Titre : |
In-sevice inspection of damage in composite structures |
Type de document : |
texte imprimé |
Année de publication : |
2022 |
Langues : |
Anglais (eng) |
Catégories : |
Analyse de dommages (matériaux) Composites à fibres de carbone Emission acoustique Endommagement (mécanique) Essais dynamiques Fibres à orientation unidirectionnelle Rupture (mécanique) Stratifiés -- Détérioration Traction (mécanique)
|
Index. décimale : |
668.4 Plastiques, vinyles |
Résumé : |
Through the use of suitable loading scenarios, different basic damage modes were inflicted on carbon-reinforced thermoplastic material specimens monitored by acoustic emission. This paper describes the damages sustained by the CFRP materials and structures, from the point of view of acoustic emission. |
Note de contenu : |
- Using acoustic emission for composite materials monitoring
- Approach
- Materials and methods : Acoustic emission system and analysis - Materials - Test description and instrumentation - Analysis of the acoustic emission results
- Results
- Table 1 : Testing configurations and instrumentation
- Table 2 : Damage modes observed during the mechanical tests
- Table 3 : Frequency matrix and observed damage mode matrix superposed (filled case - damage mode observed, blue - low hit count, green-intermediate hit count and red-high hit count)
- Fig. 1 : Damage propagation mechanisms in composite laminates (with/without a 0° ply) under tensile load
- Fig. 2 : Acoustic emission activity and load evolution for a UD tensile test loaded in the fibre direction
- Fig. 3 : AE activity frequency spectrum for a tensile test loaded in the fibre direction and frequency peak values
- Fig. 4 : Failure mode of a +/- 45° specimen in tension
- Fig. 5 : Acoustic emission signal frequency determined for each type of damage by different authors compared to the current study |
Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38700 |
in JEC COMPOSITES MAGAZINE > N° 145 (04-05/2022)