elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Magnetostrictive properties of epoxy resins modified with Terfenol-D particles for detection of internal stress in CFRP. Part 2: evaluation of stress detection

Kubicka, Marcus and Mahrholz, Thorsten and Kühn, Alexandra and Wierach, Peter and Sinapius, Michael (2013) Magnetostrictive properties of epoxy resins modified with Terfenol-D particles for detection of internal stress in CFRP. Part 2: evaluation of stress detection. Journal of Materials Science, 48 (2013), pp. 6578-6584. Springer. doi: DOI 10.1007/s10853-013-7454-y. ISSN 0022-2461.

Full text not available from this repository.

Abstract

The mechanical performance of carbon fibre reinforced polymers is predominantly limited by internal stress induced by resin shrinkage of the polymer matrix. Terfenol-D particles are investigated as internal sensors to detect the stress situation on a non-destructive way. Part 1 of the article describes the preparation and characterization of the samples used in the investigation of the sensory effect (Kubicka et al. J Mater Sci 47:5752–5759, 2012). Part 2 presents the results of the evaluation of the stress detection.A fundamental discussion is given how these magnetostrictive particles act as stress sensors in epoxy resins using the Villari effect. Analysing this effect in terms of particle content, particle size and particle distribution the most promising parameters are identified. Obviously the higher the particle content (20 wt%) and the smaller the particle size (\20 lm) combined with a strong homogeneous particle distribution the higher the magnetic flux density changes, in case of tensile loads. These corresponding stress situations are quantified by a Hall probe. Interestingly, the magnetic flux density changes (DB) can be significantly increased by a premagnetization step of the samples, allowing a more sensitive detection of the Villari effect.

Item URL in elib:https://elib.dlr.de/83527/
Document Type:Article
Title:Magnetostrictive properties of epoxy resins modified with Terfenol-D particles for detection of internal stress in CFRP. Part 2: evaluation of stress detection
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Kubicka, MarcusUNSPECIFIEDUNSPECIFIED
Mahrholz, ThorstenUNSPECIFIEDUNSPECIFIED
Kühn, AlexandraUNSPECIFIEDUNSPECIFIED
Wierach, PeterUNSPECIFIEDUNSPECIFIED
Sinapius, MichaelUNSPECIFIEDUNSPECIFIED
Date:May 2013
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:48
DOI :DOI 10.1007/s10853-013-7454-y
Page Range:pp. 6578-6584
Publisher:Springer
ISSN:0022-2461
Status:Published
Keywords:Terfenol-D; magnetostriction; CFRP; epoxy resin; transducer; internal stress detection
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Flexible Aircraft (old)
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Multifunctional Materials
Deposited By: Böhringer-Thelen, Isolde
Deposited On:13 Aug 2013 09:47
Last Modified:06 Sep 2019 15:27

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.