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Experimental Investigations of 3D Woven Layer to-Layer Carbon/Epoxy Composites at Different Strain Rates

Yoo, Sanghyun and Dahale, Monali and Neale, Geoffrey and Toso, Nathalie and Catalanotti, Giuseppe and McIlhagger, Alistair and Archer, Edward and Harkin-Jones, Eileen and Voggenreiter, Heinz (2021) Experimental Investigations of 3D Woven Layer to-Layer Carbon/Epoxy Composites at Different Strain Rates. In: Experimental Investigations of 3D Woven Layer to-Layer Carbon/Epoxy Composites at Different Strain Rates, 250 (01029). EPJ Web of Conferences. DYMAT 2021 - 13th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading, 20-24 SEP 2021, Madrid, Spain. doi: 10.1051/epjconf/202125001029.

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Abstract

This paper reports experimental investigations of 3D woven carbon/epoxy composites on quasi-static and dynamic tensile properties in the longitudinal (warp) and transverse (weft) directions. Firstly, quasi-static tests were conducted to determine a baseline tensile strength and to find out the adequate specimen geometry required for dynamic testing. Secondly, dynamic tensile properties at intermediate strain rates (nominal strain rates from 0.1 to 200 s-1) were investigated alongside the corresponding failure mechanisms. Detailed information on failure patterns is obtained with strain field measurements from Digital Image Correlation (DIC) and CT scans. The results show that 3D woven composites are strain rate insensitive and the crack initiation is located near weft yarns and binding interlacement points due to the presence of resin rich areas.

Item URL in elib:https://elib.dlr.de/185821/
Document Type:Conference or Workshop Item (Other)
Title:Experimental Investigations of 3D Woven Layer to-Layer Carbon/Epoxy Composites at Different Strain Rates
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Yoo, SanghyunSanghyun.Yoo (at) dlr.dehttps://orcid.org/0000-0001-6924-1716
Dahale, MonaliUlster UniversityUNSPECIFIED
Neale, GeoffreyUlster UniversityUNSPECIFIED
Toso, NathalieNathalie.Toso (at) dlr.dehttps://orcid.org/0000-0003-2803-1450
Catalanotti, GiuseppeG.Catalanotti (at) qub.ac.ukhttps://orcid.org/0000-0001-9326-9575
McIlhagger, AlistairUlster UniversityUNSPECIFIED
Archer, EdwardUlster UniversityUNSPECIFIED
Harkin-Jones, EileenUlster UniversityUNSPECIFIED
Voggenreiter, HeinzHeinz.Voggenreiter (at) dlr.deUNSPECIFIED
Date:September 2021
Journal or Publication Title:Experimental Investigations of 3D Woven Layer to-Layer Carbon/Epoxy Composites at Different Strain Rates
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:250
DOI :10.1051/epjconf/202125001029
Editors:
EditorsEmailEditor's ORCID iD
Gálvez Díaz-Rubio, Franciscof.galvez@upm.esUNSPECIFIED
Cendón Franco, David Angeldavid.cendon.franco@upm.esUNSPECIFIED
Publisher:EPJ Web of Conferences
Series Name:DYMAT2021
Status:Published
Keywords:Strain-rate Effect, Experimental techniques, Specimen design, 3D woven composites, Digital Image Correlation
Event Title:DYMAT 2021 - 13th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading
Event Location:Madrid, Spain
Event Type:international Conference
Event Dates:20-24 SEP 2021
Organizer:F. Gálvez Díaz-Rubio and D.A. Cendón Franco
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Components and Systems
DLR - Research area:Aeronautics
DLR - Program:L CS - Components and Systems
DLR - Research theme (Project):L - Structural Materials and Design
Location: Stuttgart
Institutes and Institutions:Institute of Structures and Design > Structural Integrity
Deposited By: Yoo, Sanghyun
Deposited On:22 Mar 2022 09:38
Last Modified:22 Mar 2022 09:38

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