Strain Transfer from CFRP-laminates to Embedded Bragg Sensor.” Smart Structures and Materials, 5th ECCOMAS Thematic Conference, Proceedings. Barcelona, Spain: ECCOMAS, 2011. 482–485. Print.