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Comparison of Low-Velocity Impact Damage Behavior of Unidirectional Carbon Fiber-Reinforced Thermoset and Thermoplastic Composites

  • This paper investigates the damage behavior of thermoset and thermoplastic fiber-reinforced composites. The specimens were subjected to low-velocity impacts (LVI) to produce barely visible impact damages (BVID). To compare the dependency of the matrix system and the laminate lay-up on the impact damage, four test series were set up. Therefore, laminates with an epoxy (EP) and a polyether ether ketone (PEEK) matrix in a quasi-isotropic (QI) [+45/0/-45/90]2s and an orthotropic (OT) fiber lay-up [0/90]4s were manufactured. To eliminate the influence of variant fiber systems, the thermoplastic tape and the thermoset prepreg contain similar carbon fibers (CF). After impact testing with three different impact energies, inner damages were investigated by using ultrasonic analyses. To get a deeper understanding of the interior damage mechanisms, cross sections of the damaged areas were examined via reflected light microscopy. By using these destructive and non-destructive test methods, significant differences in the damage behavior of composites with thermoplastic and thermoset matrix systems were identified for both laminate lay-ups.

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Metadaten
Author:Florian Schimmer, Sven Ladewig, Nicole Motsch, Joachim M. Hausmann, Ingo EhrlichORCiDGND
DOI:https://doi.org/10.4028/www.scientific.net/KEM.809.9
ISSN:1662-9795
Parent Title (English):Key Engineering Materials
Publisher:Trans Tech Publications
Document Type:Article
Language:English
Year of first Publication:2019
Release Date:2021/03/17
Tag:Barely Visible Impact Damage; Carbon Fiber Reinforced Plastic; Low-velocity-impact; Thermoplastics; Ultrasonic Analysis
Volume:809
First Page:9
Last Page:14
Andere Schriftenreihe:Trans Tech Publications
Institutes:Fakultät Maschinenbau
Technologie-Campus Neustadt an der Donau
Fakultät Maschinenbau / Labor Faserverbundtechnik (LFT)
Begutachtungsstatus:peer-reviewed
research focus:Produktion und Systeme
Licence (German):Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG