| Name | Support | Language | Availability | Edition date | Price | ||
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PDF |
English |
Active |
11/1/2000 |
€19.00 |
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Details
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
Additional Info
| Author | Society of Manufacturing Engineers |
|---|---|
| Published by | SME |
| Document type | Standard |
| Theme | /subgroups/9443 |
| Number of pages | 10 |
| Keyword | SME EM00-247 |
