| Autor: |
Williams, James H., Lee, Samson S., Nayeb-Hashemi, Hamid |
| Zdroj: |
Journal of Nondestructive Evaluation; September 1980, Vol. 1 Issue: 3 p191-199, 9p |
| Abstrakt: |
A model is developed to relate the energy loss factors of ultrasonic longitudinal waves propagating in the principal directions of a unidirectional graphite fiber composite to the composite constituent properties. All the constituents are assumed to behave as linear viscoelastic materials with energy dissipation properties defined by loss factors. It is found that by introducing a new constituent called the interface material, the composite and constituent properties can be brought into consistency with simple series and parallel models. An expression relating the composite loss factors to the loss factors of the constituents is derived and its coefficients are evaluated. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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