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Magnetostrictive properties of epoxy resins modified with Terfenol-D particles for detection of internal stress in CFRP. Part 1: Materials and processes

Kubicka, M. and Mahrholz, T. and Kühn, A. and Wierach, Peter and Sinapius, Michael (2012) Magnetostrictive properties of epoxy resins modified with Terfenol-D particles for detection of internal stress in CFRP. Part 1: Materials and processes. Journal of Materials Science, 47 (2012), pp. 5752-5759. Springer. doi: 10.1007/s10853-012-6466-3.

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Abstract

Magnetostrictive particles like Terfenol-D are investigated with respect to their ability to detect internal stress, generated in carbon fibre-reinforced polymers (CFRP) in a non-destructive way. The results are presented in two parts. The first part elucidates the ideas for the preparation of dispersions based on these particles with high density in epoxy resins. There is particular focus on the effects of particle size and concentration. Different particle sizes in a range of 0–300 lm are selected by special separation techniques. The particle size distribution is controlled in dry state by laser diffraction method. Changing of the chemical composition, particularly by the oxidation of particles, is analysed by EDX. Use of a magnetic field is identified as a suitable means for the stabilisation of these high-weighted particle fractions dispersed in epoxy resins. The particle size distribution, as well as the alignment of particles, in the cured epoxy resins is investigated by SEM and light microscopy. The second part of the study covers the magnetostrictive properties of the modified epoxy resins which are quantified by the detection of internal stress in CFRP.

Item URL in elib:https://elib.dlr.de/75952/
Document Type:Article
Title:Magnetostrictive properties of epoxy resins modified with Terfenol-D particles for detection of internal stress in CFRP. Part 1: Materials and processes
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Kubicka, M.UNSPECIFIEDUNSPECIFIED
Mahrholz, T.UNSPECIFIEDUNSPECIFIED
Kühn, A.UNSPECIFIEDUNSPECIFIED
Wierach, PeterUNSPECIFIEDUNSPECIFIED
Sinapius, MichaelUNSPECIFIEDUNSPECIFIED
Date:April 2012
Journal or Publication Title:Journal of Materials Science
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:47 (2012)
DOI :10.1007/s10853-012-6466-3
Page Range:pp. 5752-5759
Publisher:Springer
Keywords:Terfenol-D; magnetostriction; CFRP; epoxy resin; transducer; internal stress detection
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W - no assignment
DLR - Research area:Space
DLR - Program:W - no assignment
DLR - Research theme (Project):W - no assignment (old)
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Multifunctional Materials
Deposited By: Böhringer-Thelen, Isolde
Deposited On:08 Jun 2012 10:00
Last Modified:06 Sep 2019 15:27

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