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Dynamic intralaminar fracture toughness characterisation of unidirectional carbon fibre-reinforced polymer composites using a high-speed servo-hydraulic test set-up

Yoo, Sanghyun and Denis, Dalli and Catalanotti, Giuseppe and Toso, Nathalie and Kessel, Fiona and Voggenreiter, Heinz (2022) Dynamic intralaminar fracture toughness characterisation of unidirectional carbon fibre-reinforced polymer composites using a high-speed servo-hydraulic test set-up. Composite Structures, 295 (115838). Elsevier. doi: 10.1016/j.compstruct.2022.115838. ISSN 0263-8223.

Full text not available from this repository.

Abstract

This paper presents experimental investigations on the in-plane shear behaviour and intralaminar fibre-dominated fracture of UD IM7/8552 carbon-epoxy composites, loaded under quasi-static (QS) and intermediate strain rates (IR). Dynamic tensile testing is carried out using a previously proposed test methodology involving a high-speed servo-hydraulic test machine and Digital Image Correlation (DIC), with the aim of providing an alternative means to Split-Hopkinson pressure bar testing for the characterisation of similar composite materials at intermediate strain rates. Three sizes of Double-Edge Notched Tension (DENT) specimens are tested at QS and IR to obtain the mode I intralaminar fracture toughness. The results of both in-plane shear and fracture toughness tests compare well with literature data, supporting the proposed methodology. This study is a first step towards standardising a test method for measuring various mechanical properties of fibre-reinforced polymer (FRP) composites at intermediate strain rates.

Item URL in elib:https://elib.dlr.de/189732/
Document Type:Article
Title:Dynamic intralaminar fracture toughness characterisation of unidirectional carbon fibre-reinforced polymer composites using a high-speed servo-hydraulic test set-up
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Yoo, SanghyunUNSPECIFIEDhttps://orcid.org/0000-0001-6924-1716
Denis, DalliUNSPECIFIEDUNSPECIFIED
Catalanotti, GiuseppeUNSPECIFIEDhttps://orcid.org/0000-0001-9326-9575
Toso, NathalieUNSPECIFIEDhttps://orcid.org/0000-0003-2803-1450
Kessel, FionaUNSPECIFIEDhttps://orcid.org/0000-0001-9417-7162
Voggenreiter, HeinzUNSPECIFIEDUNSPECIFIED
Date:1 September 2022
Journal or Publication Title:Composite Structures
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:295
DOI:10.1016/j.compstruct.2022.115838
Publisher:Elsevier
ISSN:0263-8223
Status:Published
Keywords:: Strain-rate testing; Carbon fibre composites; Digital Image Correlation; Fracture toughness; Size effect.
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 > Ceramic Composite Structures
Institute of Structures and Design > Structural Integrity
Institute of Structures and Design > Leitungsbereich BT
Deposited By: Yoo, Sanghyun
Deposited On:08 Nov 2022 09:16
Last Modified:08 Nov 2022 09:16

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