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Healable composites and their performance through mechanical and durability testing / Nathan Hostettler in JEC COMPOSITES MAGAZINE, N° 128 (05-06/2019)

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inJEC COMPOSITES MAGAZINE > N° 128 (05-06/2019) . - p. 60-63

Titre :	Healable composites and their performance through mechanical and durability testing
Type de document :	texte imprimé
Auteurs :	Nathan Hostettler, Auteur ; Amaël Cohades, Auteur ; Véronique Michaud, Auteur
Année de publication :	2019
Article en page(s) :	p. 60-63
Note générale :	Bibliogr.
Langues :	Anglais (eng)
Catégories :	Cisaillement (mécanique) Composites -- Effets de l'humidité Composites -- Effets de la température Composites thermoplastiques -- Propriétés mécaniques Entretien et réparations Epoxydes Essais de résilience Flexion trois points Humidité -- Absorption:Eau -- Absorption Matériaux -- Fatigue
Index. décimale :	668.4 Plastiques, vinyles
Résumé :	Composite materials are massively used as a lightweight alternative to metals in structural applications. The brittle nature of their matrix, however, makes them more prone to crack development and propagation, leading to prolonged and costly maintenance operations coupled with a strong environmental impact. This research focuses on epoxy/thermoplastic-based healable composites as a durable and sustainable alternative to standard composites, to reduce the maintenance costs due to impact events and fatigue crack propagation.
Note de contenu :	- MATERIALS AND METHODS : Materials and sample preparation - Impact and compression after impact (CAI) - Moisture absorption and short-beam shear (SBS) - Three-point bending fatigue testing - RESULTS AND DISCUSSION : Mechanical and healing properties after impact damage - Effects of humidity and temperature on mechanical properties - Fatigue and lifetime extension - Fig. 1 : Images of the reference and healable impacted samples before and after healing - Fig. 2 : Healing efficiency as a function of the impact energy measured by CAI - Fig. 3 : Water absorption and relative decay of SBS as a function of the time spent in the environmental chamber at 80°C and 90°C RH - Fig. 4 : Wholer curve of the healable and reference systems - Fig. 5 : Extension of a sample's lifetime through successive healing steps compared to unhealed samples - Fig. 6 : Typical aerospace part produced with CompPair's healable system
En ligne :	https://drive.google.com/file/d/1Az_L5Fa4pJM1XwcfRVfg_PD9rpwityur/view?usp=drive [...]
Format de la ressource électronique :	pdf
Permalink :	https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32542

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