| Nom | Support | Langue | Disponibilité | Date d'édition | Prix | ||
|---|---|---|---|---|---|---|---|
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PDF |
Anglais |
Active |
01/11/2000 |
19,00 € |
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Détails
Some recent experimental observations of highly dynamic crack growth events in thick unidirectional graphite fiber-reinforced epoxy matrix composite plates are presented. The composite plates were symmetrically (mode-I) and asymmetrically (mode-II) loaded in a one-point bend configuration with an edge pre-notch machined in the fiber direction. The lateral shearing interferometric technique of coherent gradient sensing (CGS) was used in conjunction with high-speed photography. Symmetric, mode-I cracks initiated at 1300 m/s and subsequently accelerated up to the Rayleigh wave speed but never exceeded it. For asymmetric, Mode-II types of loading, the results reveal highly unstable and intersonic, shear-dominated crack growth along the fibers. The intersonic cracks propagated with unprecedented speeds reaching 7400 m/s, more than three times the shear wave speed of the composite, and featur
Informations supplémentaires
| Auteur | Society of Manufacturing Engineers |
|---|---|
| Edité par | SME |
| Type de document | Norme |
| Thème | /subgroups/9443 |
| Nombre de pages | 10 |
| Mot-clé | SME EM00-247 |
