Article révisé par les pairs
| Résumé : | After an overview and discussion about the amount of information on the interphase region given by classical 'single number' characterisation methods such as ILST, pull-out and fragmentation tests, different models of the interphase region considered as classical continuum are analysed. A model is proposed, based on an interphase region with varying properties. By integration of those varying properties over the thickness of the interphase region, from the bulk properties of one phase to those of the other phase, assuming the transverse dimensions as very small, the control parameters, or integrated moduli, of the interphase region are obtained. This model indicates the importance of the gradients of the properties of the interphase region on the stress transfers between the original phases. The application of this model under specific stress states used for the classical mechanical 'single number' tests can give insight in the physical meaning of the results of those tests and can give a rational way to compare the scales for the results of those tests. © 1993. |
