ABSTRACT

Based on debonding mechanism, it seems to be impossible to observe a debonding until stress stays under the bond strength. This description highlights the prevalence of the tensile strength on the existence and the propagation of debonding. Figure 2 presents the length of debonding measured during loading tests

in function of the adhesion evaluation. The debonding obtained on SCA-beams indicates that an adherence of 2,60 MPa does not guarantee the monolithic behaviour whereas an adherence of 1,80 MPa (R-JP7S) seems to be sufficient. Adhesion appeared to be a non sufficient parameter to prevent debonding.